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JP2003115718 |
To provide a planar antenna and a manufacturing method thereof which has an applicability to the electromagnetic wave of a short wavelength, a good dimensional accuracy, a low cost, and an excellent productivity.The manufacturing method ...
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JP2003115645 |
To provide a stereoscopic circuit board such as an antenna or the like suitable for assembling to a mobile communication device such as a portable telephone or the like, which has a small voltage standing wave ratio (VSWR) and small warp...
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JP2003110323 |
To provide a dielectric resonator, that is improved in reliability with respect to the heat cycle fatigue of the junction between a conductive cavity and a dielectric core to be arranged in the cavity, without having to increase the mate...
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JP2003110314 |
To provide a laminated chip balun device, which can be reduced in size and man-hours for changing setups and manufactured at a low cost.A laminated chip balun device has a structure, in which two or more sets of λ/4 strip lines which ar...
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JP2003110326 |
To provide a method, by which a dielectric line can be manufactured efficiently with high reliability and accuracy.In this method, an opening 19 is formed in the part of a photosensitive resist material 13 corresponding to wing sections ...
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JP3416436 |
To attain miniaturization, to obtain high circuit Q and to fit for mass- production by forming plural electrodes conducted with the strip line in grooves for forming electrodes and constituting the strip line of a section form which is o...
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JP3416419 |
To provide the laminated type strip line resonator, suitable for mass- production in which miniaturization is attained and the Q is increased. In the laminated type strip line resonator, a 1st dielectric layer 1 whose major side is forme...
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JP2003101328 |
To provide a helical antenna that can reduce the number of manufacturing steps and has light weight and high rigidity.Unlike the conventional helical antenna manufacturing method in which a helical antenna is manufactured through two ste...
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JP3412607 |
To provide a method of manufacturing high-frequency magnetic materials preferably used for a high-frequency circuit equipped with a center conductor and the high-frequency magnetic material which are sintered in one piece and used for co...
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JP2003086728 |
To manufacture a membrane high-frequency circuit precisely and easily.A high-frequency circuit having a membrane structure comprises a metal substrate 1 having a hole, insulation material 2, transmission line 3, active elements 6, and a ...
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JP2003087035 |
To easily and surely join a front cover 1 and a rear cover 2 and seal its juncture 11 in a planar antenna apparatus for accommodating a planar antenna body B in an antenna cover A, where the front and rear covers 1 and 2 are combined for...
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JP2003087005 |
To provide a multilayer band-pass filter and its manufacturing method, which realizes a large L-value with a short resonance line length and a small number of lamination layers.The filter has a three-layer structure, composed of resonanc...
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JP2003087046 |
To provide an instantaneously-welded antenna.A coil is laid upon one end of a metallic seat, and the metallic seat and the coil are put in the combination hole of a plastic outer sleeve, and the metallic seat is provided with a heating f...
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JP2003087015 |
To prevent the opening of an inner-conductor formed hole having an approximately rectangular or approximately elongated circular sectional shape from unnecessarily expanding, reduce the time taken for the cutting process and prolong the ...
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JP2003078323 |
To provide an antenna which can be mounted on a surface and provides stable characteristics.The antenna comprises an element (11) composed of conductors, a connecting terminal (12) connected to the element, fixing terminals (13A-13C) not...
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JP2003078344 |
To provide an indoor wireless antenna which is not recognizable as an indoor wireless antenna without spoiling the neat appearance, and to provide a manufacturing method therefor.The method for manufacturing a ceiling panel antenna for a...
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JP2003078305 |
To provide a dielectric resonator which is used mainly for a high-frequency radio apparatus or the like such as a portable telephone, etc., especially, a strip line type of dielectric resonator which can use high-permittivity material hi...
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JP3407710 |
To provide a production method of a dielectric waveguide which is inexpensive in production cost, free from causing cracks or chips, and also allows making each dimension of a dielectric strip accurately. In the production method of the ...
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JP2003078342 |
To provide a chip antenna with a simple structure which is excellent in mechanical strength and does not cause peeling of a dielectric chip.The chip antenna is provided with an antenna conductor 10 consisting of a radiating portion 11 an...
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JP2003078302 |
To provide a reliable coaxial waveguide structure by preventing the breakage of a dielectric airtight window and its airtightness, and provide its manufacturing method.The coaxial waveguide tube structure possesses an outer conductor met...
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JP2003069320 |
To provide a manufacturing method with high reliability of manufacturing a nonradiative dielectric (NRD) guide with high performance such as a small electromagnetic wave propagation loss by enabling a dielectric line to be placed at a pr...
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JP2003069321 |
To provide a method of manufacturing a band pass microstrip filter without the need for an adjustment process of a center frequency of the pass band on the basis of a frequency characteristic measurement result through the measurement an...
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JP2003067701 |
To provide a non-contact communication medium capable of easily connecting a connecting terminal of an antenna coil and an antenna terminal of an IC module and highly reliably manufactured at low cost and to provide its manufacturing met...
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JP3402528 |
PURPOSE: To provide a miniaturized, thin and inexpensive concentrated constant type circulator. CONSTITUTION: This concentrated constant type circulator is composed of center conductor constitution parts 1a and 31a for which the plural s...
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JP2003060428 |
To provide a high-frequency circuit device which enhances reliability in electrical conduction, even if repeated bending stress occurs, in the high-frequency circuit device which uses a plane antenna. A Cu film layer 6 is formed on an or...
