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WO/2000/014823A1 |
The invention relates to a tuneable cavity resonator comprising a resonator body (2, 3, 4) defining a cavity (5), a tuning plate (28) whose position can be modified relatively to said resonator body (2, 3, 4) and which influences the res...
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WO/2000/013256A2 |
The present invention relates to a modified coaxial cavity resonator and a filter utilising such resonators. The cavity resonator is provided with a cavity wall (203, 204, 205), which includes on its inside at least one conductive body (...
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WO1999065102A9 |
High temperature superconductor mini-filters and mini-multiplexers utilize self-resonant spiral resonators and have very small size and very low cross-talk between adjacent channels.
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WO/2000/010220A2 |
The construction is a coaxial cavity resonator (20, 30, 40, 50) comprising at least one conductive body (11, 31), which body is open at one end and shortened from a quarter-wave resonator. The conductive body includes a main rod (16), wh...
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WO/2000/008477A1 |
The invention relates to a quasi-hemispherical Fabry-Perot resonator covered by two radiation shields and lodged in a vacuum chamber enabling a defined cryogenic environment for said resonator to be regulated. The resonator conventionall...
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WO/2000/008775A1 |
An RF receiver includes first and second RF filter stages and an amplifier stage. An output terminal of the first RF filter stage is coupled to an input terminal of the amplifier stage, and an output terminal of the amplifier stage is co...
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WO/2000/007211A1 |
A resonant cavity (20, 40) is coupled in series with an output waveguide (30) of a klystron (10) in order to enhance power within an operating band of the klystron (10). The response characteristic of the resonant cavity (20, 40) enhance...
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WO/2000/002286A1 |
In a quarter-wave coaxial cavity resonator, having a cavity with a cylinder inner wall (1), and bottom (3) and top (4) walls and a symmetry axis (2) with a resonator bar (5), a high coupling degree to a feed line (12) is obtained by a T-...
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WO/2000/002285A1 |
A quarter-wave type coaxial type resonator having a cavity (1, 3, 4) with a symmetry axis (2) has a centrally and symmetrically arranged inside resonator rod (5) affixed to the bottom of the cavity. The normal straightly cylindrical reso...
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WO/1999/066583A2 |
A TE¿0$g(g)$g(d)? 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 consta...
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WO/1999/066585A2 |
The present invention relates to a dielectric resonator (20) comprising a dielectric resonator body (30, 40, 50, 60, 70, 80), where the resonator body includes at least two resonant elements (25, 26), wherein by altering the shape of the...
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WO/1999/065103A1 |
The invention relates to a multipolar band pass filter with elliptical filter characteristic, comprising hemispheric dielectric dual mode resonators consisting of a hemispheric dielectric and coupling and balancing elements for fine adju...
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WO/1999/062840A1 |
A microwave dielectric ceramic composition exhibiting excellent relative permitting ($g(e)) and high Qf-value, enabling the temperature coefficient of resonance frequency to be easily adjusted, and being best suited for a filter having c...
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WO/1999/062839A1 |
A microwave dielectric ceramic composition exhibiting excellent relative permittivity ($g(e)) and high Qf-value, enabling the temperature coefficient of resonance frequency to be easily adjusted, and being best suited for a filter having...
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WO/1999/056341A1 |
An oscillator circuit (20) having a flip chip metalization pattern and base substrate metalization pattern is defined such that a common-drain oscillator is configured with the common drain (38) interposed between the source (40) and gat...
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WO/1999/056340A1 |
The present invention relates to a resonator assembly (1) comprising a helix resonator (2) consisting of a conductor wound as a cylindrical coil, and a housing (4) at least partly made conductive material and enveloping the helix resonat...
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WO/1999/045634A1 |
A method (100) for tuning a voltage controlled oscillator by changing electrical circuit parasitics includes a first step (102) of providing a voltage controlled oscillator circuit on a circuit board and a plurality of different metal li...
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WO/1999/041799A1 |
The resonator (10) of the present invention is preferably made of low cost alumina offering performance in a variable frequency oscillator application that is nearly equivalent to that of a high Q dielectric design. The resonator utilize...
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WO/1999/036985A1 |
An electromagnetic resonator has a resonant element made of a high-temperature superconducting material such as YBa¿2?Cu¿3?O¿7-x?. The resonant element has a substrate coated with a thermally conductive layer such as silver, over whic...
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WO/1999/036982A2 |
The present invention provides improved tunable filters (1) which include improved tuning mechanisms (7-16) and may include two opposed ceramic pucks (2, 3).
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WO/1999/027647A2 |
An extra symmetry is introduced into resonant circuits in order to make the location of voltage nodes (+Vdc, -Vdc) of the resonant waveform stationary. These stationary voltage nodes (+Vdc, -Vdc) are then used as the contact points of th...
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WO1999010948B1 |
A dielectric resonator system (100) having a dielectric element (102) and an attachment assembly (108) both housed within a casing. The attachment assembly (108) is electrically insulating. The attachment assembly (108) couples the diele...
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WO/1999/022564A2 |
A dielectric filter (10) comprises two stripline resonators (20, 40) which are arranged on parallel planes, respectively, with dielectric layers (10d, 10e) being sandwiched therebetween and are electromagnetically coupled to each other. ...
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WO/1999/022417A1 |
A duplexer using a dielectric block and having stepped impedance resonators is disclosed. The duplexer comprising open ended resonators arranged in a front side of the dielectric block, shorted resonators arranged in a rear side of the d...
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WO/1999/019933A1 |
A microwave frequency composite resonator comprising a metal housing having an internal surface and defining a resonator cavity, a dielectric member having a top face and a bottom face and a conducting plate. The dielectric member is loc...
