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JP3923405B2 |
To provide a downsized low noise converter which is employed, in particular, for a satellite broadcast reception system. In the low noise converter, a shield chamber 20a in a metallic shield box 20 contains two local oscillators 13a, 13b...
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JP3918758B2 |
To provide a high frequency circuit element , a resonator, a filter, a duplexer, and a high frequency circuit apparatus, which are small-sized and allowed to cause a low loss . An electrode film comprising a conductor film and a dielectr...
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JP3917280B2 |
To realize prevention of positional deviation due to a gas pressure or the like when heated by employing a simple configuration. In the case of mounting a resonator on a substrate 3, an adhesive 9 is applied onto a green mask 8 to cover ...
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JP2007512790A |
This invention provides a laser trimming method for tuning the frequency of a spiral resonator, and for improving the characteristics of a high temperature superconductor filter comprised of high temperature superconductor spiral resonat...
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JP3915499B2 |
To miniaturize the shape of an antenna for a high frequency to be used for various radio communication equipment. This ring type antenna is constituted by connecting the both edges (b) and (c) of a TEM mode transmission line constituted ...
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JP3914401B2 |
To provide a millimeter wave band oscillator of low-phase noise, a transmission and reception module, where it is used in a partial signal generator, and a radar device at a low cost. This equipment has a resonator, which is composed of ...
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JP3911938B2 |
To provide a microwave dielectric porcelain composition having high relative dielectric constant εr and a high Qf value, whose temperature coefficient τf of resonance frequency f0 is easily controlled. The microwave dielectric porcelai...
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JP3911283B2 |
To reduce a dispersion in production of a laminated dielectric filter in which both minimization and improvement of performance can be attained. In three resonant electrodes 16A, 16B, 16C, respective intervals d1 and d2 of adjacent reson...
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JP3910978B2 |
To initiate a stable TE011 resonance mode having a specified frequency in a cavity resonator. A microwave cavity resonance device for an atom oscillator is equipped with a couple of support members 21 and 22 which are provided nearby bot...
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JP2007104070A |
To provide a method of controlling the coupling between resonators capable of arranging the resonators adjacently and controlling the coupling including an opposite code easily.Between a pair of resonators, an inductive coupling means 30...
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JP3905993B2 |
To obtain a dielectric porcelain composition for high frequency capable of approaching contract initiation temperature by lowering contract initiation temperature and suppressing warping and strain even when burned simultaneously with a ...
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JP3906195B2 |
To provide an excellent dielectric duplexer capable of sufficiently attenuating a high frequency component. The dielectric duplexer 1 is configured to include an antenna terminal 11, a coaxial dielectric resonator 2 with a transmission t...
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JP2007509553A |
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 dielectric resonator. The lines terminate ...
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JP2007096939A |
To provide a resonator and a filter capable of achieving loss reduction.A first internal electrode 10 is embedded in a dielectric substrate 50. A second internal electrode 20 is embedded in the dielectric substrate 50 so as to face the f...
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JP2007096773A |
To provide a dielectric device capable of securing high flexibility in design while being made to be small in size and low in height.A first opening 41 of a resonation unit Q1 is to be opened in a third outer surface 23 and faced toward ...
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JP2007091496A |
To provide a BaRe2Ti5O14 or BaRe2Ti4O12 based dielectric ceramic obtained by combustion synthesis and having excellent sintering characteristics and a method of manufacturing the same.The dielectric ceramic is expressed by the compositio...
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JP3903781B2 |
To provide a composite laminated ceramic electronic part which is hardly delaminated and deformed at the interface in a practicable material, can be baked at a low temperature, and can achieve a low dielectric loss suitable for high freq...
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JP2007088916A |
To provide a dielectric resonator whose characteristics are stable, and to provide an oscillator.The dielectric resonator comprises a ceramic flat plate dielectric body, whose planar shape is a polygonal (quadrangle or higher) flat shape...
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JP2007087988A |
To provide a cavity for an optical microwave resonator which has a stable microwave excitation level as well as superb characteristics.A matching circuit 14a of a microwave generating circuit 14 is comprised of a bias BC to set the opera...
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JP3901130B2 |
To provide a resonator that is miniaturized by changing to step impedance and has high Qo, and to provide a filter having the resonator and a communication device. On a dielectric substrate 1, a conductive film 10 is formed. The conducti...
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JP3898560B2 |
To provide a dielectric ceramic composition of which temperature properties can be controlled at a high precision as use for high frequency parts, and to provide a dielectric ceramic. At least one kind of powder selected from Fe2O3, Cr2O...
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JP3891737B2 |
To make an oscillator module smaller in size. In this oscillator, oscillation circuit components are mounted on the front major side of a printed circuit board, having a dielectric layer in its inside, rear conductors are arranged almost...
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JP2007055828A |
To provide a dielectric ceramic composition capable of being fired at a low temperature, and an electronic component produced using the same.The dielectric ceramic composition is obtained by adding, against 100 mass parts of a (BaNdSm)Ti...
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JP3885826B2 |
The present invention provides a dielectric resonator device, an oscillator, and a transmitter-receiver apparatus having stable characteristics while requiring lower manufacturing costs. A circuit substrate 1 has a top surface 1A provide...
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JP3887662B2 |
To provide a resonance frequency variable resonator that reduces variations in an element function as much as possible, improves yields, and can reduce costs. The resonance frequency variable resonator comprises a fixed electrode 1; a mo...
