Matches 351 - 400 out of 500 < 1 2 3 4 5 6 7 8 9 10 >
Match Document Document Title
5162760 Dielectric block filter with isolated input/output contacts  
Improved frequency characteristics can be achieved by using input/output pads on a surface mount block filter which pads are mounted on mesas formed by troughs cut through the dielectric material...
5157365 Combined block-substrate filter  
A block-substrate dielectric filter with an a wider VHF range and better capacitive performance is set forth. A capacitive matrix situated in a dielectric substrate (102) that is operably attached...
5150089 Dielectric filter having an attenuation pole tunable to a predetermined frequency  
A dielectric filter includes a homogeneous monolithic block of dielectric material having a plurality of parallel extending dielectric resonators formed therein. A plurality of first electrodes...
5146193 Monolithic ceramic filter or duplexer having surface mount corrections and transmission zeroes  
A ceramic filter (10) can be surface mounted. Input/output pads (18 and 20) through which electrical signals pass are located on one surface of a block of dielectric material (12) to permit use of...
5144269 Dielectric filter having external connection formed on dielectric substrate  
A dielectric filter includes: a plurality of coaxial resonators and external connectors; each of the coaxial resonators includes a dielectric block having an outer peripheral surface and an inner...
5132651 Filter apparatus  
A filter apparatus in accordance with the present invention comprises, for example, a band-pass filter and a plurality of band-stop filters connected as the post-stage to the band-pass filter. The...
5130682 Dielectric filter and mounting bracket assembly  
A dielectric filter assembly and mounting therefor. The mounting bracket forms a support surface and includes integrally formed strip members for interconnecting electrodes formed upon a face...
5130683 Half wave resonator dielectric filter construction having self-shielding top and bottom surfaces  
A dielectric block filter construction having resonating cavities formed therein to form one half wave-wavelength resonators thereby. The resonating cavities span opposing side surfaces of the...
5124676 Dielectric filter having variable rectangular cross section inner conductors  
A dielectric filter having a generally box-like dielectric block, an outer conductor covering side surfaces of the dielectric block, a plurality of inner conductors arranged in the dielectric block...
5109207 Coaxial dielectric resonator having a groove therein and method of producing such coaxial dielectric resonator  
A dielectric resonator includes a resonator body having a groove formed in its upper surface adjacent to an outer periphery of a through hole formed through the body. An electrically-conductive...
5081435 Dielectric filter  
A dielectric filter having band elimination characteristics includes a resonance circuit with a coupling terminal. A proximal portion of the coupling terminal and a ground electric potential...
5053910 Surge suppressor for coaxial transmission line  
A surge protection circuit for insertion into a coaxial cable system is configured as a coaxial structure of given characteristic impedance extending between matching input and output connection. A...
5045824 Dielectric filter construction  
A ceramic filter mountable on a multi-layer circuit board. The filter contains a two-level mounting surface for matingly engaging with a circuit board. One surface portion of the two-level mounting...
5023580 Surface-mount filter  
A filter assembly (100) includes a ceramic block filter (102) and shielding bracket (132) which surface mounts to a printed circuit board (152) for interconnecting to radio frequency devices, such...
5023579 Integrated bandpass/lowpass filter  
A bandpass/lowpass filter comprises a bandpass filter with two or more resonators with the first and last resonators coupled to associated connectors. Corresponding lowpass filters are positioned...
5015973 Duplexer with an isolating circuit on a dielectric plate  
A circuit such as a duplexer which isolates a first and second frequency signals respectively directed to and from an antenna terminal. A transmitter filter has a output terminal connected to a...
5015974 Isolating circuit and dielectric filter for use therein  
An isolating circuit, which isolates a first frequency signal in a first frequency range and a second frequency signal in a second frequency range which is higher than the first frequency range,...
5010309 Ceramic block filter with co-fired coupling pins  
A ceramic block filter (100) includes coupling pins (101 and 102) disposed in holes (124 and 125) in corresponding electrodes (121 and 122) for interconnecting the filter to radio frequency...
4987391 Antenna cable ground isolator  
A coaxial cable isolator is presented which serves to reduce or eliminate ground loop induced hum and interference in audio-video entertainment systems connected to externally grounded antenna...
4985800 Lighting protection apparatus for RF equipment and the like  
Lightning protection apparatus for antenna-coupled RF equipment is provided. A one quarter wavelength shorting stub bandpass filter shunts the RF equipment and a distributed capacitance, high...
4985690 Dielectric stepped impedance resonator  
A coaxial dielectric resonator for use at high frequency. The outer or inner peripheral surface of a tubular dielectric member is stepped so as to provide a greater suppression of spurious...
4954796 Multiple resonator dielectric filter  
A duplexer for a radio transceiver is disclosed in which two volumes of dielectric material each have at least two holes and each is covered with a conductive material except for one surface. An...
4945318 Low frequency isolator for radio frequency hyperthermia probe  
An isolator for insertion in a coaxial cable between an RF generator and a device employing RF energy provides isolation against DC and low frequency (60 Hz) AC while passing the RF energy with low...
4937542 Dielectric filter  
An ingeniously designed new dielectric filter is disclosed. Such a dielectric filter comprises a first pair of groove side wall electrodes arranged on a side wall of a groove in juxtaposition with...
4896124 Ceramic filter having integral phase shifting network  
An integral phase shifting network of a transmitter filter provides a means to reduce the size and increase the efficiency of an antenna coupling network. The network to shift the phase of the...
