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7378926 |
Single crystalline magnetic garnet and YIG device
A YIG device comprises a resonator including a YIG element 16 of a single crystalline yttrium iron garnet having a part of yttrium substituted with gadolinium, which is formed in a spherical...
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7378924 |
Filter with improved capacitive coupling portion
A filter is provided which comprises a single dielectric, and a line conductor and a ground conductor disposed on the dielectric. The line conductor includes first and second line conductor...
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7375604 |
Compact bandpass filter for double conversion tuner
A bandpass filter includes a plurality of resonators on a printed circuit board. An input pin is connected to a first resonator of the plurality of resonators. An output pin is connected to a...
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7369018 |
Dielectric filter
In order to achieve miniaturization without degrading Q of a dielectric filter in the present invention, resonant elements has upper and lower ground electrodes. The upper ground electrode is...
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7352264 |
Electronically tunable dielectric resonator circuits
In order to permit electronic tuning of the frequency of a circuit including dielectric resonators, such as a dielectric resonator filter, tuning plates are employed adjacent the individual...
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7352263 |
Method and mechanism for tuning dielectric resonator circuits
The invention comprises a technique and associated mechanisms by which dielectric resonator circuits, such as filters, can be tuned in both frequency, bandwidth or both without the need for irises,...
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7342469 |
Air cavity module for planar type filter operating in millimeter-wave frequency bands
Provided is an air cavity module for a planar type filter operating in millimeter-wave frequency bands. The air cavity module includes: the planar type filter operating in the millimeter frequency...
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7342470 |
Circuit board microwave filters
A microwave filter has resonator comprised of a cylindrical structure having conductive walls filled with a dielectric material where the cylindrical structure is recessed inside a multi-layered...
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7332987 |
Multimode dielectric resonator device, dielectric filter, composite dielectric filter and communication apparatus
Two TE modes whose electric-field rotating planes have a perpendicular relationship are coupled independently of the coupling between two TM modes whose electric-field directions have the same...
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7330090 |
Zeroeth-order resonator
A high frequency resonator circuit and method of fabrication is described which has a resonant frequency independent of physical resonator dimensions. The resonator operates in a zeroeth-order mode...
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7326667 |
Microwave dielectric ceramic
A dielectric ceramic material consisting essentially of a composition of Formula 1
x ATiO 3 (1 −x )Nd z Re (1−z) AlO 3 ...
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7327210 |
Band agile filter
A microwave filter and method for remotely tuning a microwave filter from one sub-band to another sub-band using metallic rings to adjust the capacitance or inductance of the resonator. In...
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7323954 |
Dielectric ceramic filter with metal guide-can
A dielectric ceramic filter with a metal guide can is provided. The dielectric ceramic filter includes a metal guide can coupled to and projecting from both input/output ends of the dielectric...
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7321280 |
Transmission line and high frequency cavity resonator using such transmission lines, particularly for the nuclear magnetic resonance
Transmission line and high frequency cavity resonator using such transmission lines, particularly for Nuclear Magnetic Resonance. This transmission line comprises a straight and segmented ( 1 )...
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7319850 |
Low noise block downconverter converting received signal to intermediate frequency signal
In a low noise block downconverter converting a right-hand (or horizontally) polarized wave signal and a left-hand (or vertically) polarized wave signal to intermediate frequency signals, one of...
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7317365 |
Bandpass filter having parallel signal paths
A bandpass filter comprises a number of resonators which are arranged between an input and an output of the filter and which are interconnected to form at least two main signal paths that lead from...
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7310030 |
Ring millimeter-wave filter having an embedded microstrip structure
A ring millimeter-wave filter is a three-dimensional dual-mode ring filter. The ring millimeter-wave filter makes use of a three-dimensional coupling architecture as the feed of a filter to conquer...
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7310031 |
Dielectric resonators and circuits made therefrom
A dielectric resonator having variable cross-section, preferably varying monotonically, and, most preferably, the resonator being in the shape of a truncated cone. Such shapes displace the H 11 ...
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7307581 |
Mounting structure of high-frequency semiconductor apparatus and its production method
In a high-frequency circuit having a substrate having a high-frequency transmission line and an dielectric resonator formed on said substrate so that said dielectric resonator and said...
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7292124 |
Variable resonator and variable phase shifter
A variable resonator is provided which comprises signal conductor 13 formed on top side surface of dielectric substrate 12 , ground conductor layer 11 formed on back side surface thereof and...
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7292112 |
Whispering gallery oscillator
There is disclosed a whispering gallery oscillator for producing a low noise microwave output signal. The whispering gallery oscillator comprises a dielectric resonator 1 comprising paramagnetic...
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7283022 |
Dual mode ceramic filter
A dual mode ceramic filter has an enclosure with two cavities separated by a wall, and two TM dual-mode resonators, each TM dual-mode resonator positioned in a corresponding cavity. Each TM...
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7280010 |
Dielectric resonator RF interconnect
A RF interconnect comprising a dielectric resonator is disclosed. The dielectric resonator may be included in an interconnect housing. The dielectric resonator includes metalized side surfaces...
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7280009 |
Radio frequency filter systems and methods
Systems and methods are disclosed herein to provide filters for radio frequency applications. For example, in accordance with an embodiment of the present invention, a radio frequency filter...
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7276995 |
Filter
A filter includes first and second line patterns each having a length substantially equal to ½ of the wavelength of a pass-band frequency, and a resonator that is interposed between the first and...
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7276910 |
Compact self-tuned electrical resonator for buried object locator applications
A self-tuning resonator for use in a transmitter apparatus for inducing alternating currents in a buried conductor. The resonator is dynamically tuned at frequencies below 500 kHz by exploiting the...
