| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 342375000 | With a delay line (e.g., serpentine transmission line, frequency scanning) | 22 |
| 20080252524 | Path-Sharing Transceiver Architecture for Antenna Arrays - A path sharing transceiver array architecture is disclosed. A plurality of channels are linked to antennas of an array for transmitting and receiving wireless signals that are offset in one of phase or time relative to one another. Each channel is associated with a delay element. In the receiving case, an offset signal is received at a first channel, processed, and shifted by a first delay element. The resulting signal is combined with the processed signal of a second, adjacent channel where a phase or time delayed signal is received. The combined signal is then shifted by a second delay element to produce a net signal. The first delay element is used to generate a shifted signal for both the first and second channel. The architecture can be extended to another number of channels. | 10-16-2008 |
| 20090002236 | Electro optical scanning phased array antenna for pulsed operation - An electro optical scanning phased array antenna having a laser which generates a pulsed output. A microwave source has an output which amplitude modulates the optical output from the laser through an optical modulator. An optical loop circuit has an input connected to an output from the optical modulator and a variable time delay element. The optical loop circuit generates a plurality of modulated optical pulses at equidistantly spaced time intervals from each other at an output from the loop circuit. These time intervals vary as a function of the variable time delay element and a control circuit controls the time delay attributable to the variable time delay element. An antenna array includes end elements while a circuit converts the optical output pulses from the optical loop circuit to radio frequency signals electrically connected to the elements of the antenna array. | 01-01-2009 |
| 20090027268 | Multi Beam Photonic Beamformer - A true time delay beamformer for RF/microwave phased array antenna systems using multiple laser sources, optical modulators to convert the electrical signal to a modulated optical signal, standard optical fiber for creating time delays, dispersive optical fiber for creating delays, optical splitting and/or switching section, photodetectors to convert the modulated optical signal to an electrical signal, and a signal combining section. The true time delay beamformer has the capability to create multiple simultaneous RF/microwave antenna beams. One (more lasers) is used to source one (or more) wavelengths of light to the optical modulator. The signal from one (or more) antenna elements drive the optical modulator. The light from the optical modulator passes through the standard optical fibers and/or the dispersive optical fibers to create time delay variation for one optical modulator relative to another allowing for the formation of RF/microwave beams. Fixed location RF/microwave beams can be generated by a static network of standard and/or dispersive optical delay fibers. Steering of the location of the RF/microwave beams can be accomplished by an optical switching mechanism which could be based on MEMs and/or wavelength routing based switching. Finally, all the signals for a RF/microwave beam are summed to form a single output. The summing can occur either optically before the photodetectors and/or electrically after the photodetectors. | 01-29-2009 |
| 20090040107 | SMART ANTENNA SUBSYSTEM - The present invention provides several smart antenna devices and methods. The devices and methods incorporate a programmable delay element into each RF pathway, which enables smart antennas to receive not only narrow band signals but also ultra-wide band signals at low cost and low power consumption, while in a highly reliable fashion. The devices and methods therefore enable a low complexity smart antenna receiver as part of a highly reliable, low cost and low power sensor network. | 02-12-2009 |
| 20090195454 | Soldier/ground vehicle passive ranging system utilizing compact spatiotemporal processor - A method of two-source passive ranging comprising the steps of determining the coordinates of a first position and a second position wherein a first soldier or ground vehicle is located at the first position and a second soldier or ground vehicle is located at the second position; determining individual angles between said first and second positions and a radio frequency source; and using individual single-angle accuracy values to estimate the range from the first and second positions to the radio frequency source. | 08-06-2009 |
| 20100277371 | TRUE TIME DELAY SYSTEMS WITH ARRAY ANTENNA FOR THE SPATIALLY CHANGEABLE RADIATION PATTERN FOR MAXIMUM POWER ULTRA-WIDEBAND PULSES - An HPEM module ( | 11-04-2010 |
| 20110050499 | SENSING DEVICE HAVING MULTI BEAM ANTENNA ARRAY - Provided is a sensing device having a multi beam antenna array. The sensing device includes an antenna array including a plurality of antennas, a plurality of low noise amplifiers respectively connected to the antennas to amplify radio frequency signals received from the respective antennas, a delay line box including a plurality of delay lines, each delay line delaying the signals amplified by the low noise amplifiers for a predetermined time, and a detector detecting the output signals of the delay ling box. | 03-03-2011 |
