Class / Patent application number | Description | Number of patent applications / Date published |
343797000 | Plural crossed (e.g., turnstile) | 60 |
20080291105 | Crossed-dipole antenna for low-loss IBOC transmission from a common radiator apparatus and method - A dual-port corporate-feed broadband antenna uses two pairs of crossed dipoles in each bay, fed by a single hybrid coupler in each bay, to support hybrid-mode IBOC® VHF-band broadcasting. Each 3 dB quarter-wave coupler receives a share of an analog FM broadcast signal on a first input and a digital OFDM broadcast signal, 20 dB down, on a second input. The respective coupler output ports drive coaxial lines to tees feeding respective quarter-wave-separated crossed dipoles. The dipoles in each bay are arranged in a square to one side of their coupler, making side mounting practical. The resultant omnidirectional analog and digital radiation patterns have the same circular polarization and opposite phase rotation. Bay spacing for vertical null is a function ((n−1)/n) of the number of bays in the antenna. | 11-27-2008 |
20080291106 | Crossed dual tag and RFID system using the crossed dual tag - A crossed dual tag includes two tags each of which comprises, on one plane, a dipole antenna formed with conductors, a feeding part to which an IC chip is connected at the center of the dipole antenna, and a loop-shaped inductance part that is formed between the dipoles of the dipole antenna and connected to the dipoles of the dipole antenna in parallel with respect to the feeding part. The two tags are crossed at right angles, and stacked to contact as closely as possible so that the loops of the inductance parts overlap as wide as possible. A reader/writer of an RFID system sequentially switches the surface of a circular polarized wave of a wireless signal between forward and backward directions, and reads information written to a user memory area from the tag that responds more strongly. | 11-27-2008 |
20090002252 | TURNSTYLE ANTENNA ELEMENT - An improved antenna radiating element for a Super-turnstile antenna is provided. The radiating element includes an intermediate conductive rod having an upper terminating rod connected thereto proximal to an upper end thereof and a lower terminating rod connected thereto proximal to a lower end thereof. The terminating rods extend a distance of approximately 0.1 substantially perpendicular to and out from the conductive rod. Each terminating rod further includes a tail section that extends inwardly and substantially parallel to the intermediate conductive rod a distance of approximately 0.25. | 01-01-2009 |
20090096699 | COMPACT 3-PORT ORTHOGONALLY POLARIZED MIMO ANTENNAS - Generalized non-limiting embodiments include employing a dipole antenna and/or a half slot antenna. Each of the antennas constitutes three mutually perpendicular radiating elements to achieve good isolation and low antenna signal correlation between the three ports. In one generalized non-limiting embodiment the antennas are fabricated on FR-4 epoxy boards. Experimental results show that the antennas resonate a reasonable frequency and have a desired mutual coupling. In addition experimental results for the diversity performance and the MIMO channel capacity are also provided for these antennas and these results show that the herein described antennas offer good diversity gain and the channel capacity can be increased by as much as three times by using these antennas over conventional antennas. | 04-16-2009 |
20090096700 | BASE STATION ANTENNA WITH BEAM SHAPING STRUCTURES - A dual polarization base station antenna producing a beam having 3 dB azimuth beamwidth of E(theta) within 5° of the 3 dB azimuth beamwidth of E(phi). The antenna also maintains E(theta) and E(phi) within 3 dB of each other over a wide beamwidth up to 120°, and over a wide bandwidth of 30% of the center frequency. The antenna achieves these performance characteristics through beam shaping structures connected to or located near the ground plane supporting the dipole antenna elements. By adjusting the locations and shapes of the beam shaping structures, specific antennas are designed to meet these design characteristics for different desired beamwidths, including 45°, 60°, 90° and 120°. | 04-16-2009 |
20090262039 | Phased-Array Antenna Radiator for a Super Economical Broadcast System - A phased-array antenna radiator for a super economical cellular communication system is provided. The phased-array antenna radiator comprises two dipole radiators. The first dipole radiator includes a first monopole radiating element supported by a first outer conductor, a second monopole radiating element supported by a second outer conductor, a first inner conductor, disposed within the first outer conductor and extending therethrough, having an upper termination, a first feed strap, attached to the upper termination of the first inner conductor, and a first stub, disposed within the second outer conductor and attached to the first feed strap. The second dipole radiator includes a third monopole radiating element supported by a third outer conductor, a fourth monopole radiating element supported by a fourth outer conductor, a second inner conductor, disposed within the third outer conductor and extending therethrough, having an upper termination, a second feed strap, attached to the upper termination of the second inner conductor, and a second stub, disposed within the fourth outer conductor and attached to the second feed strap. | 10-22-2009 |
20090267856 | Phased-Array Antenna Radiator Parasitic Element for a Super Economical Broadcast System - A parasitic element for a phased-array antenna radiator is provided. The radiator comprises a first dipole radiator including two coplanar monopole radiating elements disposed symmetrically about a radiation axis, a second dipole radiator, arranged orthogonally with respect to the first dipole radiator, including two coplanar radiating elements disposed symmetrically about the radiation axis, and a parasitic gain element, having a substantially elliptical shape, disposed above the first and second dipole radiators and centered on the radiation axis. | 10-29-2009 |
