| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 333206000 | Coaxial | 18 |
| 20090085694 | Low Pass Metal Powder Filter - A low pass filter having a coaxial structure of an inner conductor, an outer conductor and a metal powder composite interposed between the inner and outer conductor. Embodiments include a 50Ω characteristic impedance. The metal powder can be bronze, copper or other metals, mixed in an epoxy carrier. | 04-02-2009 |
| 20090261924 | Cavity filter coupling system - The elliptical response bandpass filter according to the invention comprises a plurality N of cavities connected in series by means of in-phase coupling loops; the first cavity is in addition connected to the last by a complementary phase-inversion coupling loop in order to generate transmission zeros at determined frequencies. | 10-22-2009 |
| 20100001815 | FILTER FOR ELECTRONIC SIGNALS AND METHOD FOR MANUFACTURING IT - A dielectric body is provided with at least two coupling structures for coupling in and coupling out electronic signals, and one or more conductors on surface portions of the body. An outer surface of the body includes one or more indentations. The coupling structure includes a coupling conductor for signal input and/or output, and in relation to an end portion of the conductor a coupling hole extending from the first surface and/or from a second surface opposite the first surface into the body. | 01-07-2010 |
| 20100127801 | LOW PASS FILTER WITH EMBEDDED RESONATOR - An embedded resonator sharpens the frequency characteristics of a coaxial low pass filter. The resonator introduces finite transmission zeros to the response of the low pass filter, thereby suppressing spurious modes occurring just above the operating frequency. Two parameters are used to tune the operation of the embedded resonator. The length of an insert into the filter's transmission line substantially controls the resonant frequency, and the gap width substantially controls the coupling of the embedded resonator to the low pass filter. | 05-27-2010 |
| 20100277260 | FILTER ARRANGEMENT - An improved filter arrangement is characterised by the following features:
| 11-04-2010 |
| 20120133457 | HIGH FREQUENCY FILTER - The invention relates to an improved high frequency filter (high pass filter) that is characterized by the following features: in addition to the at least both capacitively coupled inner conductor front faces ( | 05-31-2012 |
| 20120249267 | RADIO FREQUENCY FILTER STABILIZATION - An assembly and method relates to stabilizing a radio frequency (RF) filter with respect to a housing. The assembly can include a filter component; a housing having a groove to receive the filter component; a cover mounted to the housing to cover the groove; and an elastomeric element disposed between the cover and the filter. The elastomeric element may be one or more tubular pieces. | 10-04-2012 |
| 20130033341 | FILTER DEVICE - The present invention relates to a filter device, the filter device includes a housing provided with a through-hole; and a filter structure includes a signal line; a wave filter connected to the signal line, the size of the periphery of the wave filter smaller than the diameter of the through-hole; a connecter connected to one end of the signal line and connected electrically with the wave filter; wherein the filter structure is arranged from the outside of the housing through the through-hole correspondingly, so that the signal line and the wave filter are arranged at the inside of the housing and the connecter is fixed at the through-hole. Hence, the filter structure is locked and fixed optionally from the outside or from the inside of the housing to increase the convenience of the whole assembly. | 02-07-2013 |
| 20140055215 | DISTRIBUTED ELEMENT FILTERS FOR ULTRA-BROADBAND COMMUNICATIONS - A method for constructing a radio frequency filter ( | 02-27-2014 |
| 20140266513 | COAXIAL TRANSMISSION LINE SLOT FILTER WITH ABSORPTIVE MATRIX - A filter is provided and includes potting material formed into a body defining a through-hole. The body includes first and second opposing faces and a sidewall extending between the first and second opposing faces. The sidewall is formed to define first and second openings at opposite ends of the through-hole, first angles at an interface between the sidewall and the first face and second angles, which complement the first angles, at an interface between the sidewall and the second face. | 09-18-2014 |
| 20150303543 | RADIO-FREQUENCY BLOCKING FILTER - A radio-frequency filter comprises an input terminal and an output terminal. A signal line is galvanically connected or capacitively coupled firstly to the input terminal and secondly to the output terminal. The signal line, with the formation of a capacitive inner conductor and/or resonator coupling, runs past the relevant inner conductor through the resonators of the radio-frequency blocking filter. The signal line has at least one galvanic isolation location in the form of a capacitive isolation location. The capacitive isolation location is spaced apart from the inner conductors and capacitively coupled thereto. The resonators and/or the inner conductors capacitively coupled to the signal line. | 10-22-2015 |