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7276996 |
Slotted dielectric resonators and circuits with slotted dielectric resonators
In accordance with the principles of the present invention, a resonator puck is provided with one or more vertical and/or horizontal, radial slits that improve the quality factor, Q, of circuits...
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7274273 |
Dielectric resonator device, dielectric filter, duplexer, and high-frequency communication apparatus
Electrodes ( 2 ) and ( 3 ) are formed on the front face ( 1 A) and the rear face ( 1 B) of a dielectric substrate ( 1 ). Fan-shaped apertures ( 4 A) and ( 4 B) forming a resonator ( 4 ) are formed...
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7271687 |
Dielectric resonator having a non-uniform effective dielectric permittivity along an axis of tuner displacement
The present invention relates to an improved tuning arrangement to linearise the sensitivity to frequency changes within a certain frequency range in response to tuner displacements relative to a...
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7268648 |
Dual mode band-pass filter
A dual mode band-pass filter includes a metallic film for defining a resonator, disposed on the first main surface of a dielectric substrate having first and second main surfaces, or inside of the...
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7268649 |
Partial suspended open-line resonator for parallel coupled line filters
The present invention disclosed a partial-suspended open-line resonator for parallel-coupled line filter for size shrinking and well resonant response. The partial-suspended open-line resonator...
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7253708 |
Radio frequency cavity resonatory with heat transport apparatus
An RF cavity resonator that includes: a resonator chamber for containing an RF field; an RF coupling element coupled to the resonator chamber for introducing the RF field into and extracting the RF...
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7245195 |
Coplanar waveguide filter and method of forming same
A plurality of one-quarter wavelength coplanar resonators 5 a to 5 d are formed in series on a dielectric substrate 1 , and coplanar input/output terminal sections 4 a and 4 b are formed...
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7245196 |
Fractal and space-filling transmission lines, resonators, filters and passive network elements
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...
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7231238 |
High temperature spiral snake superconducting resonator having wider runs with higher current density
Novel structures and methods for forming useful high temperature superconducting devices, most particularly resonators, are provided. Structures resulting in reduced peak current densities relative...
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7227432 |
MEMS resonator array structure and method of operating and using same
A plurality of mechanically coupled MEMS resonators that are arranged in an N×M MEMS array structure. Each MEMS resonators includes a plurality of straight (or substantially straight) elongated...
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7215226 |
Skew-symmetrical defected ground structure for parallel-coupled line filters
A system and method are disclosed for improving the reliability of parallel-coupled line filters. In one embodiment, a parallel-coupled line filter system is disclosed which comprises at least one...
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7205869 |
Magnetostatic wave device based on thin metal films, method for making same and application to devices for processing microwave signals
The integrated magnetostatic wave device comprises a substrate ( 1 ), a conductive ferromagnetic thin film ( 2 ) of thickness lying in the range about 250 nm to 450 nm and preferably being equal to...
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7193489 |
Radio frequency cavity resonator with heat transport apparatus
An RF cavity resonator ( 400 ) that includes: a resonator chamber ( 410 ) for containing an RF field; an RF coupling element ( 450, 452 ) coupled to the resonator chamber for introducing the RF...
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7183881 |
Cross-coupled dielectric resonator circuit
A cross-coupled dielectric resonator circuit. Resonator circuits in accordance with the invention may be used to build low-loss compact filters, oscillators, and other circuits, particularly...
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7183882 |
Microstrip band pass filter using end-coupled SIRs
The present invention relates to a microstrip band pass filter and, more specifically, to a microstrip band pass filter using end-coupled stepped impedance resonators that can be used in a...
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7181259 |
Resonator having folded transmission line segments and filter comprising the same
A resonator and filter including the resonator is disclosed. The resonator ( 100 ) includes an open conductive loop ( 100 ) with folded transmission line segments ( 124, 134 ) extending from the...
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7161449 |
Coplanar waveguide resonator
A center conductor having a length L 1 , which is equivalent in electrical length to one quarter wavelength, and ground conductors disposed on the opposite sides of the center conductor with a gap...
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7145404 |
Injection locked high frequency oscillator
A push-push high frequency oscillator comprises a pair of amplifiers for oscillation, a loop-shaped microstrip line for connecting inputs of the pair of amplifiers to each other and connecting...
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7142837 |
Multiple-section bandpass filter for broadcast communications
A multiple-section bandpass filter for broadcast communications includes adjacent waveguide segments with a perpendicular connecting segment between them to form a U-shaped signal path. The...
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7138891 |
Dielectric resonator device, dielectric filter, composite dielectric filter, and communication apparatus
In a dielectric resonator device, the outer shape of a support base is larger than the bottom surface of a dielectric core which is in contact with the support base, and the support base is fixed...
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7123118 |
Systems and methods for blocking microwave propagation in parallel plate structures utilizing cluster vias
Systems and methods are taught for blocking the propagation of electromagnetic waves in parallel-plate waveguide (PPW) structures. Periodic arrays of resonant vias are used to create broadband high...
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7119641 |
Tuneable dielectric resonator
A method of tuning a dielectric resonator uses a ferroelectric element to change the dielectric resonator electric field and hence the resonance frequency of the dielectric resonator.
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7119639 |
Dual mode band-pass filter
A dual mode band-pass filter includes a metallic film for defining a resonator, disposed on the first main surface of a dielectric substrate having first and second main surfaces, or inside of the...
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7113058 |
Resonator, filter, communication apparatus
A conductive film is provided on a dielectric substrate. The conductive film has conductor opening portions, which serve as inductive regions, and a conductor opening portion, which serves as a...
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