20100007570 | SMALL PROFILE ANTENNA AND RFID DEVICE HAVING SAME - An antenna system for a Radio Frequency Identification (RFID) tag in one embodiment includes a base portion; at least one angled portion oriented to have a tangential angle of between about 1 degree and about 179 degrees from a plane of the base portion; and an antenna trace on the at least one angled portion. An antenna system for an RFID tag in another embodiment includes a base portion; at least one angled portion having at least two sections each oriented to have a tangential angle of between about 1 degree and about 179 degrees from a plane of the base portion, the two sections having different overall angles relative to the base portion; and an antenna trace on the at least one angled portion. Additional systems and methods are presented. | 01-14-2010 |
20100007571 | DIPOLE-SHAPED RADIATOR ARRANGEMENT - An improved dipole-shaped radiator arrangement is characterized by the following features: a base is disconnected from ground or a ground surface with respect to direct current, or is capacitively coupled to a ground surface; a first dipole or radiator half is electro-galvanically or capacitively fed by a conductor; a second dipole or radiator half is fed via a further feed line in the form of an inner conductor feed; the one end of the first inner conductor section is electrically connected to a matching network; the other end of the third inner conductor section is connected to ground or to the ground surface with respect to direct current. | 01-14-2010 |
20100149062 | DIPOLE FOR HEMISPHERICAL COVERAGE ANTENNA - Systems and methods for providing an antenna enabling hemispherical coverage are disclosed. The system includes a conductive enclosure having an open portion and a closed portion. The system further includes a pair of perpendicularly-disposed dipole antennas. Each antenna of the perpendicularly-disposed dipole antennas includes a pair of conductors extending to a pair of tips disposed outside of the open portion of the conductive enclosure. The system further includes a hybrid coupler having a pair of output terminals coupled to each pair of conductors of each antenna of the perpendicularly-disposed dipole antennas. The hybrid coupler is configured to apply signals of equal magnitude to the each antenna of the perpendicularly-disposed dipole antennas that differ in phase by ninety degrees. | 06-17-2010 |
20100253587 | ANTENNA FOR RECEPTION OF SATELLITE RADIO SIGNALS EMITTED CIRCULARLY, IN A DIRECTION OF ROTATION OF THE POLARIZATION - An antenna for reception of satellite radio signals emitted circularly in the direction of rotation of polarization has a conductive base surface, an antenna connection point, an antenna element connection point and at least two antenna elements. The first antenna element is a loop antenna formed as a conductor loop disposed substantially parallel but spaced apart from the base surface. The loop antenna has a plurality of capacitors disposed along the conductor loop. The antenna connection point is coupled to at least one interruption of the loop antenna. This connection point is configured to feed a ring current into the loop antenna. There is also at least one additional antenna element extending between the antenna element connection point and the loop antenna. There is at least one antenna output connector linearly polarized in a spatial direction and a plurality of networks forming a matching network and a phase shifter network configured to connect the antenna elements to at least one antenna output connector. The antenna element connection point and the loop antenna are coupled to each other by the two networks. In reciprocal operation of the antenna, the radiation fields of the loop antenna and of the additional antenna element are superimposed with different phases in a far field of the antenna. The additional antenna element has a polarization orientated substantially perpendicular to the polarization of the loop antenna and an essentially orthogonal phase in the far field. | 10-07-2010 |
20110025573 | CROSS-DIPOLE ANTENNA - An apparatus has an improved antenna pattern for a cross dipole antenna. Such antennas desirably have an omnidirectional antenna pattern. Conventional cross dipole antennas exhibit nulls in their antenna patterns, which can cause antennas to deviate from a standard or specification. Applicant recognized and confirmed that the connection of a coaxial cable to the antenna arms is a cause of the nulls in the antenna pattern, and has devised techniques disclosed herein to compensate or cancel the effects of the connection. In one embodiment, the arms of the cross dipole antenna that are coupled to a center conductor of the coaxial cable remain of conventional length, but the arms of the cross dipole antenna that are coupled to a shield of the coaxial cable are lengthened by a fraction of the radius of the outer diameter of the coaxial cable. | 02-03-2011 |
20110068992 | CROSS-DIPOLE ANTENNA CONFIGURATIONS - An apparatus has an improved antenna pattern for a cross dipole antenna. Such antennas desirably have an omnidirectional antenna pattern. Conventional cross dipole antennas exhibit nulls in their antenna patterns, which can cause antennas to deviate from a standard or specification. Applicant recognized and confirmed that the connection of a coaxial cable to the antenna arms is a cause of the nulls in the antenna pattern, and has devised techniques disclosed herein to compensate or cancel the effects of the connection. In one embodiment, the arms of the cross dipole antenna that are coupled to a center conductor of the coaxial cable remain of conventional length, but the arms of the cross dipole antenna that are coupled to a shield of the coaxial cable are lengthened by a fraction of the radius of the outer diameter of the coaxial cable. | 03-24-2011 |
