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JP2003264405 |
To provide a transmission line with less leakage of an electromagnetic field and to provide electronic components or electronic equipment with satisfactory high frequency characteristics using the transmission line.The transmission line ...
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JP3472495 |
To obtain a radial combination single pole N-throw microstrip switch suppressing an insertion loss at millimeter wave frequency. A microstrip switch 60 includes N-number of input switch arms 62-72 and one output port 74 formed at a micro...
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JP2003257206 |
To provide an outside air shut-off device of an electrodeless illumination apparatus which prevents entering of a foreign matter in the light-emitting space and damaging of the mesh screen, by sealing so that the outside air may not ente...
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JP3467840 |
PURPOSE: To obtain a reversible circuit element which can be miniaturized regardless of the sizes of the values of matching capacitance. CONSTITUTION: A circulator 1 has a multilayer substrate 3 for forming a center electrode 16a and cap...
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JP2003249807 |
To improve adhesion strength to a sticking surface, even if a connector part of a film antenna is attached to a member with a curved surface to be stuck.A film antenna 1 is provided with a conductive printed circuit 5 on a film substrate...
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JP2003242472 |
To provide an antenna pattern forming method for an IC chip mounted on a web, a forming method for a print circuit and a package body with an IC tug.This antenna pattern forming method to the IC chip mounted on a web includes (1) a proce...
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JP3465329 |
PURPOSE: To prevent the change in an output characteristic by baking a composite dielectric resonator formed by adhering junction window electrodes and outer conductors respectively overlapped with each other so as to bond them. CONSTITU...
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JP3464116 |
To provide the coupling structure that is easily manufactured by using a lamination technology with a small conductor loss and coupled easily with other transmission line. The coupling structure is used to couple other high frequency tra...
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JP3464109 |
To highly precisely provide high manufacture yield with less variance of a radiation characteristic by forming the pattern of a radiation metallized layer formed on the surface of a ceramic dielectric by means of an etching processing af...
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JP2003234602 |
To solve the problems that a component unit price is high for a SAW filter since a piezoelectric body itself is expensive and a fine working technique between electrodes is required and a size is large for a multilayer ceramic filter sin...
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JP3464191 |
To reduce individual difference in high-frequency loss due to resonator vessel by reducing the number of machining and surface processing man-hours and improving heat conductivity of the resonator vessel. A mirror plate part 52 and a wal...
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JP2003231972 |
To secure a satisfactory adhesion between a metallic oxide and a conductive film, and to improve resonance characteristics by reducing the conductor loss.This manufacturing method comprises (a) making a ceramic workpiece 1 with a flat su...
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JP2003229706 |
To provide a manufacturing method and a structure, by which a thin film layered electrode is formed on the outer circumferential surface of a columnar base.Caps (large) 4 are attached on both ends of a cylindrical base substrate 1, and t...
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JP3460507 |
To attain the reduction of Q value and the suppression of dispersion by sticking electrode paste on the outside face of resonance element in the form of rectangular pole and the inner surface of through hole, then, inserting an axial rod...
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JP2003228697 |
To provide a method for connecting conductive terminals for obtaining much higher reliability than a conventional manner by securely, stably and easily connecting the conductive terminals, and for sharply reducing costs by improving yiel...
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JP2003229779 |
To shorten adjusting times, to enable easy adjustments for obtaining desired characteristics, and to manufacture a filter module.A connection between a filter 10 and a device 20 is designed to connect a pin 12, equipped for the filter 10...
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JP3461886 |
PURPOSE: To provide a manufacturing method for an LC element and a semiconductor device which can be manufactured easily, the part assembling work in the post-process can be omitted, the LC element can be formed as a part of IC and SI, a...
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JP2003224413 |
To facilitate injection molding of secondary products and reduce wastes of materials, in an antenna element composed of injection molded circuit components of which the plating of electrically conductive coating on spiral shaped outer ri...
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JP3457589 |
To suppress the transmission loss in a transmission line for high frequency formed on the semiconductor substrate of low resistivity. This transmission line is provided with an insulating film 102 interposed between a signal line 103, a ...
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JP2003218626 |
To provide an antenna circuit with an excellent antenna characteristic.The antenna element 3 is configured with a first circuit layer 5 having a plurality of first lines 15 arranged in parallel with a wiring layer 13, a plurality of magn...
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JP2003216920 |
To provide a noncontact data communication medium ensuring firm and easy junction between conducting terminals to achieve much higher reliability of the junction than before, while enabling its cost to be reduced by the enhancement of yi...
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JP2003218620 |
To provide a method for manufacturing a planar antenna with high productivity.Ni plating 7 is applied to the entire surface of a long metallic plate 5, a masking tape is adhered to the surface of the Ni plating 7 at areas other than two ...
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JP2003209411 |
To provide a high frequency module incorporating a waveguide inexpensively with high performance.Opened rectangular through holes 114 are formed in two main surfaces of a first dielectric substrate 101, conductors 103 and 104 for groundi...
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JP3453853 |
PURPOSE: To form a conductor layer by calcining a hollow dielectric in a reducing atmosphere. CONSTITUTION: An organic adhesive is added to the powdery mixture obtained by wet mixture and dehydration drying of powder of a (Zr.Sn)TiO4 and...
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JP2003209422 |
To provide a performance stabilized folded antenna in which a danger to deform a radiation conductor is reduced in the case of molding a dielectric layer in the antenna to be packaged on a printed circuit board and formed by folding the ...
