Entries |
Document | Title | Date |
20080197944 | Waveguide and Attenuation Pole Waveguide Bandpass Filter - A waveguide and an attenuation pole waveguide bandpass filter with a simple structure without any additional structure such as a negative cross coupling between resonators. | 08-21-2008 |
20080315974 | MECHANICAL TEMPERATURE-COMPENSATING DEVICE FOR A PHASE-STABLE WAVEGUIDE - The present invention relates to a mechanical compensating device for a waveguide ( | 12-25-2008 |
20090058562 | Sensor, Method for Sensing, Measuring Device, Method for Measuring, Filter Component, Method for Adapting a Transfer Behavior of a Filter Component, Actuator System and Method for Controlling an Actuator Using a Sensor - A sensor for sensing a measurand is described, the sensor comprising a coplanar waveguide with a first surface and a second surface opposite to the first surface; a first structure with a first periodically varying dielectric characteristic, the first structure being arranged on the first surface of the coplanar waveguide; and a second structure with a second periodically varying dielectric characteristic, the second structure being arranged on the second surface of the coplanar waveguide, wherein a unit-cell of the structures with periodically varying dielectric characteristics is dimensioned such that the sensor has a frequency dependent transfer behavior with at least one transfer minimum, and wherein the sensor is implemented such that the measurand influences the first periodically varying dielectric characteristic of the first structure or the second periodically varying dielectric characteristic of the second structure or a relation between such first structure and second structure. | 03-05-2009 |
20090153272 | Waveguide Bandstop Filter - In a bandstop filter having an input port ( | 06-18-2009 |
20090201106 | HARMONIC SUPPRESSION RESONATOR, HARMONIC PROPAGATION BLOCKING FILTER, AND RADAR APPARATUS - A harmonic suppression resonator comprises a plurality of waveguide resonators that resonate in TE mode, in which harmonic suppression resonator, adjoining resonators are coupled via a plurality of coupling windows. Four coupling windows | 08-13-2009 |
20090231064 | WIDEBAND DIELECTRIC WAVEGUIDE FILTER - A waveguide-type dielectric filter suitable for wideband filter applications made of a metallized dielectric material is provided. The filter includes two or more mutually coupled resonators disposed in a longitudinal manner. The coupling between adjacent resonators is provided and adjusted by slots or through holes. The dielectric block is covered with metal ground coating with the exception of an uncoated area at the input and output that creates two contact pads on one surface of the dielectric block that are electrically isolated from the metal ground coating. Metallized blind holes are formed on the opposing surface of the dielectric block with respect to the contact pads. These blind holes effectively move the ground plane closer to the contact pad, which, in turn increases the coupling between the input and output resonators and external circuitry, which is essential for building wide bandwidth band pass filters. | 09-17-2009 |
20090237184 | FILTER WITH CROSSES - The invention relates to a process for the production of a microwave waveguide having a step of determining the zone or zones (z | 09-24-2009 |
20090289746 | TRIMMING OF WAVEGUIDE FILTERS - A waveguide filter comprising a matching means for matching the filter. The waveguide filter comprises a housing comprising a cavity having a predetermined first volume. The matching means is in the form of a volume element having a predetermined second volume being matched to the first volume forming a predetermined volume to volume ratio. The matching means is fitted into the cavity in a fixed non-adjustable manner in relationship to the housing. The invention refers also to a method for manufacturing of such a waveguide filter. | 11-26-2009 |
20100052822 | WAVEGUIDE, ANTENNA AND VEHICULAR RADAR APPARATUS - A waveguide, that is improved in size, costs, manufacturing and in durability, has a base having a mounting surface, and a plate member held on the mounting surface of the base for defining a waveguide in cooperation with the base. The mounting surface of the base is a curved surface defined by a sweep of a flexure curve of the plate member when it is loaded along a straight line. The plate member is attached to the base in such a manner that the plate member is pressed against and curved along the mounting surface, and that the plate member has a curvature direction edge portion extending in a curvature direction which is a general extension of the flexure curve and a sweep direction edge portion extending in a direction of the sweep of the curve. | 03-04-2010 |