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WO/1999/017394A1 |
The invention relates to an air-insulated coaxial resonator, which is particularly suitable for a structural part in duplex filters. The resonator has an inner conductor (301) extended at one end, so that it forms extra capacitance with ...
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WO/1999/012225A1 |
A multimodal dielectric resonance device wherein the arrangement of dielectric cores in the cavity is easy and which comprises a plurality of stages of resonators and has a high Qo value. Dielectric cores (1b, 1c) that resonate in a plur...
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WO/1999/012224A1 |
A dielectric resonance device comprising small resonators in a plurality of stages, and a multi-mode dielectric resonance device having a high Q0 value. A dielectric core of a nearly rectangular parallelopiped shape that resonates in a p...
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WO/1999/000897A1 |
Novel structures and methods for forming useful high temperature superconducting devices, most particularly resonators, are provided. Structures resulting in reduced peak current densities relative to known structures achieve numerous de...
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WO/1999/000892A1 |
It is disclosed a microwave VCO implemented in planar way technique on the same standard glass reinforced FR4 substrate supporting the layout of the relevant control circuit (in particular, locking circuits and bias circuits) operating a...
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WO/1998/058419A1 |
For use with various types of devices conditioning radio signals, a temperature compensating cavity resonator includes a practicable and effective assembly. The resonator includes: a cavity resonator housing having an enclosing plate for...
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WO/1998/057425A1 |
A resonator (5) for a high frequency electric oscillator is disclosed. The resonator is an integrated capacitor and inductor. The capacitance (9) and inductance (10) of the resonator are continuously and simultaneously adjustable (26). T...
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WO/1998/057387A1 |
A resonator (5) includes a substrate (15) to which are attached trimmable capacitance (31, 32A) and inductance (37, 38) portions which together with a varactor (7) and transistor (8) form an oscillator circuit. The resonator (5) mounts o...
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WO/1998/056062A1 |
A microwave resonator comprising a cavity (7) with a dielectric resonator device (8, 11) including a movable dielectric tuning body (11), which is mechanically coupled to an electrical motor (28). The tuning body is carried by an electri...
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WO/1998/054783A2 |
The present invention relates to a tuning device in a radio filter equipment for mobile telephony in which one or more cavities in the equipment should be tuned to the right frequency. The invention also relates to a tuning plate includi...
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WO/1998/048471A1 |
The present invention relates to an arrangement (10) for coupling electro magnetic waves, particularly microwaves into and/or out of a device which comprises a dielectric resonator having a non-linear dielectric substrate with a high die...
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WO/1998/044583A1 |
A resonator comprises a microwave microstrip disposed on a low dielectric substrate. The microstrip has a length substantially equal to half of a wave length of a resonating frequency. Opposite ends of the microstrip are shorted to groun...
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WO/1998/033229A1 |
A dielectric resonator which has a dielectric substrate formed with electrodes on both front and back surfaces, with at least one of the electrodes being constituted of a thin film multilayer electrode made by alternately stacking thin f...
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WO/1998/029919A1 |
The invention relates to a device for contactless transmission of electrical signals and/or energy between at least two parts that can be relatively moved towards each other. Multiple defined electromagnetic coupling elements, the near f...
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WO/1998/028813A2 |
The present invention relates generally to filtering in e.g. mobile telephony. A new input loop is introduced wherein the input loop is fixed in its physical relation to the H-field. One end of this input loop is arranged to form a capac...
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WO/1998/026470A1 |
A dielectric resonator which can be reduced in size and in which the coupling between a resonance section and electrodes closely arranged to the resonance section can be adjusted easily. Conductors (2a and 2b) having openings are formed ...
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WO/1998/025321A1 |
A microwave resonator, particularly for use in cellular telecommunications comprising hollow electrical conductor defining a resonant cavity and a substantially cubic member located within the cavity. The substantially cubic member has a...
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WO/1998/025340A1 |
An automatic dynamic range controlling circuit which is provided with a first circuit of a fixed gain, and a second circuit that has substantially the same propagation delay time as the first one and has a variable gain. The automatic dy...
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WO/1998/020575A1 |
The invention relates to a resonator filter comprising a housing structure (10), at least one resonator conductor (20) in the housing structure, and a regulating means (30) for regulating the frequency band of the resonator filter. The r...
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WO/1998/020576A1 |
The invention concerns a filtering device comprising a metal cavity (1, 11) closed by two end walls (3a, 3b; 13a, 13b) extending transversely relative to the axis of said cavity (1, 11), and at least two dielectric inserts (4a, 4b; 14a t...
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WO/1998/016965A1 |
The invention concerns a component for a microwave oven, in particular a microwave waveguide and/or a microwave resonator (cavity) for conducting microwaves with high energy density at high temperatures for sintering hard materials. The ...
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WO/1998/013893A1 |
The invention relates to a device for processing electromagnetic waves in the microwave range, with a body (3) provided with a circuit element (1) which is electrically connected to a strip-type transmission line (2) which comprises cond...
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WO/1998/009349A1 |
The invention relates to a coaxial connector (6) comprising an inner conductor (26) and a tubular conductor (27) surrounding the inner conductor (26). To provide an adjustable connector, the connector (6) comprises a part (28) which is m...
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WO/1998/008359A1 |
The invention concerns a furnace for sintering material, said furnace being an overdimensioned microwave resonator. The design of the resonator interior permits a homogeneous field-distribution of the microwave coupled-in obliquely via a...
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WO/1998/003446A1 |
Microwave dielectric ceramic based on silver, niobium and tantalum oxides with additives (V�2?O�5?, Li�2?O, WO�3?, Mn�2?O�3? and Bi�2?O�3?), characterized in that the contents in mole fractions are as follows: x(Ag�2?O)...
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