20110181483 | Electric Device - A locating device includes an LCR antenna apparatus which has an antenna unit having a first polarization direction and is configured to transmit and/or receive a measurement signal having the first polarization direction. The antenna unit has at least one second polarization direction for transmitting and/or receiving the measurement signal. | 07-28-2011 |
20110267252 | Non-Cutoff Frequency Selective Surface Ground Plane Antenna Assembly - Described is an apparatus and method for reducing noise in an information bearing signal is provided. A feeding element receives dual-polarized wideband electromagnetic signals. The feeding element is coupled to a Non-Cutoff Frequency Selective Surface ground plane. The Non-Cutoff Frequency Selective Surface ground plane allows for a line-of-sight signal and a surface wave to cancel. The Non-Cutoff Frequency Selective Surface ground plane can be a metal plate with a plurality of corrugations. The corrugations can be concentric rings, each corrugation having a predetermined height and a predetermined spacing from adjacent corrugations. | 11-03-2011 |
20110291905 | DUAL-POLARIZED RADIATION ELEMENT AND PLANAR OSCILLATOR THEREOF - A planar oscillator is provided includes an oscillator portion formed by four oscillator arms, the four oscillator arms defining two orthogonal half-wave oscillators, each oscillator arm being of a square and these oscillator arms being arranged in a square configuration, each oscillator arm having a feeding terminal defined at a corner thereof facing another oscillator arm; a connective portion connected among these oscillator arms so that these arms are connected with each other; and a medium base plate for printing the oscillator portion and connective portion thereon. In addition, a plurality of through holes is defined in the medium base plate. The antenna made according to the invention is simple and compact in construction and good in performance. In addition, the antenna is easy to be manufactured and assembled. Moreover, the antenna of the invention benefits from wide bandwidth, high gain and cross polarization ratio, and excellent isolation. | 12-01-2011 |
20110298682 | DUAL-POLARIZATION RADIATING ELEMENT FOR BROADBAND ANTENNA - A radiating element of a broadband antenna comprises a foot supporting first and second components disposed in a first plane which are two half-wavelength symmetrically fed dipoles generating a linear dual polarization, both comprising two arms. According to the invention, the radiating element further comprises at least one third component chosen from among a dipole or a patch disposed within a second plane placed above the first plane, and each of the components is made up of a volume fractal pattern. | 12-08-2011 |
20120019425 | Antenna For Increasing Beamwidth Of An Antenna Radiation Pattern - An antenna includes a ground plane, a dielectric, and an active radiating element. The dielectric is disposed on the ground plane, and the active radiating element is embedded in the dielectric for transmitting and/or receiving an RF signal. The antenna also includes a feeding element and a passive radiating element. The feeding element extends into the dielectric and is electrically coupled to the active radiating element. The passive radiating element is disposed on the ground plane and surrounds a periphery of the dielectric for perturbating the RF signal. The ground plane has a plurality of edges. At least one of the edges extends as a curvilinear lip. The curvilinear lip extends in a direction opposite the passive radiating element for directing the RF signal and for preventing abrupt discontinuity of the RF signal. | 01-26-2012 |
20120075155 | Antenna Assemblies - Various antenna assemblies are disclosed. In one example, an antenna assembly includes a reflector including a first ground plane, a second ground plane below and spaced apart from the reflector, an antenna adjacent a surface of the reflector opposite the second ground plane, and a grounding post galvanically connecting the first ground plane and the second ground plane. | 03-29-2012 |
20120081259 | Inverted-U Crossed-Dipole Satcom Antenna - An antenna assembly includes an antenna/radio interface, a body section connected to the antenna/radio interface, and a group of omnidirectional radiating elements, where each radiating element has a first portion with a first end and a second end, the first end being coupled to the body section and the second end being opposite the first end. Each radiating element also has a second portion with a first end, a second end, and a linear section between the first end and the second end, the first end of the second portion being coupled to the second end of the first portion. The second end of the second portion is opposite the first end of the second linear portion and spaced away from the body section by a distance, arranged so that the first portion of each element is substantially coaxial with the first portion of at least one other of the group of omnidirectional radiating elements, and arranged so that the first portion of each element is substantially orthogonal to the first portion of at least two other of the group of omnidirectional radiating elements, wherein the first portion and the second portion meet at a non-zero angle to each other. | 04-05-2012 |
20120098725 | Broadband Clover Leaf Dipole Panel Antenna - An antenna radiator is provided. The radiator includes four elements, each including a node, a first ring connected to the node, and a second ring connected to the node and disposed inside of and coplanar with the first ring. The first ring includes a first plurality of segments, and the second ring includes a second plurality of segments. | 04-26-2012 |