20100141357 | Microwave Waveguide Filter with Non-Paraller Walls - The invention concerns a waveguide filter ( | 06-10-2010 |
20100201461 | Methods And Devices For Reducing Communication And Power Signal Leakages From Filter Assemblies - Novel assemblies for use in conjunction with RF shielded enclosures and the like include one or more RF power and signal filters connectibly inserted, attached to, or otherwise made a part of optimized cavities or receptacles formed within an optimized frame of the assembly. The use of optimized cavities or receptacles greatly reduces the number of exterior fasteners needed to connect filters to the assembly or the assembly to an enclosure which, in turn, reduces leakage. The optimized cavities or receptacles may be arranged in a compact manner in order to make optimum use of the available space on an optimized frame of the assembly. | 08-12-2010 |
20110001584 | RADIO-FREQUENCY FILTER DEVICE USING DIELECTRIC WAVEGUIDE WITH MULTIPLE RESONANT MODES - A radio-frequency filter device is provided with: a dielectric layer, a pair of conductive layers on both surfaces of the dielectric layer, shielding via conductors short-circuiting the conductive layers, a waveguide resonator portion formed by the shielding via conductors, another conductive layer on a surface of the dielectric layer, a pair of strip conductors on the dielectric layer, a pair of input and output coupling via conductors. The coupling via conductors pass through the conductive layer and the waveguide resonator portion without contacting with the conductive layer. One end of each coupling via conductor is short-circuited to the conductive layer, and the other end is connected to one strip conductor. By inputting a radio-frequency signal, fundamental and second-order resonant modes are excited in the waveguide resonator portion. | 01-06-2011 |
20110080236 | Miniature RF and Microwave Components and Methods for Fabricating Such Components - RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, antennae, transmission lines, filters, and/or other active or passive components. Components may include non-radiation-entry and non-radiation-exit channels that are useful in separating sacrificial materials from structural materials. Preferred formation processes use electrochemical fabrication techniques (e.g. including selective depositions, bulk depositions, etching operations and planarization operations) and post-deposition processes (e.g. selective etching operations and/or back filling operations). | 04-07-2011 |
20110199170 | Data Transmitting and/or Receiving Apparatus - A waveguide for transmission of data signals therealong. Data signals are typically received from and/or transmitted to a remote location and subsequently passed to or emitted from the apparatus which allows the data to be processed. The waveguide includes a channel which has a cross-sectional shape, the angular orientation of which is changed at least one point along the length of the same so as to provide a waveguide which is less sensitive to interferences. The waveguide, in one embodiment, can also include recessed portions and/or ridges along the length of the channel which ensures that the waveguide can be formed in a more reliable and controlled manner. | 08-18-2011 |
20110254641 | MULTI-BAND FILTER - A multi-band filter is disclosed which includes an input manifold; an output manifold; and a plurality of filters connected in parallel between the input manifold and output manifold. The filters have a first section proximal to the input manifold which is matched to the input manifold and a second section proximal to the output manifold which is matched to the output manifold. | 10-20-2011 |
20110309899 | ACCURATE MILLIMETER-WAVE ANTENNAS AND RELATED STRUCTURES - A method for accurately guiding millimeter-waves includes the following steps: Filtering millimeter-waves by applying the millimeter-waves at a first shape aperture of a filter waveguide, resulting in filtered millimeter-waves exiting a second shape aperture of the filter waveguide. Transporting the filtered millimeter-waves over a distance of between 9 centimeters and 25 centimeters, by applying the filtered millimeter-waves to an extruded waveguide having a length of between 9 centimeters and 25, and having a cavity featuring a cross-section that is accurate to within +/−0.05 millimeters throughout the length of the extruded waveguide, resulting in transported millimeter-waves. And producing, on a reflector, an illumination pattern that is accurate to a degree that allows conforming to a first level of radiation pattern accuracy, by applying the transported millimeter-waves at a focal point of the reflector. | 12-22-2011 |