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JP3399409 |
To provide a complex circuit substrate which adjusts the physical relationship between a dielectric substrate and a magnetic substrate of an element part formed by an electrode pattern into an optional relationship and is miniaturized. R...
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JP2003046309 |
To provide a method for simply and surely manufacturing an antenna the manufacturing cost of which can considerably be reduced. In the method for manufacturing the antenna A where after a pressing smash tool P with narrow pressing projec...
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JP2003037347 |
To provide a method for forming a circuit pattern including an inexpensive thin line wiring part by improving a patterning method based on gravure printing method conventionally regarded as a method unsuitable for forming a circuit patte...
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JP2003037406 |
To reduce variations in the coupling among a plurality of transmission lines formed on both surfaces of a dielectric substrate for easily manufacturing a line coupler. A through-hole 5 is formed at a specific position on a dielectric sub...
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JP2003037427 |
To provide a method for manufacturing a RFID data carrier, having productivity higher than that of an etching method, without using expensive etching facilities. A first trimming die with a trimming blade having a part along one side edg...
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JP2003037421 |
To provide a surface mounting antenna, in which a radiating electrode of a prescribed resonance frequency is formed on a base. An electrode 11 is formed on all continuous four faces, such as a surface 10a, an edge face 10b, a rear face 1...
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JP2003032021 |
To provide a whip antenna used for portable radio communication equipment typified by portable telephones the upper stopper and the lower stopper mounted to the coil part of the whip part of which can be strongly fixed to the coil part w...
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JP2003025374 |
To provide a method for manufacturing a small-sized antenna wherein an antenna conductor pattern 10 and a dielectric molded object are integrated, by setting the antenna conductor pattern 10 to the cavity formed by molds 22A and 22B to i...
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JP2003023302 |
To provide a production method for cylindrical waveguide with which not only an axial ratio but also polarized wave conversion efficiency can be improved by arranging and fixing a dielectric board on a cylindrical waveguide with high pos...
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JP2003023305 |
To provide a central electrode assembly with which an insertion loss is reduced and electric characteristics are improved, a irreversible circuit element, communication equipment and a production method for central electrode assembly.A c...
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JP2003023307 |
To provide a irreversible circuit element and a production method therefor, wherein satisfactory characteristics are realized and a working process can be simplified.In the irreversible circuit element provided with a ferrite substrate 1...
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JP2003023313 |
To efficiently mold an accurate resin waveguide by injection molding.This device is provided with a resin feeding port G installed closely to a gate G1 and a runner for successively branching out resins fed from the resin feeding port G ...
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JP2003023312 |
To provide a production method for resin waveguide and a resin waveguide, with which the waveguide side in a waveguide requiring dimension accuracy can be molded from resins with high dimension accuracy.Inside the waveguide, on the side ...
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JP2003023311 |
To provide a production method for cylindrical waveguide and a cylindrical waveguide, with which the cylindrical waveguide of high radio wave propagation efficiency can be prepared while having an almost complete roundness inner peripher...
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JP2003023316 |
To provide an antenna, with which the bandwidth of a frequency band is widened.A radiating electrode 22 composed of a conductor board is integrated on the surface of a carrier 26 made of insulating resins by insert molding, and the radia...
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JP2003023303 |
To provide a production method for cylindrical waveguide with which not only an axial ratio but also polarized wave conversion efficiency can be improved by arranging and fixing a dielectric board on a cylindrical waveguide with high pos...
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JP2003019735 |
To ensure sufficient dimensional accuracy to a degree usable as the waveguide for the transfer device or common device of a microwave or milli- wave band transmitting-receiving antenna and to easily perform the elution work of a core.A s...
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JP3389868 |
To obtain a method for surely and automatically adjusting a characteristics of a dielectric filter in a short time by repeating an electric parameter extraction step, an adjustment amount calculation step and an adjustment step untill a ...
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JP2003013247 |
To provide an electroless copper plating bath, which can secure an adequate adhesiveness of a copper plated film even to the flat surface of ceramic with small roughness, and can manufacture an electronic component for high frequency hav...
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JP3385909 |
To improve the characteristic of a comb-line filter and especially to enhance a loss characteristic and a reflecting characteristic. A characteristic of a comb-line filter is improved by building a structure to proving a structure corres...
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JP2003008327 |
To make a meandering pattern 16 of antenna elements 14 of a small antenna hardly deformable and facilitate cutting gate protrusions 28 after injection molding of a dielectric material in a cavity of die into a dielectric molding 26 lamin...
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JP2002368532 |
To provide a micro-strip antenna which is improved for providing high gain at the zenith and at low angles in order to transmit/receive a signal at the zenith and at the low angles in the micro-strip antenna damaging the advantage of sho...
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JP2002368506 |
To obtain a central electrode assembly for stabilizing the crossed axes angle of central conductors and obtaining a desired electric characteristic and also to provide its production method, a non-reversible circuit element and communica...
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JP2002368531 |
To provide an inexpensive surface mounting type antenna with high performance and to provide its production method. A radiation electrode, a grounding electrode and a power feeding electrode, etc., are arranged on a substrate chip consis...
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JP2002368509 |
To provide a method for producing a large number of high frequency devices with a high wiring aspect ratio while suppressing the running cost. The method is provided with a metallic mold casting process for casting a metallic mold having...
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