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JP2003209415 |
To provide the fine metal wiring of satisfactory characteristics while securing substrate insulation by sufficiently removing the unwanted portion of a power feeding metal film while preventing damage onto a substrate when removing the p...
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JP3451904 |
To provide a manufacturing method of the leakage waveguide where a wave shape is formed to a circular pipe with high accuracy without deforming or smashing slits. A circular pipe 2 with slits to be corrugated passes through a torus corru...
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JP2003204202 |
To provide a production method for a dielectric resonator filter which is excellent in frequency characteristics and has a widened a control range.The dielectric resonator filter is provided with a dielectric resonator 111 and a casing 1...
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JP2003204201 |
To stably make satisfactory the alignment of a dielectric and a high frequency transmission line even in mass-production.In a high frequency circuit having substrate having the high frequency transmission line and a dielectric resonator ...
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JP2003197454 |
To obtain a pressing holder for energizing, in which a contact load change by the bending strength of a wiring to a cutting edge can be removed and embedding by energizing, can be easily and stably conducted in a formation of an antenna ...
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JP2003198237 |
To provide a feed horn structure allowing a feed horn to be bonded with a horn cap, without whitening, cracks, etc., its manufacturing method, a converter having the feed horn surface and a satellite communication receiving antenna.The f...
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JP3449936 |
To provide a highly reliable waveguide slot antenna and also to provide a method for producing the antenna. A dielectric layer 1 is formed together with the metallic conductor layers 2a and 2b which cover the surface 1a and the back 1b o...
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JP2003188607 |
To provide a manufacturing method of thin nonreciprocal circuit elements incorporating capacitors.In the manufacturing method for nonreciprocal circuit elements, the ferrite material 1 is composed of sintered blocks of laminated thin fer...
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JP2003188623 |
To provide a method for manufacturing an antenna apparatus, molded from an insulating resin material into near cylinder, which is integrally molded with a near spiral antenna element.A conductive metal plate 10 is punched, and the ends o...
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JP2003188616 |
To provide a high-power directional coupler of low cost having a better performance characteristics compared with a high-power directional coupler of machined metal parts.The high-power directional coupler is formed of a substrate such a...
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JP2003188338 |
To make thickness small and prevent degrading of filter characteristic.This circuit board 1 is provided with a base board 4, a circuit 2 mounted onto the base board 4, a filter 5 arranged between the circuit 2 and the base board 4, and a...
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JP2003183893 |
To provide an apparatus and a method for rustproof treatment for chip-like parts whereby a rust preventive liquid can uniformly penetrate without causing the problem of cracks or chipping; the treatment time can be reduced; and the treat...
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JP2003179415 |
To provide a high precision, high-quality leakage waveguide.The cross section of a conductor 1 of the leakage waveguide is in a flat shape and is made of a smooth wall surface where irregular waves are omitted. Then, a slot 2 at a specif...
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JP3440513 |
PURPOSE: To provide a dielectric resonator whose productivity is improved. CONSTITUTION: This dielectric resonator 10 is provided with a box-like case 12 composed of a conductor such as metal or the like for instance and a cross- shaped ...
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JP3441974 |
To improve the yield and high-frequency characteristic of a semiconductor device by forming connection electrodes and transmission lines for high frequency on the side faces of a semiconductor circuit board. A circuit 2 containing an act...
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JP2003174311 |
To provide a method for manufacturing a chip antenna which can be made small in size and weight and low in height, can improve a resonance frequency accuracy and be manufactured inexpensively.In the method for manufacturing a chip antenn...
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JP2003168331 |
To provide manufacturing equipment for a high-frequency cable generating no shape change in a corrugated pipe in order to maintain and improve electric characteristics of a cable.This manufacturing equipment is equipped with a corrugatin...
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JP3438683 |
To provide a small-sized and highly reliable irreversible circuit element where high frequency components placed in a case can easily and surely be fitted without the need for a large-sized case for the irreversible circuit element and t...
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JP2003168915 |
To provide a method of manufacturing a twin loop antenna accurately at a low cost and to provide a twin loop antenna.A raw material is machined to obtain an antenna element 30 of continuously connected annular parts 31, 32 and straight p...
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JP2003168907 |
To provide a method capable of manufacturing thereby efficiently a leaky waveguide having a predetermined cross-section shape.The method capable of manufacturing thereby a leaky waveguide has a process for punching slots 2 in a flat meta...
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JP2003163517 |
To provide a dielectric resonator device such that bonding agents are not overflowed and therefore electric performance is stable.The dielectric resonator device includes a pillar-type dielectric resonator 1, and a pillar-type pedestal 2...
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JP2003152428 |
To sustain the reliability inexpensively and to prevent radiation efficiency from lowering.The small antenna comprises a core material 2a, i.e., a hard linear member, imparted with a specified shape corresponding to the resonance charact...
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JP2003152408 |
To provide a method of manufacturing a dielectric resonator which prevents a baked layer from breaking on the junction surface of the resonator with a stabilized quality and characteristics in the process of baking a green dielectric res...
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JP2003152429 |
To provide a planar antenna, and its manufacturing method, in which thinning and productivity are enhanced, labor required for installation work of an electric apparatus is saved, and desired antenna characteristics can be exhibited stab...
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JP2003142908 |
To manufacture a dielectric filter so that desired characteristics can easily be obtained by easily providing opening parts of respective resonators composed of through holes.A dielectric block 1 is formed having a through hole 2a with a...
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