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Matches 651 - 700 out of 11,695

Document Document Title
WO/2002/036519A1
An object of the present invention is to provide a dielectric ceramic composition for microwave usehaving a relative permittivity &egr r of 35 to 45, Qf¿0? value of more than 50,000 GHz (at 7 GHz), and dielectric characteristic of $g(t)...  
WO/2002/033780A1
The invention relates to a cavity filter for electromagnetic waves. The cavity filter comprises a first casing element (2) and a second casing element (3), which together define a cavity (1), a tuner (11) of dielectric material and a res...  
WO/2002/033778A1
The invention relates to a bearing device for a spindle, for example, for a dielectric tuner (13) in a cavity filter for electromagnetic waves. The bearing device comprises at least two sprung tongues (27), each of which has a stud (28) ...  
WO/2002/033781A1
The present invention relates to a device (1) for transmitting or receiving electromagnetic waves in a cavity (3), where the device comprises a loop (10) and a dielectric part (9) that houses at least a first end part (11) of the loop. T...  
WO/2002/033779A1
The invention relates to a combiner (1) for electromagnetic waves that are to be sent or received in, for example, a radio base station. The combiner comprises a first unit and at least one second unit, where the first unit comprises a f...  
WO/2002/019462A1
The invention relates to a microwave component comprising a base (1), in entrance surface (6) and a an exit surface (7), said base (1) comprising a ceramic material. Said ceramic material contains at least two different components, avail...  
WO/2002/019458A1
It is intended to provide an input/output coupling which suppresses deterioration of Q-value and which is strong. An input-output probe (110) is placed to extend in an arc concentric with a dielectric resonance element (106) on the upper...  
WO/2002/019468A2
An antenna that includes a housing having a plurality of walls forming an enclosure, a slot formed in a first wall of the housing, and, a folded cavity formed in a second wall of the housing opposite the first wall. The folded cavity is ...  
WO/2002/009228A1
The dielectric loaded cavity for high frequency filters consists of a metal container housing a dielectric block held in position by supporting plates, that also sustains coupling and tuning elements. This invention provides broadband fi...  
WO/2002/006686A1
The present invention relates to a tuning screw assembly comprising a sleeve (100) with internal threads for engaging a tuning screw (200) having external threads. The sleeve comprises a first threaded portion (32) which is axially displ...  
WO/2002/005377A1
A dielectric resonator device, wherein the upper and lower opening surfaces of ceramic cavities (1a) and (1b) having opening surfaces on the upper and lower sides thereof and dielectric cores (2a) and (2b) formed therein integrally with ...  
WO/2002/001578A1
The disclosed invention relates to Bi¿2?0¿3?-ZnO-Ta¿2?0¿5? dielectric compounds and compositions, and to their manufacture. The compounds of the invention have outstanding K, Q, TCF, and TCC. Examples of these properties include a K ...  
WO/2001/099223A2
A method of making a low-loss electromagnetic wave resonator structure. The method includes providing a resonator structure, the resonator structure including a confining device and a surrounding medium. The resonator structure supportin...  
WO/2001/099224A1
Electronically tunable thick film composites of tunable phases such as barium strontium titanate and additional dielectric oxide phases are disclosed. The composite thick films can contain multiple phases such as barium strontium titanat...  
WO2001043224B1
A dielectric resonator system (100) having a dielectric element (102) and a purified alumina attachment assembly (106) both housed within a metallic resonant casing (104). Attachment assembly (106) is at least 99.5% pure alumina. Attachm...  
WO/2001/097320A2
An electromagnetic resonator and a frequency filter. The resonator is composed of an electromagnetic waveguiding structure which is twisted along its axis while being bent back and the two ends connected to provide a continuous path to t...  
WO/2001/095684A1
The idea of the invention is to form a cavity in a multilayer substrate at the point of the structure to be trimmed. This enables the embedding of tolerance critical components inside substrates, such as printed circuit boards, modules, ...  
WO/2001/092182A1
The invention provides a dielectric ceramic composite that can be burnt at a low temperature. The dielectric ceramic composite in accordance with the invention is produced by means of adding eight kinds of chemical compounds of ZnO, SiO...  
WO/2001/084572A2
This invention provides tunable devices incorporating the dielectric CaCu¿3?Ti¿4?O¿12?. CaCu¿3?Ti¿4?O¿12? is especially useful in tunable devices such as phase shifters, matching networks, oscillators, filters, resonators, and ante...  
WO1999066583A3
A TE0 gamma delta mode dielectric resonator (12) includes a cylindrical dielectric disk (32, 32', 32'') having top and bottom ends (20, 22) spaced apart by a closed curve wall (24). The dielectric disk has an effective dielectric constan...  
WO2000026149A9
Embedded, coupled, shaped waveguide resonators having conductive walls sandwiched between two fired green tape stacks, said conductive walls having apertures therein whose size and location determine the degree of coupling. These wavegui...  
WO/2001/081269A1
A low loss high-frequency dielectric ceramic composition for sintering at a low temperature and method of manufacturing the same which is characterized in that excellent dielectric properties such as a much lower sintering temperature an...  
WO/2001/076004A1
The present invention relates to a coaxial cavity resonator comprising walls delimiting a cavity, and at least one resonator body comprising a conductive rod having a first end being in short circuit relation to a first wall of said cavi...  
WO/2001/069709A1
A resonator for use in a radio frequency filter including a substantially planar resonant portion that is substantially elliptical in plan. The resonant portion is mounted on a dielectric substrate. The resonator is configured to operate...  
WO/2001/067543A1
The aim of the invention is to provide a cavity resonator that has a great variable frequency area of a resonance frequency and is provided with good quality. Such a cavity resonator is provided with a round cross-section. The H11n wave ...  
