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JP2010098407A |
To provide a strip line filter for easily attaining achieving required filter characteristics and miniaturization, while satisfying arrangement constraint for a lower surface electrode pattern at a dielectric substrate.The strip line fil...
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JP2010098412A |
To solve the problem that a conventional stripline resonator has no sufficient Q value.The stripline resonator has a ground electrode 11 and a stripline electrode 13 opposed to the ground electrode 11 with a dielectric sheet 12 interpose...
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JP4458296B2 |
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JP4452444B2 |
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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JP4451119B2 |
There is provided a voltage controlled oscillator having a favorable shield characteristic between a strip line and a wiring pattern and being small in reduction of inductance and Q. The voltage controlled oscillator comprises a circuit ...
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JP4447813B2 |
The invention relates to a dielectric resonator oscillator, comprising a dielectric resonator contained in a resonant cavity in order to generate a signal oscillating at a predetermined central frequency, the dimensions of the resonator ...
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JP2010074758A |
To provide a magnetostatic wave oscillator which is large in the variable width of an oscillation frequency and quick in drawing time until signal fixing.The oscillator includes a resonator 5, having a resonance frequency varying with ma...
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JP4443603B2 |
A pot (21) has a first material with a first temperature expansion coefficient (TEC). A cover (22) has a second material with a second TEC greater than the first TEC. If the temperature rises, the pot expands and the cover distorts so th...
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JP4442066B2 |
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JP4442052B2 |
A high-frequency filter device including at least one filter to be connected to a high-frequency stage of a wireless apparatus, in which the filter includes a voltage-controlled variable frequency resonance element which comprises a reso...
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JP4438253B2 |
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JP4436724B2 |
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JP4435433B2 |
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JP4426931B2 |
A plurality of one-quarter wavelength coplanar resonators (5a) to (5d) are formed in series on a dielectric substrate (1), and coplanar input/output terminal sections (4a) and (4b) are formed on the dielectric substrate at opposite ends ...
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JP4422055B2 |
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JP4422053B2 |
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JP2010041699A |
To improve sensitivity and resolution by optimizing a resonator in pulse electronic spin resonance.In a slot array resonator, a slot is provided on the circumference of a conductor cylinder, where a sample is put in, and projections are ...
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JP2010024082A |
To provide a dielectric ceramic composition for high frequency in which the specific dielectric constant is adjustable to 8-20, a Qfo value is large, the absolute value of the temperature coefficient "tau"f of resonant frequency fo is ad...
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JP4409165B2 |
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JP2010016767A |
To provide a balance filter circuit element which does not have a resonance point in a double wave of a signal frequency to be passed, and also to provide a circuit board and a circuit module, each having the filter.By setting an electro...
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JP4401586B2 |
A space is defined in a portion of an overlapping region where an open end portion of a resonant electrode and an inner-layer ground electrode, of a dielectric layer which is interposed between the resonant electrode and the inner-layer ...
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JP2010010814A |
To provide a band-pass filter which can be easily manufactured using an aperture for capacitive coupling capable of integrated manufacturing by machining as a coupling element for producing an attenuation pole.Waveguide resonators 2a and...
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JP4392633B2 |
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JP4387915B2 |
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JP4388778B2 |
The resonator comprises two triple-mode mono-blocks (10,12), each having metal plated dielectric blocks. An input/output probe is positioned at each dielectric block to transmit microwave signals. An aperture between the two blocks coupl...
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JP4384620B2 |
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JP2009290705A |
To provide a compact and characteristic control-enabled superconducting filter unit with a plurality of resonance purposes elements placed in multi-stage.The superconducting filter unit includes: a plurality of resonance purposes element...
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JP2009542096A |
The invention is a dielectric resonator circuit comprising a housing; first, second, and third resonators positioned substantially in a row within the housing with said second resonator positioned between the first and third resonators, ...
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JP4372118B2 |
A high-frequency magnetic material comprises an artificial medium having a structure in which a plurality of unit particles align in a matrix medium, wherein the unit particle is composed of a split ring type conductor, or a combination ...
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JP4369068B2 |
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JP4367660B2 |
A composite via structure in a multilayer printed circuit board (PCB) and also compact and shielded filters formed by the use of composite via structures as building blocks are provided. The composite via structure consists of two functi...
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JP2009268122A |
To provide a tunable matching circuit of low-loss in RF.A ferroelectric material is used in order to produce a low-loss tunable capacitor 32 and inductor 31 for using in a matching circuit 22. The matching circuit 22 is provided with a c...
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JP4362938B2 |
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JP4356803B2 |
A capacitance is formed between a ground electrode (109) of a ground electrode formation layer (103) and each of capacitor electrodes (111, 112, 113, 114) of capacitor electrode formation layers (102, 104). An even number of LC parallel ...
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JP4359279B2 |
A coplanar resonator which is comprised of a dielectric substrate, a center conductor formed in the surface thereof, and a ground conductor formed so as to surround the same center conductor, wherein the same center conductor is comprise...
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JP2009253914A |
To provide a high frequency module that suppresses deterioration in high frequency characteristics.The high frequency module has an insulating substrate 10 and a plurality of frequency adjusting parts 40-44 made of a metal film formed on...
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JP2009253894A |
To provide a compact high-frequency band pass filter in a low loss and a narrow band in spite of an easy manufacture and a low cost.The high-frequency band pass filter has a high-frequency circuit board for a dielectric provided with a g...
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JP2009246863A |
To enable stable oscillation to be performed under a desired oscillation mode when adjusting the frequency of an oscillator, by placing a metal plate between a dielectric resonator and a nonlinear element which are placed on a substrate ...
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JP4348587B2 |
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JP4338892B2 |
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JP4340021B2 |
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JP4334237B2 |
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JP4336693B2 |
An optical microresonator and method of forming same includes a microcylinder (200) and a circumferential coating (202) formed on the microcylinder. This coating has a higher index of refraction than the microcylinder and is of such thic...
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JP4336037B2 |
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JP2009215161A |
To provide a glass ceramic dielectric material capable of obtaining a calcined compact and a circuit member for high frequency wave which can be calcined at a temperature not higher than 1,000C and have a high bending strength, whose res...
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JP2009203109A |
To provide a dielectric ceramic composition which achieves a dielectric ceramic having a high dielectric constant r and a high QXf value, and can be subjected to low temperature firing, and to provide a dielectric ceramic.The dielectric ...
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JP2009206545A |
To provide a bandpass filter having an extremely wide passband with a required width, and to provide a radio communication module and radio communication equipment using the bandpass filter.The bandpass filter includes: first and second ...
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JP2009206546A |
To provide a composite resonator allowing two resonance frequencies thereof to be set somewhat optionally.The composite resonator includes: a ground electrode 21 arranged on the lower surface of a laminate constituted by laminating a plu...
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JP4328240B2 |
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JP4325470B2 |
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