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7388457 |
Dielectric resonator with variable diameter through hole and filter with such dielectric resonators
In accordance with the principles of the present invention, a dielectric resonator is provided with a longitudinal through hole with a diameter that varies as a function of height of the resonator...
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7378925 |
Dielectric resonator, dielectric resonator frequency adjusting method, and dielectric resonator integrated circuit
An oscillator comprising a dielectric resonator (DR) has a high controllability and reproducibility of coupling between the dielectric resonator (DR) and an oscillation circuit, and an integrated...
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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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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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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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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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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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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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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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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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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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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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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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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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7094720 |
Dielectric ceramic composition and dielectric resonator made from the composition
A dielectric ceramic composition is provided which exhibits a high unloaded quality factor (Q u ) and permits regulation of the relative dielectric constant (ε r ) and the temperature coefficient...
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7091801 |
Micromechanical resonator having a metal layer surrounding a cylinder formed in a base layer
The invention relates to a micromechanical resonator having a bondable resonance body and a method for fabricating a micromechanical resonator for semiconductor components. The invention provides...
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7078990 |
RF cavity resonator with low passive inter-modulation tuning element
A tunable RF cavity resonator having reduced generation of passive inter-modulation, the tunable RF cavity resonator including a cavity body, a fixed tuning post at a first end of the cavity body,...
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7075392 |
Microwave resonator and filter assembly
A half wave dielectric resonator assembly including a resonator cavity having a top surface and a bottom surface, an elongated cylindrical dielectric resonator positioned within said resonator...
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7075314 |
Method and apparatus for measuring complex dielectric constant of dielectric
An electromagnetic wave is input to a resonator 14 filled with a dielectric and a gas, and a resonance frequency, an insertion loss and a half-power width in the resonance mode of the...
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7068127 |
Tunable triple-mode mono-block filter assembly
The present invention incorporates triple-mode, mono-block resonators that are tunable. Four novel and unobvious methods of tuning are disclosed. The first tuning method is to mechanically grind...
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7057483 |
High-frequency circuit device and high-frequency circuit module
A high-frequency circuit device includes a dielectric member 1 , a shielding conductor 2 surrounding the dielectric member 1 , a support member 3 for fixing and supporting the dielectric...
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7057479 |
Dielectric filter
A dielectric filter is provided with a dielectric multilayer structure formed by layering two or more dielectric layers which have different relative permittivities, at least one feeding electrode...
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7056852 |
High-frequency dielectric ceramic composition, dielectric resonator, dielectric filter, dielectric duplexer and communication system
A high-frequency dielectric ceramic composition that has a high Q-factor as well as a large relative dielectric constant, and in which temperature coefficient of the resonant frequency (τ r ) can...
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7043115 |
Tunable optical filter
A tunable filter having a resonator with a resonant frequency dependent upon a variable gap is provided. The variable gap may be controllably altered by use of an actuator. The resonator is a high...
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7042314 |
Dielectric mono-block triple-mode microwave delay filter
A delay filter uses the dielectric mono-block triple-mode resonator and unique inter-resonator coupling structure, having smaller volume and higher power handling capacity. The triple-mode...
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7026893 |
Dielectric resonator having a multilayer structure
A multi-layer dielectric resonant device has a dielectric resonator and a microstrip line to be coupled to the dielectric resonator. The dielectric resonator includes a first dielectric layer, a...
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6995636 |
In-band-flat-group-delay type dielectric filter and linearized amplifier using the same
A small in-band-flat-group-delay type dielectric filter having low-loss characteristics with a small amplitude deviation and uniform-group-delay frequency characteristics is obtained, which enables...
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6975181 |
Dielectric resonator loaded metal cavity filter
A new type of dielectric resonator loaded metal cavity filters that are compact and resonate only the desired frequency, along with a method of making such filters. The more compact dielectric...
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6965283 |
Dielectric resonator device, communication filter, and communication unit for mobile communication base station
A dielectric resonator device includes two dielectric resonators resonating in first and second resonant modes and a partitioning plate which partitions the two dielectric resonators. Slits S are...
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6954124 |
High-frequency circuit device and high-frequency circuit module
A high-frequency circuit device includes a dielectric member 1 , a shielding conductor 2 surrounding the dielectric member 1 , a support member 3 for fixing and supporting the dielectric...
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6946933 |
Dielectric loaded cavity for high frequency filters
The dielectric loaded cavity for high frequency filters consists of a metal container housing s dielectric block held in position by supporting plates, that also sustains coupling and tuning...
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6943651 |
Dielectric resonator device, high frequency filter, and high frequency oscillator
A dielectric resonator device includes a dielectric substrate. Electrode films are formed on the front and back surfaces of the dielectric substrate, respectively. A TE010-mode resonator is...
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6940371 |
High frequency dielectric ceramic composition, dielectric resonator, dielectric filter, dielectric duplexer, and communication device
A high frequency dielectric ceramic composition includes: as a major component a composition which contains a rare earth element (Re), Al, Sr, and Ti as metal elements and has a composition formula...
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6937118 |
High-frequency circuit device, resonator, filter, duplexer, and high-frequency circuit apparatus
A high-frequency circuit device serving as a resonator includes a substrate and an electrode film which is formed on the surface of the substrate and which includes a conductive film and a...
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6933811 |
Resonator and high-frequency filter
The resonator of the present invention includes a cylindrical dielectric and a conductor film covering the surface of the dielectric in close contact therewith. The conductor film is constructed of...
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6930571 |
Dielectric filter, dielectric duplexer, and communication apparatus
A dielectric filter includes a dielectric block having a plurality of through holes; an outer conductor provided on an outer surface of the dielectric block; and inner conductors provided on inner...
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6909339 |
Mounting structure of dielectric filter, dielectric filter device, mounting structure of dielectric duplexer, and communication device
An excitation hole is provided inside a dielectric block and, on the outer surface of the dielectric block, an input-output terminal electrically connected to an inner conductor inside the...
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6903627 |
Dielectric resonator, filter, duplexer and communication device
The present invention provides a dielectric resonator having increased reliability with respect to thermal cycle fatigue of a joint between a conductive cavity and a dielectric core disposed in the...
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6900150 |
Ceramic composition and method
A ceramic material suitable for use as a microwave band filter for telecommunications equipment comprises oxides of titanium, barium, neodymium, samarium, and optionally, bismuth, and containing,...
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6897741 |
Dielectric duplexer and communication apparatus having filter with different degrees of multiplexing
A small dielectric duplexer using a small TM mode dielectric resonator having a low loss is formed. On the transmission side thereof, TM double mode dielectric resonators and a TM triple mode...
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6891452 |
High-frequency circuit device and transmitter/receiver
A high-frequency circuit device includes a dielectric substrate. A planar conductor is provided on each of top and bottom surfaces of the dielectric substrate and a slot line is formed on the top...
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