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JP4326346B2 |
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JP2009194646A |
To provide a microwave branch switch circuit capable of switching low loss and propagation between multipoles at a high speed.Individual ports and variable resonators 105, 106 and 107 connected through capacitors 108, 109 and 110 are arr...
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JP4319763B2 |
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JP4315859B2 |
A superconducting filter including input/output feeders formed on one surface of a dielectric substrate, resonator patterns formed on one surface of the dielectric substrate, and a dielectric plate mounted on the one surface of the diele...
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JP4310469B2 |
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JP4307084B2 |
The present invention relates to an electrically controllable/tunable microwave device comprising a ferroelectric substrate with a variable dielectric permitivity and conducting electrodes, arranged on said substrate, and the capacitance...
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JP4309902B2 |
In resonant elements 102 to 105 constituting a resonant circuit, an uncontrolled cross coupling which exists between two resonant elements is controlled by using a coupling element 106 which is newly arranged between the resonant element...
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JP4303369B2 |
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JP2009165022A |
To provide a magnetostatic wave oscillator which is adaptable to many frequency bands while using the fact that a cavity distance between the magnetic poles of the magnetostatic wave oscillator contributes to determining the strength of ...
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JP4299997B2 |
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JP4298173B2 |
A dielectric resonator antenna (100) having a resonator (104) formed from a dielectric material mounted on a ground plane (108). The ground plane (108) is formed from a conductive material. First and second probes (112, 116) are electric...
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JP4291488B2 |
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JP4288656B2 |
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JP4287388B2 |
A coupling structure for coupling to a circuit portion (6) in a coplanar-waveguide circuit (1) having ground conductors (2,3) at both sides is disclosed. A signal input/output line (4) is provided at the center of the coplanar-waveguide ...
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JP2009141875A |
To provide a resonance circuit continuously varying a resonant frequency over a wide range.A resonance apparatus, which varies a resonant frequency in accordance with a control voltage, includes: an insulator with a liquid reservoir and ...
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JP4284832B2 |
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JP4283055B2 |
A microwave filter comprising a plurality of resonator cavities (1, 10) arrangement in more than two adjacent rows and more than two adjacent columns; each resonator cavity is coupled with at least a sequential adjacent resonator cavity ...
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JP4284865B2 |
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JP4286304B2 |
The present invention quantifies and reduces losses in tunable bandpass filters having ferro-electric capacitors. Given a required insertion loss and the quality factor of a resonator, the geometric losses resulting from a particular top...
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JP4280160B2 |
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JP4281549B2 |
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JP4280131B2 |
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JP4275512B2 |
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JP2009124232A |
To provide an inexpensive dielectric resonator component capable of preventing deterioration in performance by suppressing a temperature rise even if a high power signal of high frequency is inputted to operate it, and of having a reduce...
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JP4268205B2 |
The present invention quantifies and reduces losses in tunable bandpass filters having ferro-electric capacitors. Given a required insertion loss and the quality factor of a resonator, the geometric losses resulting from a particular top...
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JP2009517920A |
A bandpass filter includes a combline bandpass filter including tapped-line input and output terminals, at least three resonators, and a loading capacitor for each resonator. The bandpass filter further includes a plurality of loading in...
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JP4259578B2 |
In a semi-coaxial cavity resonator in which an inner conductor is fixed to an outer conductor with a screw, an inner cavity where the inner conductor does not engage with the screw is provided to extend from a bearing surface of the inne...
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JP4250718B2 |
A filtering device is disclosed that can be made compact and has wide-band band-pass characteristics. The filtering device includes a first filtering unit that is composed of a distributed constant circuit and is capable of eliminating a...
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JP4246482B2 |
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JP2009071445A |
To provide a dielectric resonance device adopting a configuration, where a distance between a dielectric resonator and a frequency regulator is shorter, as compared with a conventional device, allowing a filter that uses the dielectric r...
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JP4249376B2 |
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JP4247992B2 |
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JP4243561B2 |
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JP4243405B2 |
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JP4242738B2 |
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JP4241844B2 |
The energy and signal transmission device uses a number of electromagnetic coupling elements (3a,3b,3c,4), associated with the relatively displaced components between which electrical energy and signals are transferred. Each coupling ele...
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JP4238554B2 |
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JP4241073B2 |
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JP4230467B2 |
A high-frequency filter includes a substrate; a ground conductor disposed on one main surface of the substrate and having an opening; a center conductor making up a coplanar line resonator together with the substrate and the ground condu...
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JP2009038806A |
To provide small-sized RF components.A plurality of components for guiding or controlling RF and microwave radiation are integrated by a plurality of electrodepositions and/or a plurality of laminated materials. The components include a ...
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JP4225661B2 |
To improve the electric power resistance of a superconducting filter which uses a conductor film pattern, made of a high-temperature superconductor by greatly relaxing the electric field concentration of a conductor film pattern and to s...
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JP4217709B2 |
A dielectric resonator antenna which emits an electric wave by having a dielectric body resonate is disclosed. A magnetic material is contained in the electric body, thereby increasing the relative permeability to more than 1 and lowerin...
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JP4220886B2 |
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JP4217899B2 |
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JP4216739B2 |
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JPWO2006137470A1 |
A plurality of 1/4 wavelength resonators 3A1 arranged on a rectangular parallelepiped-shaped dielectric block 2 along its side surfaces 2c and 2d and extending so as to be parallel to the side surfaces 2c and 2d and parallel to each othe...
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JP2008312112A |
To solve the problem that, in mass production of a dielectric resonator oscillator (DRO), it is necessary to highly accurately adjust a position at which a dielectric resonator is to be installed, so that the time required for assembly m...
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JP2008301222A |
To adjust the resonance frequency of a dielectric multilayer substrate or a resonator to a desired value, in a short period of time.AS for the frequency adjustment method of the resonator 10 where dielectric layers are laminated vertical...
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JP2008301374A |
To provide a method of manufacturing an oscillator capable of reducing electromagnetic wave loss in a resonant condition and improving an output power, and to provide the oscillator.An oscillator having gain medium 202, which has a gain ...
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JP4190480B2 |
A compact superconducting filter device can easily change a bandwidth and a center frequency without changing a pattern or shape of the filter. A filter pattern is formed on a substrate made of a dielectric material. The filter pattern i...
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