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7609130 |
High-frequency module including connection terminals arranged at a small pitch
In a high-frequency module, mounting lands arranged to mount at least one filter device having at least one set of an unbalanced terminal and two balanced terminals are provided at one side of a...
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7605678 |
Multiple-mode dielectric resonator, dielectric filter, and communication device
A multiple-mode dielectric resonator in which a through hole is formed in a substantially cubic dielectric core so as to pass through opposing surfaces thereof. A conductive support bar is inserted...
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7583165 |
High Q cavity resonators for microelectronics
A cavity resonator is provided which includes a shielded enclosure enclosing a volume and a unitary conductor disposed within the volume, the unitary conductor having a first inductor portion and a...
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7583164 |
Dielectric resonators with axial gaps and circuits with such dielectric resonators
A dielectric resonator with an air (or other dielectric) gap axially interrupting the body of the resonator and circuits employing such resonators. Preferably, the resonator body is conical or a...
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7573357 |
Coupling lines for a YIG filter or YIG oscillator and method for producing the coupling lines
A coupling conductor for a YIG filter or YIG oscillator, which may be produced from a metallic foil by eroding, laser cutting and/or etching of a metallic foil. The coupling conductor includes at...
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7573355 |
Integrated bandpass/bandstop coupled line filter
An apparatus and method for attenuating selected frequency bands in a microstrip filter having a plurality of microstrip resonators. The filter comprises plural resonators, a first of the plural...
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7565188 |
Superconducting filter device having disk resonators embedded in depressions of a substrate and method of producing the same
A superconducting filter device is disclosed that is able to prevent current concentration and improve electrical surface resistance. The superconducting filter device includes a first dielectric...
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7564190 |
Light source device and image displaying apparatus using the same
A light source device comprises a waveguide, an electrodeless lamp, a probe, and conversing means. The waveguide is formed to contain a medium enabling a microwave to resonate and has a surface and...
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7561011 |
Dielectric device
A dielectric device includes a dielectric substrate and a resonator unit. The resonator unit includes first and second holes. The first hole opens on a first surface of the dielectric substrate and...
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7557678 |
Base body for a YIG filter or YIG oscillator
A base element for a YIG band-pass filter or a YIG oscillator is formed from a non-magnetic material and comprises filter chambers, which are formed in the base element, wherein the filter chambers...
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7551045 |
Dual channel band-pass filter
A dual channel band-pass filter ( 10 ) includes an input portion ( 100 ), a first resonator ( 140 ), a second resonator ( 160 ), and an output portion ( 120 ). The input portion is used for...
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7545240 |
Filter with multiple shunt zeros
A filter including at least two resonator through-holes defining apertures in the top surface surrounded by respective plates which in combination with the through-holes associated therewith define...
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7545235 |
Dielectric resonator filter assemblies and methods
A unitary resonator assembly for use in dielectric resonator filters and multiplexers. The unitary resonator assembly comprises a plurality of resonators joined by bridges, where the resonators and...
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7542007 |
Antenna, earphone antenna, and broadcasting receiver including earphone antenna
An antenna of the present invention includes a coaxial cable, antenna elements ( 3 a and 3 b ), and an unbalanced/balanced converter. The unbalanced/balanced converter has a high-pass circuit...
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7541893 |
Ceramic RF filter and duplexer having improved third harmonic response
A duplexing filter suitable for use in a mobile communication system. The filter has a core of dielectric material with several through holes that define resonators. The core has metallized...
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7538639 |
Low-pass filter
A filter includes an input portion, a low-impedance transmission portion, a high-impedance transmission portion, and an output portion. The input portion receives electromagnetic signals. The...
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7538638 |
Resonator, filter, and communication unit
A resonator, a filter, and a communication apparatus that can be easily miniaturized even if the resonant frequency is relatively low are provided. Conductor layers are laminated in the state in...
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7528688 |
Ferrite-piezoelectric microwave devices
Devices for modification of a microwave signal using a magnetically saturated ferrite magnetoelectric device with electrical control are disclosed. The device is useful for microwave resonators,...
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7528686 |
Tunable filter utilizing a conductive grid
A tunable filter includes a first resonator; a second resonator; and, a conductive grid assembly electrically coupled to the first and second resonators and coupled to ground. The conductive grid...
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7525401 |
Stacked filter
A stacked filter includes an array of resonant sections, the resonant sections adjacent each other being electromagnetically coupled, a first resonator electromagnetically coupled to the resonant...
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7518472 |
Transmission line connecting structure and transmission/reception device
A transmission line having a slot line with a slot formed on a front surface electrode on a dielectric substrate, and two such slot lines are positioned with the front surface electrodes separated...
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7508287 |
Band-pass filter
The present invention provides a band-pass filter having: a first substrate; a second substrate; an input line; an output line; a ground layer; and an electromagnetic wave absorptive layer, the...
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7504912 |
Basic body for a YIG filter with eddy current suppression
A base body for a YIG bandpass filter configured from a non-magnetic metal and including filter chambers, which are configured in the base body and contain YIG elements. Cavities and/or radial...
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7495532 |
Systems and methods for blocking microwave propagation in parallel plate structures
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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7495530 |
Dual-band filter
A dual-band filter ( 10 ) is provided. The dual-band filter includes an input line ( 100 ), a first transmission line ( 140 ), a second transmission line ( 160 ), a third transmission line ( 180 ),...