| 20160093938 | CERAMIC FILTER USING STEPPED IMPEDANCE RESONATORS - Disclosed are embodiments of ceramic radiofrequency filters advantageous as RF components. The ceramic filters can include a ceramic stepped impedance resonator, wherein the inner diameter of the ceramic stepped impedance resonator can vary from one end to another end. The inner diameter can be, for example, tapered, sectioned, or stair-stepped in order to provide different impedances in the ceramic resonator. | 03-31-2016 |
| 333207000 | Tunable | 6 |
| 20080258847 | COMPOSITE RESONATOR FOR USE IN TUNABLE OR FIXED FILTERS - A fixed or tunable resonator. The resonator includes an inner conductor, a hollow outer conductor, and a hollow insulating layer. The hollow outer conductor forms a first inner space. The hollow insulating layer is formed from an outer soft dielectric layer, an inner soft dielectric layer, and a ceramic layer disposed between the soft dielectric layers. The hollow insulating layer includes a second inner space formed by the inner soft dielectric layer. The inner conductor is disposed within the second inner space of the hollow insulating layer, and the hollow insulating layer is disposed within the first inner space of the hollow outer conductor. | 10-23-2008 |
| 20090002103 | Tunable lambda/4 filter subassembly - The invention relates to a tunable λ/4-filter subassembly ( | 01-01-2009 |
| 20130271243 | TUNABLE HIGH-FREQUENCY FILTER - The invention discloses a high-frequency filter in coaxial design which allows a simple option for tuning resonators contained in the high-frequency filter. In order to tune the resonator(s), a first tuning element is mechanically anchored in the second terminating wall such that the element is rotationally fixed and the axial length thereof cannot be varied, and a second tuning element, the position of which can be varied, is provided in the longitudinal opening of the inner conductor, wherein the second tuning element consists of a dielectric material, or comprises dielectric material, at least in the region facing the second outside wall, wherein the axial position of the second tuning element can be varied in the spacing area between the inside face of the inner conductor and the first tuning element. The second tuning element can be accessed and/or actuated from the outer side of the first terminating wall to effect a variation of the axial position. | 10-17-2013 |
| 20140132372 | INTERMODULATION DISTORTION REDUCTION SYSTEM USING INSULATED TUNING ELEMENTS - A coaxial cavity resonator filter has a hollow cavity and a post having desired dimensions for achieving desired filter characteristics. A tuning element is supported within a metallic opening and is configured to electromagnetically interact with the post. The tuning element has a conductive core element where the orientation of the tuning element with the cavity is adjusted so as to achieve the desired filter characteristic. An insulator is configured to cover a portion of the conductive core element of the tuning element, at a location where the tuning element and the metallic opening interact. A portion of the insulator is threaded so as to allow the conductive core element vary its orientation within the cavity without contacting the metallic opening. | 05-15-2014 |
| 20160006096 | FILTERING DEVICE AND METHOD FOR ADJUSTING FILTER CHARACTERISTIC - A filtering device includes at least one dielectric resonant element, which includes a dielectric block, an outer conductor, and an inner conductor, a terminal disposed in a through hole of the dielectric resonant element from a front surface, a plate-shaped circuit element electrically coupled with the at least one dielectric resonant element via the terminal, and a substrate on which the at last one dielectric resonant element and the plate-shaped circuit element are mounted. The outer conductor is disposed so as to cover the back surface besides the peripheral surface of the dielectric block. The first end surface of the dielectric block includes a first electrode-free portion that electrically isolates the inner conductor from the outer conductor, and a second electrode-free portion that electrically isolates the inner conductor from the outer conductor. | 01-07-2016 |
| 20160190669 | INTERMODULATION DISTORTION REDUCTION SYSTEM USING INSULATED TUNING ELEMENTS - A coaxial cavity resonator filter has a hollow cavity and a post having desired dimensions for achieving desired filter characteristics. A tuning element is supported within a metallic opening and is configured to electromagnetically interact with the post. The tuning element has a conductive core element where the orientation of the tuning element with the cavity is adjusted so as to achieve the desired filter characteristic. An insulator is configured to cover a portion of the conductive core element of the tuning element, at a location where the tuning element and the metallic opening interact. A portion of the insulator is threaded so as to allow the conductive core element vary its orientation within the cavity without contacting the metallic opening. | 06-30-2016 |
