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JP2011130448A |
To provide a compact and adjustable power divider and filter device.The power divider and filter device structure can particularly be used as an input circuit for an Input Multiplexer (IMUX) device used in telecommunication systems. The ...
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JP4711988B2 |
A superconducting disk resonator is disclosed that includes a dielectric base substrate having dielectric anisotropy, a disk type superconducting resonator pattern that is formed on the dielectric base substrate with superconducting mate...
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JP4707650B2 |
A superconducting tunable filter comprises a dielectric base plate; a patch-shaped resonator pattern formed of a superconducting material on the dielectric base plate; a top dielectric locally placed on the superconducting resonator patt...
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JP2011119841A |
To provide a distribution constant resonator capable of suppressing increase in loss of a main signal in the basic order resonant frequency, while oppressing a spurious component in the higher order resonant frequency.The distribution co...
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JP2011114601A |
To provide a filter apparatus having a high impedance which has full attenuation in the low-pass side of a pass band.A filter apparatus includes a ground electrode 2, arranged on a lower surface of a laminate 1, two resonator electrodes ...
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JP4698244B2 |
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JP4691853B2 |
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JP4691876B2 |
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JP2011103602A |
To provide a transmission line less in conductor loss, a high frequency device, and a method of manufacturing the transmission line.The transmission line 10 for transmitting high frequency signals includes: wiring 103 where a high freque...
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JP2011517253T |
A radial fin type filter has a ceramic vibrator arranged in at least one cavity wall surface. Since a vibrator is carried out as a hollow stick, an adjustment element can be inserted in an opening of the upper part of a stick in order to...
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JP4688289B2 |
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JP2011097393A |
To improve attenuation characteristics of a band pass filter on a high frequency side other than a pass band by devising the shield case structure of the band pass filter.In the band pass filter configured of a substrate 100 configured b...
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JP2011097463A |
To provide a coaxial band-pass filter compensating and reducing the temperature variations of a resonance frequency and electrical characteristics while maintaining a cutting property and a lightness and being can obtaining stable electr...
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JP4680469B2 |
The present invention is directed to a dielectric ceramic composition exhibiting a high unloaded quality factor and a small variation thereof. The dielectric ceramic composition of the invention containing Ba, Zn, and Ta, contains 100 pa...
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JP4680905B2 |
A mobile terminal can include a printed circuit board with a reference voltage conductor, an antenna coupled to the first side of the printed circuit board, and a parasitic resonator coupled to the second side of the printed circuit boar...
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JP4678076B2 |
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JP4678569B2 |
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JP4672871B2 |
The present invention relates to an arrangement in a cavity filter for tuning the frequency relationship of the filter or its coupling coefficient factor. The arrangement includes a self-locking screw that can be fitted in the filter cav...
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JP4666564B2 |
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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JP2011066603A |
To provide a cavity resonator that can simplify designing, improve mechanical reliability, restrain dielectric loss and restrain fluctuation of a resonant frequency of an electromagnetic field when temperature change is caused.The cavity...
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JP2011066822A |
To reduce a line length of a transmission line in a filter that prevents odd-numbered harmonics.The filter 3 includes stubs 20, 21 that branches from the transmission line 10 and resonance units 30, 30-1, 30-2, 31 that is electromagnetic...
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JP4655254B2 |
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JP4656196B2 |
An inductor includes a first air-bridge section and a second air-bridge section. The first air-bridge unit extends in a floating location over a substrate between a plurality of support locations on the substrate. The second air-bridge u...
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JP4654558B2 |
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JP4647138B2 |
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JP2011507312A |
The present invention relates to a resonator device having a stacked arrangement of laminated layers including a plurality of dielectric layers (3a, 3b, 3c), and at least one resonator (2) comprising a short-circuit electrode (4, 4'), a ...
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JP2011044900A |
To provide a filter device having less variations in passage loss of a signal.The filter device includes a metallic frame body 24 including: resonant elements 23 provided in a hollow casing 22 and having an opening 24a at the lower part ...
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JP4640227B2 |
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JP4643681B2 |
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JP2011035799A |
To provide a lightweight filter apparatus.The filter apparatus is equipped with: a hollow casing 13 to which an input connector 12 is connected; and a resonance element 14 provided inside the casing 13. The casing 13 is equipped with: a ...
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JP4634912B2 |
A variable resonator has a dielectric substrate 2, an input/output line 3 formed on the dielectric substrate 2, a first resonator 4 that has one end connected to the input/output line 3 and the other end grounded, and a second resonator ...
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JP2011029886A |
To adjust various kinds of frequency bands without deteriorating a Q-value by the trimming of a microstrip line.A voltage controlled oscillator includes a resonance circuit connected to the base of a transistor for oscillation. The reson...
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JP4628991B2 |
A distributed constant type filter includes a substrate including a part made of a first dielectric material having a first relative dielectric constant and a different-material part made of a second dielectric material having a second r...
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JP4614485B2 |
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JP2011010024A |
To reduce the occurrence of defective in manufacture of a TM mode resonator.In a TM mode resonator, a lid 5 constituting a case 3 together with a container body 4 includes an elastic layer 52 consisting of a plate-like elastic material, ...
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JP2011010154A |
To improve energy propagation efficiency in a line conductor.A line conductor KD used for propagation of an electric signal has a rectangular shape in the cross section, and at least one rounded corner among the four corners. The curvatu...
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JP4609744B2 |
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JP2010285319A |
To provide a dielectric porcelain composition for high-frequencies used in a dielectric resonator for the high-frequencies, having an r of ≤15, a Q at 10 GHz of ≥1,000, and a resonance frequency temperature characteristic (τf) of ±...
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JP4602240B2 |
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JP4600456B2 |
A filter being small and having a narrowband filter characteristic is achieved using interdigital-coupled resonators. A first resonator and a second resonator are configured using interdigital-coupled quarter-wavelength resonators respec...
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JP4596004B2 |
A high-frequency dielectric ceramic composition that has excellent dielectric properties, such as a large epsilonr, a large Q-value, and a small absolute value of tauf, even in a high-frequency region, such as a microwave region or a mil...
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JP4594441B2 |
A re-entrant resonant cavity 12 includes three parts 18, 19 and 20 which may be manufactured as metallized plastic components. The three parts 18, 19 and 20 are soldered to a multilayer PCB 23 using surface mount technology. The re-entra...
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JP2010273000A |
To provide an electronic tuning bandpass filter which has little insertion loss, a steep out-of-band attenuation characteristic and an optional narrow band to wide band passage characteristic, does not cause distortion due to a nonlinear...
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JP4589402B2 |
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 least one curved section, which at least ...
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JP4589920B2 |
Thermally induced frequency variations in a micromechanical resonator are actively or passively mitigated by application of a compensating stiffness, or a compressive/tensile strain. Various composition materials may be selected accordin...
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JP4591509B2 |
A filter element (100) includes a flat dielectric substrate (1), a ground electrode (13) on a back main surface of the dielectric substrate, resonant lines each having a shorting end in the vicinity of a boarder between a side of the die...
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JP4588823B2 |
The method involves moving a strand (1) by a resonator housing (4) made of a metallic material, and supplying microwaves to the housing. A working temperature of the housing is detected by a temperature sensor (9) and maintained at a con...
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JP4587768B2 |
To prevent a current from locally concentrating, to realize stable high frequency transmission characteristics and to make current characteristics compatible with power characteristics, in a superconducting device. The superconducting de...
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JP4582311B2 |
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JP4582340B2 |
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