4891615 Dielectric filter with attenuation pole  
A dielectric filter with an attenuation pole having sharp attenuation characteristics. The dielectric block employed in the present dielectric includes a dielectric block single-block formed of TiO...
4890079 Di-electric bandpass filter  
This invention relates to a di-electric bandpass filter using a di-electric resonator for selecting a desired wave and removing an undesired wave. The di-electric resonator has one central...
4879533 Surface mount filter with integral transmission line connection  
A surface mount dielectric block filter with an integral transmission line connection to external circuitry is disclosed. In order to connect an input/output capacitor metallized on the surface of...
4855693 Dielectric filter and a method of manufacture thereof  
A dielectric filter and a method of manufacture. The filter includes a block of ceramic material having one or more holes extending from a top surface to a bottom surface, each of which is...
4837535 Resonant wave filter  
A compact resonant wave filter capable of selectively propagating an electromagnetic wave of a prescribed frequency with excellent band-pass wave filter characteristics comprises a TM mode...
4823098 Monolithic ceramic filter with bandstop function  
A ceramic filter includes a multiple zero bandstop filter function. The ceramic filter has a dielectric block with top and bottom surfaces and at least two holes, including a first hole and a...
4808951 Dielectric filter  
A dielectric filter of which a characteristic is stable without a gastight casing. The dielectric filter's structure is comprised of an input, an output, a dielectric having a plurality of holes...
4806889 Ceramic filter  
A dielectric ceramic body for use in a band-pass filter. The ceramic body has a plurality of through holes formed to extend transversely from one side surface to another side surface which is...
4800348 Adjustable electronic filter and method of tuning same  
An adjustable electronic filter apparatus is disclosed comprising a dielectric block having one or more through-holes and having a conformal conductive coating substantially over all outside...
4799033 Microwave separator  
A microwave separator for separating a microwave signal to those having frequencies included in two frequency bands by means of a first band pass filter intended for the low frequency band and a...
4795992 Mount for dielectric coaxial resonators  
An assembly which comprises a plurality of dielectric coaxial resonators, each comprising a generally elongated, polygonally-sectioned dielectric body having a hollow coaxially defined therein so...
RE32768 Ceramic bandstop filter  
An embodiment of a unique ceramic bandstop filter is comprised of a dielectric plate having an input electrode disposed centrally on the top surface thereof and a dielectric block fixedly attached...
4768003 Microwave filter  
A microwave filter comprising a rectangular ceramics block (30) having a plurality of elongated parallel holes (31-36) extending from the top surface to the bottom surface thereof. The holes are...
4761624 Microwave band-pass filter  
A microwave band pass filter comprises a band pass filter of the coaxial type which is formed by connecting plural coaxial type resonators in series through capacitors, and another band pass filter...
4757288 Ceramic TEM bandstop filters  
A ceramic TEM resonator bandstop filter is disclosed wherein the direct inter-resonator coupling is retarded by a plurality of shorting holes which are positioned between the resonators and extend...
4757284 Dielectric filter of interdigital line type  
An interdigital line type dielectric filter acting as a bandpass filter at radio frequencies has a dielectric body on which a grounding electrode is formed. Two parallel exciter lines extend...
4745379 Launcher-less and lumped capacitor-less ceramic comb-line filters  
An inhomogeneous ceramic dielectric microwave RF TEM resonator filter having a plurality of unplated notches in the ceramic for enhancing direct inter-resonator coupling. The filter is implemented...
4742562 Single-block dual-passband ceramic filter useable with a transceiver  
A single-block ceramic filter (100) providing both pass and stop bands couples an RF signal from transmitter (180) to an antenna (190) and an RF signal from the antenna (190) to a receiver (170)....
4733208 Dielectric filter having impedance changing means coupling adjacent resonators  
A dielectric filter comprises a cubic dielectric block in which a plurality of holes arranged in the longitudinal direction are formed vertically therethrough. On outer surfaces of the dielectric...
4730173 Asymmetrical trap comprising coaxial resonators, reactance elements, and transmission line elements  
An improved asymmetrical trap which includes at least one dielectric material coaxial resonator, a capacitor inserted between an inner conductor of the coaxial resonator and a first signal...
4716391 Multiple resonator component-mountable filter  
A dielectric block filter which may be mounted on a printed circuit board or other substrate as a single component is disclosed. The dielectric filter utilizes metalized hole resonators having...
4713633 Cover attaching arrangement for casing of dielectric coaxial resonators  
An arrangement for attaching a cover member onto a casing of dielectric coaxial resonators and the like, which is capable of attaching the cover member onto the casing containing the resonators in...
4704630 Wide bandwidth display driver apparatus  
To improve the bandwidth of a display driver stage in a wideband video signal processing and display system, the output of a display driver amplifier is coupled to a display device via a...
4703291 Dielectric filter for use in a microwave integrated circuit  
A dielectric filter for use in a microwave integrated circuit includes a substrate made of ceramics and a plurality of dielectric resonators mounted on the substrate. The substrate has a ground...
4683450 Line with distributed low-pass filter section wherein spurious signals are attenuated  
For suppression of high-frequency spurious signals (noise) present on an electrical transmission line, the line incorporates at least one section comprising a distributed low-pass filter. This...
Matches 351 - 400 out of 500 < 1 2 3 4 5 6 7 8 9 10 >