20120007698 | Miniature RF and Microwave Components and Methods for Fabricating Such Components - RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, antennae, transmission lines, filters, and/or other active or passive components. Components may include non-radiation-entry and non-radiation-exit channels that are useful in separating sacrificial materials from structural materials. Preferred formation processes use electrochemical fabrication techniques (e.g. including selective depositions, bulk depositions, etching operations and planarization operations) and post-deposition processes (e.g. selective etching operations and/or back filling operations). | 01-12-2012 |
20120256707 | Systems and methods for millimeter-wave laminate structures - Various embodiments of millimeter-wave systems on a printed circuit board, including a microstrip, a probe, and an RF integrated circuit, as well as methods for manufacturing said systems. Various embodiments have holes extending through lamina in the PCB, thereby improving radiation propagation. Various embodiments have conductive cages created by multiple through-holes extending through lamina in the PCB, thereby increasing radiation propagation. The manufacture of such systems is easier and less expensive than the manufacture of current systems. | 10-11-2012 |
20130049901 | MULTI-MODE FILTER - A multi-mode cavity filter, comprising a resonator body of dielectric material capable of supporting at least two degenerate electromagnetic standing wave modes and having a face, and a conductive pattern on at least part of the face for coupling a radio frequency signal between the pattern and the resonator body. | 02-28-2013 |
20130049902 | MULTI-MODE FILTER - A multi-mode cavity filter, comprising: a dielectric resonator body incorporating a piece of dielectric material, the piece of dielectric material having a shape such that it can support at least a first resonant mode and a second substantially degenerate resonant mode; a conductive layer substantially covering the dielectric resonator body but having one or more apertures therein allowing access to the dielectric resonator body; and a coupling structure arranged in an aperture of the one or more apertures, comprising at least one coupling path for at least one of coupling an input signal to the first and second resonant modes and coupling an output signal from the first and second resonant modes, the coupling path having an open-circuit end located adjacent to an edge of the aperture for controlling a strength of electric field generated by the coupling structure. | 02-28-2013 |
20130135062 | RADIO-WAVE HALF MIRROR FOR MILLIMETER WAVEBAND AND METHOD OF SMOOTHING TRANSMITTANCE - A radio-wave half mirror for millimeter waveband is fixed inside a transmission line propagating electromagnetic waves of millimeter waveband in a single mode so as to transmit a part of incident electromagnetic waves and reflect a part thereof. The radio-wave half mirror includes: a half mirror body where a slit for transmitting electromagnetic waves is provided on a metal plate; and a dielectric plate that is provided on one surface side of the half mirror body so as to form a dielectric resonator which resonates at a frequency determined by the thickness and the permittivity, and has a transmittance characteristic having a degree of inclination substantially the same as that of the half mirror body in a slope which is inverse to a slope of a transmittance characteristic of the half mirror body in a desired frequency range of the millimeter waveband. | 05-30-2013 |
20130293322 | SIGNAL DISTRIBUTION AND FILTERING IN LOW NOISE BLOCK DOWNCONVERTERS - Various embodiments implement waveguides for signal distribution or signal filtering in satellite receivers. According to some embodiments, a low noise block downconverter (LNB) is implemented using waveguides configured for signal distribution, band pass filtering, low pass filtering, high pass filtering, or band stop filtering. For some embodiments, the waveguides may be formed by the LNB chassis and the ground plane of a printed circuit board mounted to the LNB chassis. | 11-07-2013 |
20130300522 | Radio Frequency (RF) Conductive Medium - Embodiments of the present disclosure provide a radio frequency (RF) conductive medium for reducing the undesirable insertion loss of all RE hardware components and improving the Q factor or “quality factor” of RF resonant cavities. The RF conductive medium decreases the insertion loss of the RF device by including one or more conductive pathways in a transverse electromagnetic axis that are immune to skin effect loss and, by extension, are substantially free from resistance to the conduction of RF energy. | 11-14-2013 |