| 20110084880 | ARRAY ANTENNA - Disclosed is an electronic scanning array antenna which can be used as a UWB radar having an occupied band of not less than 500 MHz. An impulse generator is connected to each of a plurality of antenna elements constituting the electronic scanning array antenna, and a transmission trigger time to each of the impulse generators connected to the antenna elements is changed, whereby the phase of radio waves emitted from an antenna is equivalently changed. Moreover, a transmission trigger repletion interval is changed to thereby control a direction of a beam emitted from the array antenna. As means of changing a transmission trigger timing to each of the impulse generators connected to the antenna elements, a method of changing a frequency of a transmission trigger pulse and a method of changing a pulse position are adopted. | 04-14-2011 |
| 20110205121 | METHOD OF DETERMINING REAL TIME LOCATION OF REFLECTING OBJECTS AND SYSTEM THEREOF - There are provided a method of determining real time location of a reflecting object and a system thereof. The method comprises: a) providing initial internal delays of said RF units, and providing initial direct signal time of arrivals characterizing direct links between RF units corresponding to said operational links; b) transmitting operational signals, and measuring real time of arrivals characterizing operational links; c) transmitting direct signals via direct links corresponding to said operational links, and measuring real time direct signal time of arrivals characterizing said direct links; d) calculating, separately for each of the operational links, cumulative real time internal delays in RF units, said calculating based on measured real time direct signal time of arrival in corresponding direct link, respective initial direct signal time of arrival and initial internal delays of respective RF units; e) calculating relative delays between the operational links and aligning the respective links; and f) determining the real time location of the object, wherein operational signal and corresponding direct signal are constituted by different lobe components of a same signal transmitted between respective RF units. | 08-25-2011 |
| 20120127034 | Phased Array Antenna with Reduced Component Count - A phased-array antenna with electronic beam steering that provide simultaneous operation at transmit and receive frequencies and polarization control is disclosed. The antenna architecture reduces the number of beam steering and polarization control devices used compared to conventional array designs. The extremely compact, low-loss, and largely passive design reduces the number of active amplifiers needed using micro-electromechanical systems MEMs and advanced micro-coaxial circuits. | 05-24-2012 |
| 20120162011 | Method And Apparatus For Transmitting And Receiving Phase-Controlled Radiofrequency Signals - A method of beamforming a radiofrequency array having multiple antenna elements is provided. The method includes transmitting two or more sub-beams of a modulated light beam through a switched fabric, using wavelength switching to designate a respective path through the switched fabric for each sub-beam, and converting each sub-beam to a driving signal for one or more of the antenna elements or to a received signal from one or more of the antenna elements. Each path through the switched fabric has a selected cumulative true time delay. | 06-28-2012 |
| 20130169483 | PHOTONIC SYSTEM AND METHOD FOR TUNABLE BEAMFORMING OF THE ELECTRIC FIELD RADIATED BY A PHASED ARRAY ANTENNA - This invention discloses a photonic system to beamform the electric field yield by a phased array antenna. The system function relies on a photonic tunable delay line, which consists on an optical Mach-Zehnder interferometer with a predefined time delay difference between arms. The time delay is tuned by adjusting the coupling ratio between the power applied to each one of the interferometer's delay lines. Three embodiments are proposed, wherein one of them just uses a single delay line and a single monchromatic light source, independently of the quantity of the array elementary antennas. | 07-04-2013 |
| 20130194134 | ELECTRONICALLY-STEERED KU-BAND PHASED ARRAY ANTENNA COMPRISING AN INTEGRATED PHOTONIC BEAMFORMER - A phased-array antenna that includes a photonic beamformer is disclosed. In some embodiments, a front stage of electrical-domain processing applies a 16-to-1 signal-combination ratio, a single stage of photonic beamforming applies a 4-to-1 signal-combination ratio, and a passive, electrical-domain, signal combiner applies a 32-to-1 signal-combination ratio. | 08-01-2013 |
| 20130241771 | FRACTIONAL BEAM FORMING NETWORK ANTENNA - A fractional beam forming network antenna includes a beam forming network and a plurality of antennas. The network includes input ports, output ports, and at least one delay device. The beam forming network couples input ports to the output ports through the at least one delay device. The antennas are vertically disposed relative to each other, and coupled to the output ports. At least two of the antennas include a different elevation tilt and/or azimuth rotation relative to each other. A method of fractional beam forming is provided, which includes coupling, using a beam forming network, input ports to output ports through at least one delay device; disposing a plurality of antennas vertically relative to each other; coupling the antennas to the output ports; and rotating at least two of the antennas in different elevation and/or different azimuth relative to each other. | 09-19-2013 |