20130093639 | ANTENNA - The present invention provides an antenna that enables circular polarization in a plurality of oscillation frequencies. A multi-frequency circular polarization antenna is formed with a substrate and multi-frequency antennas. The multi-frequency antennas are formed with antenna elements, shunt inductor conductors, series capacitor conductors, series inductor conductors, a center point, and input/output terminals. The multi-frequency antenna is arranged to cross the multi-frequency antenna at the center point to make an angle that is less than 90 degrees with respect to the multi-frequency antenna. | 04-18-2013 |
20130106668 | ANTENNA RADIATING ELEMENT | 05-02-2013 |
20130265206 | CHOKES FOR ELECTRICAL CABLES - This disclosure relates to chokes for suppressing undesired signals such as such as common mode electromagnetic interference (EMI) and/or radio frequency interference (RFI). The chokes can include an electro-conductive sleeve disposed over an electrical cable and the sleeve can be configured to suppress an undesired signal. In some embodiments, the electro-conductive sleeve and have a half-wave sleeve, which can be electrically open at both ends. Additional insulating material can be included between the electrical cable and the sleeve. Multiple electro-conductive sleeves and be disposed substantially concentrically over the cable. The chokes can be configured to reduce passive intermodulation (PIM). The sleeve can have a longitudinal slot that extends the length of the sleeve. The sleeve can include multiple slots that separate the sleeve into multiple panels, which can be configured to suppress different signals. | 10-10-2013 |
20130314292 | Dipole Strength Clip - An antenna comprising PCB elements mechanically secured by a clip is provided. The antenna has a feedboard printed circuit board having a feed network, at least one radiating element, and the clip. The radiating element includes first and second printed circuit boards, each having a base disposed on a surface of the feedboard printed circuit board. In one example, the printed circuit boards each further include a dipole disposed above the feedboard. In another example, the PCBs are supports and a cross-polarized radiating may be mounted on top. The first and second PCBs may include slots so that the boards may be assembled together. The PCBs also include an extension extending through a first slot on the feedboard PCB, and indentations disposed on the first extension. The clip may have retainers that engage the indentations of the extensions. | 11-28-2013 |
20140035791 | Broadband Clover Leaf Dipole Panel Antenna - An antenna radiator is provided. The radiator includes four elements, each including a node, a first ring connected to the node, and a second ring connected to the node and disposed inside of and coplanar with the first ring. The first ring includes a first plurality of segments, and the second ring includes a second plurality of segments. | 02-06-2014 |
20140184463 | Wide-Band Active Antenna System for HF/VHF radio - An active antenna system for receiving electromagnetic radiation at frequencies below 100 MHz. The system includes a vertical support mast; a front end electronics unit including an active balun, the front end electronics unit affixed to the support mast; two crossed-dipole antennas affixed oriented at about 90 degrees to each other, each crossed-dipole antenna having two arms formed of electrically conductive material, each arm having an isoceles triangular frame with an apex of the frame electrically connected to a feedpoint of the front end electronics unit, each arm also having a longitudinal member extending from the apex to the center of the base of the triangular shape and a cross member extending between sides of the triangular frame. The system can operate independently or as part of a long wavelength array for astronomical radio telescope applications. | 07-03-2014 |
20140232606 | BROADBAND CIRCULARLY POLARIZED BENT-DIPOLE BASED ANTENNAS - Technologies are presented for providing circularly polarized antenna topologies based on multiple bent-dipole elements over a ground plane configuration. In some examples, Moxon based cross radiating elements may be fed through a hybrid 90° quadrature coupler. The radiating element may be widened and tapered relative to a standard bent-dipole configuration forming bow tie structures with approximately 90° bends to achieve broadband operation. The tapered branches may be split into two sub-branches and the bend angle increased to further increase bandwidth and gain of the antenna. | 08-21-2014 |
20150048988 | WIDEBAND BASE STATION ANTENNA RADIATOR - A radiator for a base station antenna is disclosed. The disclosed radiator includes a feed part and a multiple number of radiation elements configured to receive feed signals provided from the feed part, where each of the radiation elements comprises a first conductive part, which is fed with a + signal from the feed part, and a second conductive part, which is fed with a − signal from the feed part, and where a first expanding part that gradually increases in horizontal width along a direction of increasing distance from the first conductive part is joined to an end of the first conductive part, and a second expanding part that gradually increases in horizontal width along a direction of increasing distance from the second conductive part is joined to an end of the second conductive part. | 02-19-2015 |