20130314179 | MILLIMETER WAVEBAND FILTER AND METHOD OF MANUFACTURING THE SAME - A transmission line which allows electromagnetic waves in a predetermined frequency range of a millimeter waveband to propagate in a TE10 models formed by a first waveguide and a second waveguide. A resonator is formed by electric wave half mirrors fixed to the first waveguide and the second waveguide. The second waveguide has a structure in which a first transmission line forming body has a plate shape and has a square hole forming the first transmission line formed to pass therethrough from one surface toward an opposite surface, a second transmission line forming body has a plate shape and has a square hole forming the second transmission line formed to pass therethrough from one surface toward an opposite surface, and the first transmission line forming body and the second transmission line forming body are connectable and separable. | 11-28-2013 |
20140049342 | Waveguide E-Plane Filter Structure with Controllable Size - The present invention relates to a waveguide E-plane filter component ( | 02-20-2014 |
20140292447 | RADIO WAVE HALF MIRROR FOR MILLIMETER WAVE BAND AND METHOD OF FLATTENING TRANSMITTANCE THEREOF - To provide a radio wave half mirror for a millimeter wave band which can flatten transmittance characteristics and a method of flattening the transmittance of the radio wave half mirror for a millimeter wave band. A radio wave half mirror | 10-02-2014 |
20140368300 | Waveguide Filter, Preparation Method Thereof and Communication Device - A waveguide filter, a preparation method thereof, and a communication device to resolve a problem in which a prepared high-resonance-frequency waveguide filter cannot meet an application requirement due to a low precision of an existing machining process. The waveguide filter includes a substrate made of a silicon material, where an etching cavity having a flat side wall is formed in the substrate, a depth of the etching cavity is not greater than 0.7 mm, and an angle between the side wall of the etching cavity and a vertical direction is not smaller than 1 degree, and a waveguide port is disposed on the substrate, where the waveguide port is connected to the etching cavity and electrically connected to the etching cavity. | 12-18-2014 |
20150077198 | Dielectric Waveguide Resonator and Dielectric Waveguide Filter Using the Same - The present invention provides a dielectric waveguide resonator comprising a pair of rectangular parallelepiped-shaped dielectric blocks being in contact with each other through respective contact surfaces thereof. The dielectric waveguide resonator has an outer periphery coated with an electrically conductive film except for the contact surfaces, and is configured to resonate in a TE mode. A probe composed of an electrically conductive film is formed on at least one of the contact surface. Thus, it becomes possible to provide a dielectric waveguide resonator having a simple structure, requiring no adjustment structure, and comprising a structure for conversion between a dielectric waveguide and a coaxial line. | 03-19-2015 |
20150137911 | BAND-PASS FILTER - In order to prevent electrical characteristics from degrading, a band-pass filter includes: a dielectric substrate having an upper surface and a lower surface opposed to each other, the dielectric substrate extending in a waveguide axial direction; a pair of conductor layers respectively arranged on the upper surface and the lower surface of the dielectric substrate; two rows of through hole groups for sidewalls, which are formed at predetermined intervals in the waveguide axial direction so as to electrically connect the pair of conductor layers; and a plurality of through holes for electrically connecting the pair of conductor layers, the plurality of through holes being formed in parallel to the waveguide axial direction and arranged in a center of a waveguide formed in a region surrounded by the pair of conductor layers and the two rows of the through hole groups for sidewalls. | 05-21-2015 |
20150295300 | Dielectric Waveguide with Integrated Periodical Structures - A dielectric waveguide interconnect system has a dielectric waveguide (DWG) a core surrounded by a cladding along the length of the DWG. One or more periodic structures are embedded along the length of the DWG such that the core of the DWG is integral to each of the one or more periodic structures. | 10-15-2015 |
20150364808 | Dielectric Resonator, Assembly Method Thereof and Dielectric Filter - A dielectric resonator, an assembly method thereof and a dielectric filter enable are provided. The dielectric resonator includes the dielectric resonant column, the metal cavity, a sealing cover plate and a tuning screw, wherein the dielectric resonant column is located in the metal cavity, the sealing cover plate is located on an upper end face of the metal cavity, and the tuning screw is located on the sealing cover plate. The dielectric resonator also includes an insulating fixed module located between the lower end face of the sealing cover plate and the upper end face of the dielectric resonant column, and the insulating fixed module is high enough to ensure that a pressure is formed between the sealing cover plate and the dielectric resonant column, so that the dielectric resonant column is fixed at the bottom of the metal cavity. | 12-17-2015 |