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JP2007503122A |
A process for producing high temperature superconductor (HTS) mini-filters or coils in which the high temperature superconductor films are deposited on a layer of CeO2 on a substrate results in higher yields of mini-filters or coils.
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JP3877856B2 |
To obtain a semicoaxial cavity resonator which can prevent characteristic changes and faults originating from a difference in linear expansion coefficient between an internal and an external conductor. This resonator is equipped with a h...
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JP2007502088A |
The invention is a method and apparatus for dissipating heat in a dielectric resonator circuit in which resonators are mounted to an enclosure by highly thermally and electrically conductive supports, such as metal rods, that pass throug...
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JP2007028139A |
To provide a dielectric filter that obtains a high Q being the special feature of a coaxial type, attains downsizing and a low height by a lamination structure, and includes characteristics of a low loss and a high attenuation amount.The...
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JP2007013279A |
To improve the stability of temperature, and reproducibility at lower cost, as compared with conventional methods in a coaxial resonator.In the coaxial resonator, having an external conductor, and an internal conductor arranged in the ex...
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JP2007013253A |
To prevent the occurrence of short-circuit failures, without causing increase in the size of a multilayer ceramic electronic component.The process for manufacturing a multilayer ceramic electronic component comprises a step for forming p...
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JP2007013428A |
To provide a side couple type band pass filter for reducing any dielectric loss into zero, and for showing filter characteristics which are faithful to design specifications.This side couple type band pass filter is configured of: a grou...
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JP2007003444A |
To provide a cavity resonator for ESR that is compatible with a superconducting magnet device for generating a static magnetic field in the vertical direction, has a large variable range of resonance frequency, and has high Q value.The c...
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JP2007500465A |
The invention relates to a high frequency component with a substrate constructed of a plurality of dielectric layers and, between them, electrode layers having conducting track structures, in which substrate at least one capacitive eleme...
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JP3866716B2 |
A resonator is formed by forming a microstrip line having an electrical length corresponding to a lambda/2 wavelength on a dielectric substrate, forming both side portions of the microstrip line from the center thereof into spiral shapes...
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JP3864923B2 |
To provide a resonator apparatus for varying a coupling amount in two resonance modes of resonators selectively coupled by a partition plate, coupling the resonators only in one of the two resonance modes and blocking the coupling in the...
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JP3865970B2 |
To provide a porcelain composition having a dielectric constant whose temperature dependence is controlled in the microwave region. This porcelain composition comprises forsterite, calcium titanate and spinel in a ratio of their respecti...
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JP3861806B2 |
To provide a resonator, a filter, a duplexer and a communication apparatus which can be easily miniaturized and is provided with a desired Q characteristic corresponding to the manufacturing cost. Conduction paths 2a, 2b and 2c each roun...
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JP3860687B2 |
To provide dielectric porcelain of low specific inductive capacity and laminated body that can further lower the firing temperature than the conventional, lower the shrinkage-starting temperature nearly to the shrinkage- starting tempera...
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JP3856666B2 |
To downsize a resonator which is a component of a filter. A shape of a resonator pattern of the filter with the resonator formed on a board is configured to comprise a circular-arc part 221, first and second straight line parts 222, 223 ...
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JP3857243B2 |
To provide a filter circuit by which both real zero and complex zero of transfer function for group delay compensation can be realized and purely imaginary zero of transfer function for making the skirt characteristics steep by the atten...
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JP2006325117A |
To provide a magnetostatic wave oscillator automatically adjusting the oscillation frequency of a magnetic circuit for a magnetostatic wave element by automatically controlling current caused to flow to an exciting coil 10 and an FM coil...
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JP3851900B2 |
To provide a planar filter having a small occupied area and an excellent damping property. The planar filter comprises first and second U-shaped tip released transmission line resonators 103, 105 each having a shape bent in a U shape, an...
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JP2006317933A |
To provide an optical microresonator for imparting desired polarization for the purpose of bringing any polarization states into degeneracy.The optical microresonator is formed as a microcylinder 42 and a resonant waveguide 48 on the mic...
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JPWO2005006483A1 |
Provided are a TMO10 mode resonator device, an oscillator device, and a transmitter / receiver device that suppress the radiation of an electromagnetic field and have a high Q. Circular resonator electrodes 2A and 2B are provided on the ...
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JP2006320026A |
To provide an enhanced tunable f-e filter capable of providing a tunable range higher than a desired frequency domain through low I.L. and out-of-high-band rejection, and a method of designing said filter.The present invention quantifies...
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JP3848860B2 |
To join a cavity resonator, suitable for a planar circuit to the planar circuit of high frequency waves such as microwaves or milliwaves, so as to provide a high-performance planar circuit having small power loss. A circuit pattern 5 is ...
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JP3849148B2 |
PURPOSE: To obtain a dielectric ceramic composition for high-frequency having a high Q-value in a high-frequency band of higher than several GHz and excellent in electric characteristics in terms of being free from breakage of a large- s...
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JP3845394B2 |
To provide a high frequency module easily downsized and capable of outputting an electromagnetic wave in the balanced mode without the need for adjustment. The high frequency module is provided with a waveguide tube type waveguide 3 havi...
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JP3846464B2 |
To provide a dielectric ceramic composition showing small deterioration in Q value when its dielectric ceramic layer and inner conductor layer are simultaneously fired and excellent in microwave characteristics, and ceramic electronic co...
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