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7492243 |
Planar circuit, high-frequency circuit device, and transmission and reception apparatus
A planar circuit having a conductive film on either main surface of a substrate. The conductive film on one of the main surfaces is patterned with two-dimensionally and repeatedly arranged unit...
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7486162 |
High frequency filter
An improved high frequency filter of coaxial construction comprises one or more resonators having an electrically conductive internal conductor configured as an internal conductive tube and an...
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7486161 |
Reverse-phase cross coupling structure
A reverse-phase cross coupling structure includes a base, which has a resonance chamber, resonators vertically arranged in parallel in the resonance chamber, and coupling portions respectively...
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7479849 |
Dielectric resonator device, oscillator and transmitter-receiver apparatus
A dielectric resonator device including a circuit substrate with a top surface provided with transmission lines, and a bottom surface provided with a ground electrode; a dielectric substrate with...
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7471173 |
Resonator, filter, nonreciprocal circuit device, and communication apparatus
A dielectric substrate is provided with first and second conductor openings communicating with each other via a first slit, and third and fourth conductor openings communicating with each other via...
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7471172 |
Microwave transmission unit including lightning protection
Microwave transmission unit, especially a microwave filter ( 1 ), and including a cabinet ( 2 ) with a first coaxial connector ( 3 ) and a second coaxial connector ( 4 ), where both coaxial...
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7468642 |
Multi band pass filters
A multi-band band pass filter, including: first and second multi-order asynchronous resonators connected to each other by a coupling resonator and connected to respective first and second matching...
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7466970 |
Arrangement for dividing a filter output signal
An arrangement for dividing the output signal of the antenna filter of a radio receiver to two different paths, such as two parallel low-noise amplifier branches of a base station. The divider...
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7456712 |
Cross coupling tuning apparatus for dielectric resonator circuit
The invention is an apparatus and technique for tuning the cross coupling of resonators in a dielectric resonator circuit. A cross coupling element such as a coaxial cable having a first end...
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7453336 |
Coupling structure for cylindrical resonators
A filter module suitable for the filtering of electromagnetic waves includes a dielectric cylindrical resonator and one or more lines that supply or draw off electromagnetic waves to or from the...
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7449980 |
Discrete voltage tunable resonator made of dielectric material
A voltage tunable resonator is provided, including a dielectric base made of a dielectric material having at least one of a voltage dependent dielectric constant and piezoelectric characteristics....
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7449979 |
Coupled resonator filters formed by micromachining
A resonator filter assembly is provided having a first wafer ( 102 ), a second wafer ( 104 ) and a third wafer ( 106 ). A plurality of pits are etched in the first and second wafer ( 102, 104 ) and...
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7444129 |
Comb-line wireless filter
A comb-line wireless filter ( 5 ) includes an input end ( 505 a ), an output end ( 505 b ), a first transmission line ( 501 b ), a second and third transmission line ( 501 a, 501 c ) each having a...
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7443363 |
Compact dielectric resonator antenna
A dielectric radiator antenna arrangement for a communication device having a ground plane is provided. The antenna arrangement may include a dielectric volume having a central axis normal to the...
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7443358 |
Integrated filter in antenna-based detector
An antenna system includes a dielectric structure formed on a substrate; an antenna, partially within the dielectric structure, and supported by the dielectric structure; a reflective surface...
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7439828 |
Tunable filter, duplexer and communication apparatus
Dielectrics fixed on holders respectively provided at semi-coaxial cavity resonator stages are movably inserted through an outer conductor. The holders projecting out of the outer conductor are...
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7429962 |
Millimeter-wave transreflector and system for generating a collimated coherent wavefront
A planar multi-layer transreflector for generating collimated coherent energy comprises one or more of insulating layers between two or more metallic layers. The transreflector substantially...
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7417518 |
Dielectric resonator
A dielectric resonator is disclosed. In one embodiment, the resonator includes i) a conductive case having a plurality of walls which together define an inner space, ii) a substrate placed at the...
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7417517 |
Method and apparatus for a communications filter
A method and apparatus for a highpass filter structure using transmission line construction which has multiple output tabs for selection of corner frequencies utilizing a plurality of resonators...
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7400212 |
Self-tuned active bandpass filters
An automatically tuned on-chip active continuous-time real bandpass filter operates on a differential signal while simultaneously being tuned using a common-mode (CM) reference signal, which...
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7397332 |
High-frequency dielectric ceramic composition, dielectric resonator, dielectric filter, dielectric duplexer, and communication apparatus
A high-frequency dielectric ceramic composition that has excellent dielectric properties, such as a large ε r , a large Q-value, and a small absolute value of τ f , even in a high-frequency...
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7397329 |
Compact tunable filter and method of operation and manufacture therefore
An embodiment of the present invention provides an apparatus, comprising a tunable filter with a plurality of bond wires connecting voltage tunable dielectric capacitors to an RF ground and serving...
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7388458 |
DC extracting arrangement and a filter
The present invention relates to a DC extracting arrangement in a RF filter used for extracting a DC voltage and/or a low frequency signal (DC/Com. signal) superimposed on a RF signal. The DC/Com....
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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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7372373 |
Embedded antenna and filter apparatus and methodology
Apparatus and methodology are disclosed for providing effective transmission of data to and/or from an electricity meter by providing embedded radio frequency components. An antenna and stripline...
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