20150061957 | CROSS-TYPE TRANSMISSION MODULE AND ASSEMBLY METHOD THEREOF - A method for assembling a cross-type transmission module is provided, which includes the following steps. First, a first circuit board and a second circuit board are provided, wherein the first circuit board includes a first antenna, and the second circuit board includes a first groove and a second antenna. Then, the first circuit board is inserted partially through the first groove along an insertion direction to connect the first circuit board to the second circuit board, wherein the first circuit board is on a first plane, the second circuit board is on a second plane, an included angle θ is formed between the insertion direction and the second plane, and the included angle is not zero. In this embodiment, the included angle is 90 degrees, and the second plane is perpendicular to the first plane. | 03-05-2015 |
20150084823 | DUAL-POLARIZED ANTENNA RADIATING ELEMENT AND BASE STATION ANTENNA - Embodiments of the present invention disclose a dual-polarized antenna radiating element. The dual-polarized antenna radiating element includes four radiators and a connecting part, where the four radiators are arranged in a cross shape, with each two of them oppositely disposed, the four radiators form a radiating plane, one end of each of the radiators is connected to the connecting part, and the other end extends in a direction away from the connecting part. Each of the radiators includes a first radiating arm and a second radiating arm, where the first radiating arm and the second radiating arm are asymmetric. In the embodiments of the present invention, a new resonant frequency band is added by using asymmetric radiating arms, thereby broadening the width of a resonant frequency band, so that the antenna radiating element can adapt to a broader resonant frequency band. | 03-26-2015 |
20150097748 | WIDE BAND LTE ANTENNA - A wide band LTE antenna that can operate in a frequency range of from approximately 690 MHz to approximately 2700 MHz is provided. The antenna can include a first PCB including a first conductor and a second PCB including a second conductor. A first plurality of arms of the first conductor and a first plurality of arms of the second conductor can be connected to a feed microstrip line disposed on a first side of the second PCB, a second plurality of arms of the first conductor and a second plurality of arms of the second conductor can be connected to a ground connection disposed on a second side of the second PCB, and the feed microstrip line can avoid connection with the second plurality of arms of the first conductor and with the second plurality of arms, of the second conductor. | 04-09-2015 |
20150116174 | MULTIPLE-INPUT MULTIPLE-OUTPUT ANTENNA AND BROADBAND DIPOLE RADIATING ELEMENT THEREFORE - An antenna, including a ground plane, a dielectric substrate formed on the ground plane, a broadband dual-polarized dipole radiating element located on the dielectric substrate, a horizontally polarized dipole radiating element located on the dielectric substrate adjacent to the broadband dual-polarized dipole radiating element and having a projection parallel to a first axis, which first axis intersects the broadband dual-polarized dipole radiating element, a vertically polarized dipole radiating element located on the dielectric substrate adjacent to the broadband dual-polarized dipole radiating element and having a projection parallel to a second axis, which second axis intersects the broadband dual-polarized dipole radiating element and is orthogonal to the first axis and a feed network for feeding the broadband dual-polarized, vertically and horizontally polarized dipole radiating elements. | 04-30-2015 |
20150295325 | WIDEBAND BOW TIE ANTENNA - A wideband bow tie antenna includes a guiding unit, a radiating unit, and a reflecting unit. The radiating unit is configured between the guiding unit and the reflecting unit. The radiating unit includes a guiding substrate and a guiding patch configured on the guiding substrate. The radiating unit includes a radiating substrate and a first bow tie radiator which is configured on the radiating substrate and coupled with the guiding patch. The first bow tie radiator includes two single radiating portions which are symmetrically configured to each other. The reflecting unit includes a reflecting substrate and a loop reflecting patch which are configured on the reflecting substrate and coupled with the first bow tie radiator. | 10-15-2015 |
20160134026 | Antenna radiating element and antenna - The present invention discloses an antenna radiating element and an antenna, where the antenna radiating element includes a pair of crosswise disposed dipoles and parasitic element assemblies; the parasitic element assembly is disposed in an included angle formed by two neighboring dipole arms of the crosswise disposed dipoles; the parasitic element assembly is fastened to the dipole; and a radiation signal transmitted by the dipole is reflected and converged by using the parasitic element assembly. In embodiments of the present invention, the antenna radiating element has a very simple structure, may be directly formed by sheet metal parts, and is convenient to process and manufacture. Also, the parasitic element assembly achieves an effect of reducing a volume of the entire antenna, and therefore both production costs and maintenance costs are reduced. | 05-12-2016 |
20160190708 | Antenna device - An antenna array for receiving and transmitting signals may include a printed circuit board, a first dual frequency band element for transmitting and receiving the signals being mounted on a first end of the printed circuit board and a second dual frequency band element for transmitting and receiving the signals being mounted on a second end of the printed circuit board. | 06-30-2016 |
20160254594 | ULTRA-WIDEBAND DUAL-BAND CELLULAR BASESTATION ANTENNA | 09-01-2016 |
343798000 | Plural groups (e.g., stacked) | 23 |