| 20130241772 | INTEGRATED PHASE-SHIFTING-AND-COMBINING CIRCUITRY TO SUPPORT MULTIPLE ANTENNAS - The disclosed embodiments generally relate to techniques for processing signals received from multiple antennas. More specifically, the disclosed embodiments relate to a system that uses an integrated phase-shifting-and-combining circuit to process signals received from multiple antenna elements. This circuit applies a specified phase shift to the input signals, and combines the phase-shifted input signals to produce an output signal. In some embodiments, the integrated phase-shifting-and-combining circuit uses a current-steering mechanism to perform the phase-shifting-and-combining operations. This current-steering mechanism operates by converting the input signals into associated currents, and then steering each of the associated currents through multiple pathways which have different delays. Next, the currents from the multiple pathways for the associated currents are combined to produce the output signal. During this process, while steering each of the associated currents through multiple pathways to achieve different phase shifts, complementary impedance changes through the multiple pathways cause the aggregate impedance at the output to remain substantially constant. | 09-19-2013 |
| 20140062786 | SENSING DEVICE HAVING MULTI BEAM ANTENNA ARRAY - Provided is a sensing device having a multi beam antenna array. The sensing device includes an antenna array including a plurality of antennas, a plurality of low noise amplifiers respectively connected to the antennas to amplify radio frequency signals received from the respective antennas, a delay line box including a plurality of delay lines, each delay line delaying the signals amplified by the low noise amplifiers for a predetermined time, and a detector detecting the output signals of the delay ling box. | 03-06-2014 |
| 20140145880 | Modular Parallel Beamforming System and Associated Methods - A beamforming system comprising a plurality of modular beamformers is provided. The modular beamformers may be operatively coupled to each other (for example, in parallel). Each modular beamformer may comprise a plurality of signal generation units configured to generate signals. Each modular beamformer may further comprise a plurality of delaying units configured to receive the signals and adaptively delay output of the signals. Each modular beamformer may further comprise a plurality of multipliers assigned to the delaying units to generate conditioned signals by adaptively applying weights to the signals output by the plurality of delaying units. Each modular beamformer may further comprise a plurality of summers configured to combine the conditioned signals to generate a phased array output signal. | 05-29-2014 |
| 20140159959 | BODY-WORN PHASED-ARRAY ANTENNA - Several (in some cases many dozen) small antennae are integrated into or over a full body suit or clothing. These antennae preferably include an intra-suit or clothing wired connection to one or more small Ultra-Wide-Band (UWB) radios, e.g., in the 3-10 GHz range. In some cases, each antenna connection includes a variable delay, e.g., a few nanoseconds with picoseconds-scale resolution on the delays, thus allowing for the body-suit ensemble to act as a directional phased-array. One claim recites a radio wearable by a human comprising: a phased-array antenna including a plurality of antennae, the array being configured for wearing over or on a human body, the plurality of antennae provided for spatially positioning in multiple different regions over or on the human body; an RF radio; and a controller configured for: i) determining relative spatial position information for antennae within the phased-array antenna; and ii) using at least the relative spatial position information, controlling the radio to produce a directional UWB beam through the phased-array antenna. Another claim includes an antenna having a plurality of metamaterial elements. Of course, other claims and combinations are provided as well. | 06-12-2014 |
| 20140203969 | APPARATUS, SYSTEM AND METHOD OF STEERING AN ANTENNA ARRAY - Some demonstrative embodiments include apparatuses, devices systems and/or methods of steering an antenna array. For example, an apparatus may include a baseband processor including a plurality of baseband processing chains to process signals to be communicated via a plurality of antenna modules of an antenna array, wherein the baseband processing chains include a plurality of frequency domain delay modules, a frequency domain delay module of the delay modules is to apply a time delay to a signal to be communicated via an antenna module of the plurality of antenna modules. | 07-24-2014 |
| 20140320346 | DISTRIBUTED FEEDING CIRCUIT FOR ANTENNA BEAMFORMING ARRAY - A distributed feeding circuit for antenna beamforming array comprises a plurality N of inputs and a plurality N of outputs, wherein the said circuit is adapted for receiving, on at least one input, an electrical signal at a microwave frequency, modulated on at least one optical carrier, the circuit comprising at least one assembly of at least two optical dividers, two delay lines of length zero or substantially equal to a fraction of the wavelength of the signal at its microwave frequency and two means for combining two optical signals, the assembly being arranged and the delay lines being configured so that the theoretical transfer function of the circuit is an orthogonal matrix. | 10-30-2014 |
| 20150303567 | BEAM FORMING SYSTEM HAVING LINEAR SAMPLERS - A frequency conversion circuit having a plurality of N signal channels, each being fed an input signal and a train of pluses having a period T and a duty cycle T/N. Each channel includes: a sampler coupled the input signal and being responsive to sampling signals; and a controllable time delay for producing the train of sampling signals in response to the train of pulses, the time delay imparting a time delay to the pulses in accordance with a time delay command signal fed to the time delay. Each one of the sampling signals is produced by the time delay in each one of the channels with the period T and the duty cycle T/N with the sampling signals in one of the to trains of the sampling signals being delayed with respect to the sampling signals in another one of the trains the sampling signals a time T/N. | 10-22-2015 |
| 20170237164 | System and Method for a Beamformer | 08-17-2017 |