WO/2001/065632A1
The present invention relates to a single-piece centre conductor (15) for an LC-filter, and an LC-filter comprising at least one such centre conductor. The centre conductor comprises a first end section (20) with axially form confining f...  
WO/2001/061850A1
A method for characterizing a frequency response of a tunable filter (11) includes the steps of adjusting a tuning means (12) to a first predetermined position; measuring the resonance frequency of the filter (10); temporary storing the ...  
WO/2001/054221A1
This invention relates to high frequency electromagnetic circuits, in particular to those made on planar or quasi-planar substrates, where the circuit is patterned on a metallic or superconducting film on top of a dielectric in any of th...  
WO/2001/050544A1
An assembly for supporting a substrate of an integrated circuit and forming a cavity resonator with the substrate. The assembly includes a baseplate in which a cavity for the cavity resonator is integrally formed. A substrate is mounted ...  
WO/2001/050591A1
The invention relates to a dielectric resonator oscillator, comprising a dielectric resonator (4) which is contained in a resonant cavity (2) for generating a signal that oscillates at a predetermined central frequency. The dimensions of...  
WO/2001/048788A1
The invention relates to an arrangement for coupling microwave energy into a plasma CVD coating chamber (3) located in a cavity resonator (1). Said arrangement has a microwave supply part (11) and a microwave guide (9, 1). The invention ...  
WO/2001/048856A1
A multi-layer microwave resonator (10) comprises a cavity (12) having an inner surface formed from an electrically conductive material. Pieces (16a - 16e) of dielectric materials stacked on top of each other form a contiguous body (14) t...  
WO2001010033A3
The invention relates to an analog-to-digital converter for a signal in the gigahertz range, to a millimetric wave receiver comprising the inventive analog-to-digital converter for a signal in the gigahertz range and to a bandpass filter...  
WO/2001/043224A1
A dielectric resonator system (100) having a dielectric element (102) and a purified alumina attachment assembly (106) both housed within a metallic resonant casing (104). Attachment assembly (106) is at least 99.5% pure alumina. Attachm...  
WO/2001/043221A1
A dielectric resonator is provided having a cavity, a dielectric half disk resonator structure, and a support for the half disk resonator structure. The support isolates the dielectric half disk resonator structure from walls of the cavi...  
WO/2001/043220A1
A ferroelectric layer is deposited or in close proximity to a ferromagnetic ferrite layer to make a microwave substrate on which conductors can be deposited or placed to make devices. The permitivity of the ferroelectric layer can be cha...  
WO/2001/041251A1
Described are tunable high temperature superconducting band-pass and band-reject filters having broad tuning frequency range without performance deterioration, as well as high temperature superconducting filter circuits for use therein.  
WO/2001/035485A1
A cavity filter (8) includes a cavity (10) constituting an electrically conductive enclosure (12, 14, 16, 18, 20, 22), at least one resonator element (24-1,...24-n) constructed from a dielectric material, and a support (30) constructed f...  
WO/2001/027942A1
A new dielectric composition which contains the following elements: lanthanides (Ln), Al, Ca, and, Ti as metal elements and which when these components are expressed in terms of a mole ratio as: a Ln¿2?O¿x?.bAl¿2?O¿3?.cCaO.dTiO¿2? s...  
WO/2001/026178A1
In a method of fabricating a tuning door for a resonant cavity, firstly contact fingers (10) are formed around the edge of a conductive plate (9) and the plate (9) is then fixed to a support (12) by, for example, double sided adhesive ta...  
WO2000062367A8
The present invention relates to an electrically tunable device (10), particularly for microwaves. It comprises a carrier substrate (1), conducting means (3A, 3B) and at least one tunable ferroelectric layer (2). Between the conducting m...  
WO/2001/020711A1
The invention relates to a method for balancing the bandwidth of a dual-mode filter, consisting of a ring resonator (1) produced by microstrip technology. The method is characterised in that the strip material is removed (1.1, 1.2, 1.3, ...  
WO/2001/017057A1
The invention relates to a high-frequency band pass filter assembly, comprising a master resonator and at least one stop-band resonator which is coupled thereto. The aim of the invention is to construct a filter structure in such a way, ...  
WO/2001/015261A1
A dielectric resonator (10) comprises a dielectric block having first faces formed by cutting three edges sharing a corner of the dielectric block and second faces adjacent to the first faces. Any of the first faces forms an angle of 45...  
WO/2001/013460A1
A filter element comprising a conductive element mounted in a conductive housing, the conductive element and conductive housing arranged such that the conductive element is electrically coupled to the conductive housing at one end of the...  
WO/2001/010033A2
The invention relates to an analog-to-digital converter for a signal in the gigahertz range, to a millimetric wave receiver comprising the inventive analog-to-digital converter for a signal in the gigahertz range and to a bandpass filter...  
WO/2001/009974A1
An extremely small and inexpensively manufactured physics package for an atomic frequency standard can be provided with a microwave cavity having non-critical dimensions that is driven in a substantially TEM mode by a lumped LC means, th...  
WO/2000/079640A1
The invention relates to a dielectric resonator configuration which uses two dielectric spacers in order to separate the dielectric resonator from two end plates. The resonator configuration provides a very high unloaded Q-factor for a m...  
WO/2000/077882A1
The resonator (1) is located on a substrate (2), next to a signal (9), and is surrounded by a housing (4). A tuning element (7, 8) with a conductive plate (8) projects into said housing (4), the distance of said plate from the dielectric...  
WO2000026149A8
Embedded, coupled, shaped waveguide resonators having conductive walls sandwiched between two fired green tape stacks, said conductive walls having apertures therein whose size and location determine the degree of coupling. These wavegui...  

Matches 651 - 700 out of 11,695