20090066601 | CROSS DIPOLE, CROSS DIPOLE MODULE, ARRAY ANTENNA, AND MULTIPLE INPUT MULTIPLE OUTPUT ANTENNA - The present invention relates to a cross dipole including a plurality of dipole elements respectively corresponding to a plurality of frequency bands and reconfiguring the plurality of frequency bands. A cross dipole module includes a circuit for controlling a signal of the cross dipole according the cross dipole and an external control signal. An array antenna includes a plurality of cross dipole modules arranged in one dimension or two dimensions. A multiple input multiple output antenna includes a plurality of array antennas for independently operating and an indoor supporting system for respectively applying a control signal to the plurality of array antennas, and reconfigures a distance between the neighboring array antennas. | 03-12-2009 |
20100007572 | DUAL-POLARIZED PHASED ARRAY ANTENNA WITH VERTICAL FEATURES TO ELIMINATE SCAN BLINDNESS - A phased array antenna includes a substrate and an array of antenna unit cells formed on the substrate. Each antenna unit cell comprises first and second sets of coupled dipole antenna elements that are orthogonal to each other and provide dual polarization. A member is positioned at each antenna unit cell between each of the dipole antenna elements in each polarization to eliminate scan blindness without reducing broadside (non-scanned) array gain. | 01-14-2010 |
20100134374 | Phased-Array Antenna Panel for a Super Economical Broadcast System - A phased-array antenna panel for a super economical broadcast system is provided. The phased-array antenna panel system includes an antenna panel support member, a first pair of striplines and a second pair of striplines. The antenna panel support member includes a front reflector surface to support first and second columns of constantly-spaced, crossed-dipole radiators, a first pair of signal ground cavities disposed beneath the first column of crossed-dipole radiators, a second pair of signal ground cavities disposed beneath the second column of crossed-dipole radiators, and a rear surface including first and second pairs of signal distribution cable connectors. The first pair of striplines are respectively disposed within the first pair of signal ground cavities and are coupled to the first pair of signal distribution connectors and the first column of crossed-dipole radiators. The second pair of striplines are respectively disposed within the second pair of signal ground cavities and are coupled to the second pair of signal distribution connectors and the second column of crossed-dipole radiators. | 06-03-2010 |
20100171675 | DUAL-POLARIZED RADIATING ELEMENT, DUAL-BAND DUAL-POLARIZED ANTENNA ASSEMBLY AND DUAL-POLARIZED ANTENNA ARRAY - The invention refers to a dual-polarized radiating element ( | 07-08-2010 |
20110175782 | DUAL-BAND DUAL-POLARIZED ANTENNA OF BASE STATION FOR MOBILE COMMUNICATION - Disclosed is a dual-band dual-polarized antenna of a base station for mobile communication, the dual-band dual-polarized antenna including: a reflection plate; one or more first radiating element modules formed on the reflection plate to transmit and receive two linear orthogonal polarized waves for a first frequency band, the one or more first radiating element modules including a plurality of dipoles installed in a general ‘X’ shape; and one or more second radiating element modules for a second frequency band, which are interleaved between the first radiating element modules on the reflection. | 07-21-2011 |
20120133567 | CROSS POLARIZATION MULTIBAND ANTENNA - The subject of this invention is a multiband antenna radiating element comprising a first pair of cross-polarization dipoles each of which comprises two collinear conducting arms, whereby the four conducting arms define a first radiating plane corresponding to a low frequency band. The radiating element also consists of at least a second pair of cross-polarization dipoles each of which comprises two collinear conducting arms, whereby the four conducting arms define a second radiating plan corresponding to a higher frequency band. The first and second radiating planes are parallel; the second radiating plane is positioned above the first from which it is electrically insulated and the surface of the first radiating plane covering the conducting arms of the first pair of dipoles is larger than the surface of the second radiating plane covering the conducting arms of the second pair of dipoles. The first radiating plane can be defined by a first pair of dual cross-polarization dipoles or one printed circuit dipole and the second radiating plane can be defined by a second pair of dipoles chosen from cross dipoles, butterfly dipoles and printed circuit dipoles. | 05-31-2012 |
20120274531 | ANTENNA ARRAY - A dipole array assembly, is disclosed which includes a plurality of poles arranged in a two-dimensional array to provide a plurality of dipoles, each pole being shaped such that adjacent edges of neighbouring poles that are from respective neighbouring dipoles are relatively long and relatively close to each other compared to the dimensions of the poles, thereby increasing coupling between different dipoles. A feed arrangement is provided in a plane that is at an angle to the plane of the dipoles wherein one or more baluns are integrated in the feed arrangement. Dual polarised operation can be performed independently between the two polarisations. | 11-01-2012 |
20120280879 | Tri-Pole Antenna Element And Antenna Array - A dual polarized base station antenna is provided, including a reflector having a longitudinal axis and an array of tri-pole elements disposed on the reflector. Each tri-pole element has a first side arm and a second side arm. The tri-pole element also includes a center arm which is approximately perpendicular to the first and second side arms. The tri-pole elements are oriented such that either the side arms or the center arm are parallel to the longitudinal axis of the reflector. The antenna further includes a feed network having a first signal path coupled to the first arms of the tri-pole elements and a second signal path coupled to the second anus of the tri-pole elements. In this example, the array of tri-pole elements produces a cross-polarized beam at +45 degrees and −45 degrees from the longitudinal axis. Tri-pole arrays may be used in a multiband antenna. | 11-08-2012 |