20150380792 | Dielectric Waveguide Filter with Direct Coupling and Alternative Cross-Coupling - A dielectric waveguide filter comprising a block of dielectric material covered with an exterior layer of conductive material. A plurality of stacked resonators are defined in the block of dielectric material by one or more slots in the block of dielectric material and an interior layer of conductive material that separates the stacked resonators. First and second RF signal transmission windows in the interior layer of conductive material provide for both direct and cross-coupling RF signal transmission between the stacked resonators. In one embodiment, the waveguide filter is comprised of separate blocks of dielectric material each covered with an exterior layer of conductive material, each including one or more slots defining a plurality of resonators, and coupled together in a stacked relationship. | 12-31-2015 |
20150380794 | Reducing Impact on Insertion Loss of Apertures in Conductive Covering of Filter Body - A multi-mode cavity filter, including two dielectric resonator bodies, the first incorporating a piece of dielectric material having a shape to support a first resonant mode and a second substantially degenerate resonant mode; the second also including a piece of dielectric material, the dielectric properties, shape and dimensions of which may differ from those of the first dielectric resonator body; the second piece of dielectric material having a shape to support at least a first resonant mode; a layer of conductive material in contact with and covering both of the dielectric resonator bodies; one aperture in the layer appearing at the interface of the first and second dielectric resonator bodies, for transferring signals, the aperture being arranged for directly coupling signals to the first and second resonant modes in parallel, and directly coupling signals from the first and second resonant modes in parallel. | 12-31-2015 |
20160006099 | WIDEBAND TRANSITION BETWEEN A PLANAR TRANSMISSION LINE AND A WAVEGUIDE - A wideband transition of the present invention between a planar transmission line and a waveguide comprises a substrate, a segment of the planar transmission line, a conductive patch, an adjusting conductor plate and a section of the waveguide. The segment is arranged in a top conductor layer of the substrate. The conductive patch is arranged in the top conductor layer and connected to one end of the segment. The adjusting conductor plate is arranged in the top conductor layer or another conductor layer of the substrate next to the top conductor layer and isolated from any other conductor. The section is disposed above the conductive patch and connected to a conductor plane at the top conductor layer. Another end of the segment is a first terminal of the wideband transition. Another end of the section is a second terminal of the wideband transition. | 01-07-2016 |
20160006103 | Controlling Coupling in a Filter by Aperture Design - A multi-mode cavity filter, including at least one dielectric resonator body incorporating a piece of dielectric material, the piece of dielectric material having a shape such that it can support at least a first resonant mode and at least a second substantially degenerate resonant mode; a layer of conductive material in contact with and covering the dielectric resonator body; and a coupling mechanism including at least one aperture in the layer of conductive material for at least one of inputting signals to the dielectric resonator body and outputting signals from the dielectric resonator body, the at least one aperture being arranged for at least one of directly coupling signals to the first resonant mode and the second substantially degenerate resonant mode in parallel, and directly coupling signals from the first resonant mode and the second substantially degenerate resonant mode in parallel. | 01-07-2016 |
20160006104 | A Multi-Mode Cavity Filter - A multi-mode cavity filter, including two dielectric resonator bodies, the first incorporating a piece of dielectric material having a shape to support a first resonant mode and second substantially degenerate resonant mode; the second also including a piece of dielectric material; the piece of dielectric material having a shape to support a first resonant mode; a layer of conductive material in contact with and covering both of the dielectric resonator bodies; an aperture in the layer at the interface of the first and second dielectric resonator bodies, for transferring signals from the second dielectric resonator body to the first, transferring signals from the first dielectric resonator body to the second and/or outputting signals from the first dielectric resonator body, the aperture being arranged for coupling signals to the first and second resonant modes in parallel, and/or coupling signals from the first and second resonant modes in parallel. | 01-07-2016 |