20130069840 | RADAR ANTENNA - A radar or other microwave antenna comprises at least one antenna element, a feed structure for the element extending to the antenna element substantially normally thereto through a dielectric substrate, and characterised in that the dielectric substrate is anisotropic whereby to reduce unwanted common-mode currents in the feed structure. The anisotropy may be provided by elongate conductive elements distributed through the dielectric substrate and aligned with their longitudinal axes parallel to the feed structure. | 03-21-2013 |
20130214983 | COMPACT MULTI-COLUMN ANTENNA - The invention provides an antenna arrangement having an operating frequency band with a mean wavelength λ and comprising at least two columns of antenna elements with at least two antenna elements in each column. Each column of antenna elements extends above a separate elongated column ground plane with a column separation defined as a distance between mid-points of neighbouring column ground planes. The antenna elements in each column are located along a column axis pointing in a longitudinal direction of the column ground plane wherein all column separations are below 0.9λ and wherein a parasitic element extends above at least one antenna element in each column. Parameters of the parasitic element are adapted for proper excitation thus achieving a reduced beamwidth for each of said columns of antennas. The invention also provides a method to manufacture the antenna arrangement. | 08-22-2013 |
20130229321 | ANTENNA FABRICATION - In one embodiment a method to form a load bearing antenna aperture comprises forming a honeycomb core structure having a plurality of wall sections, the wall sections including electromagnetic radiating elements, and wherein lower surfaces of the wall sections defines a first surface and upper surfaces of the wall sections define a second surface, positioning a back skin to the first surface of the honeycomb core structure with an adhesive layer which comprises a layer of adhesive film and a paste adhesive disposed on the layer of adhesive film. Other embodiments are disclosed. | 09-05-2013 |
20140028516 | DUAL-POLARIZED RADIATING ELEMENT WITH ENHANCED ISOLATION FOR USE IN ANTENNA SYSTEM - A dual-polarized radiating element having a first dipole and a second dipole attached to a reflector. Each conductive first half dipole and each conductive second half dipole of each of the first and second dipoles having a first surface and an opposite second surface. In one embodiment, the first surface of each first half dipole extends offset to the first surface of the respective second half dipole. Each of dipoles includes a conductive element having a first side portion spaced apart from and secured to the first surface of the respective first half dipole and a second side portion spaced apart from and secured to the first surface of the respective second half dipole, and is connectible to an input signal so as to be capable of being electromagnetically coupled to the first and second dipoles. | 01-30-2014 |
20140035792 | Microstrip-Fed Crossed Dipole Antenna - A panel antenna includes a microstrip-fed radiator array, each radiator being a crossed dipole, with the monopoles of the dipole being loops that are electrically closed and hybrid coupled to the adjacent loops within the radiator. The loops are spaced away from a ground plane by approximately a quarter wavelength, using support straps that function as mechanical supports and couplers from the microstrip feed. Each four loops and four support straps and a base can be cast as a single piece, for example, since the shorted ends of the support straps are a quarter wavelength away from the loops. The feed system uses asymmetric microstrip power dividers to provide branch feed to the dipoles. Coupling between the feed and the loops uses the support straps and terminates in a stub that defines the impedance. | 02-06-2014 |
20140062822 | DUAL FREQUENCY COUPLING FEED ANTENNA AND ADJUSTABLE WAVE BEAM MODULE USING THE ANTENNA - A dual frequency coupling feed antenna includes a substrate. There are an upper dipole radiative conductor, a lower dipole radiative conductor, a ground line and a ground reflective conductor disposed on the second surface of the substrate and the two dipole radiative conductors are not electrically connected to each other. The first surface of the substrate has a coupling conductor, a signal line and a feed-matching conductor. The coupling conductor extends parallel to the upper dipole radiative conductor. The ground reflective conductor is located at a side-edge of the dipole radiative conductor and the feed-matching conductor is located on the path of the signal line. | 03-06-2014 |
20140111396 | Dual Band Interleaved Phased Array Antenna - The height of crossed-dipoles antenna elements can be reduced by including an additional bend/segment in the feed-line and/or tuning-stub of the antenna dipole having the upper slot. The extra bend allows the crossed-dipoles antenna element to be shortened by as much as twenty percent without reducing the feed-line length. Additionally, the height of crossed-dipoles antenna elements can be reduced by shaping a winged portion of the balun-fed dipoles to match the contour of a radome contour, which allows the crossed-dipoles antenna element to accommodate a shallower radome and achieve a thinner antenna module. Additionally, the height of crossed-dipoles antenna elements can be reduced by positioning periodic structures around the base of low-band radiating elements to provide artificial magnetic conductor (AMC) functionality, which enables constructive interference between reflected and non-reflected signals at profile spacings of less than one-quarter wavelength. | 04-24-2014 |