20160013534 | PRECISION WAVEGUIDE INTERFACE | 01-14-2016 |
20160020499 | MILLIMETER WAVEBAND FILTER - In an end surface | 01-21-2016 |
20160036110 | Waveguide Filter - An embodiment of the present invention discloses a waveguide filter, which includes a first waveguide at an upper layer and a second waveguide at a lower layer. The first waveguide and the second waveguide are isolated from each other by a metal isolation layer. The first waveguide forms a first resonant cavity. The second waveguide forms a second resonant cavity. The first resonant cavity and the second resonant cavity overlap each other. A coupling slot is disposed at the metal isolation layer in an overlapping area. | 02-04-2016 |
20160036116 | DIELECTRIC RESONATOR, DIELECTRIC FILTER, AND FABRICATION METHOD - The present application provides a dielectric resonator, a dielectric filter, a base station and a method for fabricating the dielectric resonator or the dielectric filter. The dielectric resonator includes: a solid dielectric resonator body, a blind hole located on one side of the solid dielectric resonator body, a metalized layer covering both a surface of the solid dielectric resonator body and a surface of the blind hole, and a demetallized notch located at the metalized layer on the surface of the blind hole. The dielectric resonator provided in the present application can implement tuning of the dielectric resonator, and reduce impact on the resonance frequency of the dielectric resonator after the dielectric resonator is tuned, where the impact caused by that the demetallized notch is covered by a metal material in an assembly process of the dielectric resonator, and signal energy that is leaked from the notch is reduced. | 02-04-2016 |
20160072173 | COUPLER TO LAUNCH ELECTROMAGNETIC SIGNAL FROM MICROSTRIP TO DIELECTRIC WAVEGUIDE - A metallic waveguide is mounted on a multilayer substrate. The metallic waveguide has an open end formed by a top, bottom and sides configured to receive a core member of a dielectric waveguide, and an opposite tapered end formed by declining the top of the metallic waveguide past the bottom of the metallic waveguide and down to contact the multilayer substrate. A pinnacle of the tapered end is coupled to the ground plane element, and the bottom side of the metallic waveguide is in contact with the multiplayer substrate and coupled to the microstrip line. | 03-10-2016 |
20160087322 | Dielectric Waveguide Filter with Direct Coupling and Alternative Cross-Coupling - A waveguide filter comprising a base block of dielectric material defining at least first and second resonators and a bridge block seated on top of the base block and defining at least a third resonator. In one embodiment, the base block comprises first and second base blocks that have been coupled together in an end to end relationship. An external transmission line or an interior RF signal transmission window or an RF signal transmission bridge provides a cross-coupling RF signal transmission path between the first and second resonators. At least first and second interior RF signal transmission windows provide a direct RF signal transmission path between the first and third resonators and the second and third resonators respectively. | 03-24-2016 |
20160126611 | MICROWAVE GUIDE - A microwave guide suitable for carrying microwaves between an object that is vibrating that is connected to a first end of the guide and an object connected to the other end of the guide that is to be protected from transmitted vibrations, the guide providing a restricted path for the transmission of vibrations. In one embodiment, the guide comprises a flexible mesh part having an inner surface which has high electric conductivity and is provided with a plurality openings. The openings may be sufficiently small such that microwave radiation is unable to pass through the opening. The guide may also include a support structure which extends along the length of the guide. The support structure may have a low dielectric loss tangent and which is sufficiently rigid to provide support to the mesh part. | 05-05-2016 |
20160197391 | WAVEGUIDE STRUCTURE AND MANUFACTURING METHOD THEREOF | 07-07-2016 |
20180025882 | CONNECTOR DEVICE, COMMUNICATION DEVICE, AND COMMUNICATION SYSTEM | 01-25-2018 |
20180026322 | STRUCTURE AND WIRING SUBSTRATE | 01-25-2018 |
20190148805 | DIELECTRIC RESONATOR AND DIELECTRIC FILTER | 05-16-2019 |