20140218253 | STACKED BOWTIE RADIATOR WITH INTEGRATED BALUN - A turnstile antenna element and balun for use in a phased array are described. The antenna includes a plurality of stacked bowtie radiators. Each stacked bowtie radiator includes a driven conductor and a passive conductor separated by a dielectric. The balun includes a central member having dielectric slabs symmetrically disposed on external surfaces thereof. At least one end of the balun is provided having a shape such that conductors on the dielectric slabs of the balun can be coupled to the driven radiator conductors. | 08-07-2014 |
20140240188 | DUAL-POLARIZED DIPOLE ANTENNA AND CRUCIFORM COUPLING ELEMENT THEREFORE - A dual-polarized dipole antenna including a first pair of dipole arms resonating in a first frequency band, a second pair of dipole arms intersecting the first pair of dipole arms and arranged orthogonally with respect to the first pair of dipole arms, the second pair of dipole arms resonating in the first frequency band and at least one conductive cruciform element mounted on the first and second pairs of dipole arms and resonating in a second frequency band. | 08-28-2014 |
20140327591 | WIDEBAND ANTENNA - Wideband antennas, a wideband antenna assembly and a method are disclosed. One wideband antenna comprises at least one dipole arm base ( | 11-06-2014 |
20140368395 | CROSSPOLAR MULTIBAND PANEL ANTENNA - The object of the present invention is a crosspolar multiband panel antenna comprising, within a single chassis, at least two antenna arrays operating within different frequency bands, each antenna array comprising at least two cross-polarization radiating elements separated by a distance inter-elements, each radiating element comprising a first polarization and a second polarization, the second polarization being orthogonal to the first polarization. The first polarization and the second polarization of each antenna array are physically separated by a distance equal to or greater than the distance inter-elements. The first polarizations and the second polarizations of each antenna array being respectively separated by one another by the distance inter-elements. | 12-18-2014 |
20150070234 | High-Band Radiators In Moats For Basestation Antennas - A high-band radiator of an ultra-wideband dual-band basestation antenna is disclosed. The high-band radiator comprises at least one dipole, a feed stalk, and a tubular body made of conductive material and having an annular flange. Each dipole comprises two dipole arms made of conductive material. The feed stalk feeds the dipole and comprises a non-conductive dielectric substrate body and conductors formed on the substrate body to function as a balun transformer. The feed stalk is connected with the dipole at one end and has at least one feed connector at the other, with the conductors coupled there-between. The tubular body is adapted for electrical connection through the annular flange to the ground plane at the open end; the body is short-circuited at the other end to define an internal cavity of the tubular body. At least a portion of the feed stalk is disposed within the tubular body. | 03-12-2015 |
20150102971 | Bi-Polarized Broadband Annular Radiation Unit and Array Antenna - A bi-polarized broadband annular radiation unit, for being installed on a metal reflective plate thus constituting a communication antenna and defining an annular construction by two pairs of orthogonally polarized dipoles, includes two pairs of orthogonally polarized dipoles, each dipole comprising two symmetrical unit arms of a single line sheet shape, one end of a unit arm being facing to a corresponding end of the other unit arm, and a distal end of each unit arm of at least one pair of dipoles is provided with a loading line; and a plurality of balun arms feeding power to and supporting respective dipoles, each balun arm including two parallel balun lines, and the top ends of the two balun lines being connected with corresponding ends of the two unit arms of a corresponding dipole. Each unit arm and the balun line and/or loading line connected to the same unit arm are made by sheet metal stamping forming process or casting process. | 04-16-2015 |
20160064830 | ALFORD LOOP ANTENNAS WITH PARASITIC ELEMENTS - According to one embodiment of the invention, a network device comprises a plurality of antennas comprising a first antenna, wherein the first antenna comprises: a first set of one or more elements that form an Alford loop and that is configured for electrical excitation via a current transmitted over a conductive medium from a signal source and a second set of one or more elements that is configured for electromagnetic induction without contact with the conductive medium from the signal source. | 03-03-2016 |
20160064831 | Directional Array for Near Vertical Incidence Skywave Antenna - An antenna array comprising: four dipole antennas configured to function together as a directional, near vertical incidence skywave (NVIS) antenna with reduced side lobes, wherein each dipole antenna comprises two conductive elements and a feed point disposed between the two conductive elements, wherein the conductive elements of each of the four dipole antennas are disposed in an x-y plane of an x-y-z mutually orthogonal axes coordinate system, and wherein the conductive elements are substantially parallel with the x-axis and the x-y plane is substantially parallel with a ground plane; and wherein the feed points of the four dipole antennas are positioned on the x-y plane at approximately (x, 0), (−x, 0), (0, y), and (0, −y), and wherein the x-y plane is separated from the ground plane by a distance h that is less than or equal to 1/10 the wavelength (λ) of an operating frequency. | 03-03-2016 |