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Matches 951 - 1,000 out of 2,794

Document Document Title
JP4503903B2  
JP2010154012A
To provide an identification system for an RFID tag, capable of arranging and using the RFID tags at a narrower interval. The RFID tag identification system is provided with: a base; a helical antenna for which the spiral shaft of an ant...  
JP2010521828A
The dielectric loading multi-Fira helical antenna which has the clock frequency over 200 MHz, At 1 embodiment, it has an electrical-insulation-properties core which occupies the great portion of interior volume demarcated by the three-di...  
JP4489759B2  
JP4484888B2  
JP2010130100A
To provide a built-in multiband antenna apparatus for a portable terminal device.The multiband antenna apparatus 110 includes: a ground plate 30; and an antenna unit. The ground plate 30 includes a feed point. The antenna unit is dispose...  
JP4479519B2  
JP4477145B2  
JP4469011B2  
JP4467642B2  
JP4462398B2  
JP2010514241A
A radio communication receiver which includes an antenna array having at least two antennas to provide antenna diversity. The receiver is for receiving signals containing orthogonally coded data sub-streams derived from a source data str...  
JP2010514240A
Antenna composition contains two antennas which resonate with common clock frequency. The above-mentioned composition is provided with a circuit which provides a signal output which combined an output signal from each of an antenna and w...  
JP4458218B2  
JP2010087885A
To suppress upsizing and prevent reduction in radiation power using an inexpensive and low-permittivity substrate.An antenna 1 includes a substrate 10 and a conductor pattern 12 formed on the substrate 10, wherein the conductor pattern 1...  
JP2010511339A
A dielectric loading 4 線巻 helical antenna has four 1/4-volume helical elements arranged focusing on a coax. Each helical element is meta-ライズ (ed) on the outside cylindrical shape surface of a solid dielectric core, it has an el...  
JP4445265B2  
JP4446272B2  
JP2010068070A
To provide a design method of a dual band helical antenna for easily setting a primary resonance frequency and a tertiary resonance frequency to a desired frequency, and achieving dual band operations.The winding number of a helical cond...  
JP2010068461A
To obtain excellent reception sensitivity regardless of the posture of a telephone set by easily and reliably adjusting detection sensitivity while limiting a radiowave detection area to a narrow area such as the vicinity of an ATM.Signa...  
JP2010063095A
To provide a simpler assembly process for a dielectrically-loaded antenna.A dielectrically-loaded antenna has a structure comprising co-extensive helical conductors 10A-10D plated on a cylindrical side surface of a cylindrical ceramic co...  
JP2010056828A
To provide an antenna device which radiates omnidirectional circularly polarized waves in an antenna plane (horizontal plane).The antenna device (10) includes: a radiation element; a ground plate (14) which faces the radiation element; a...  
JP2010050895A
To provide a small circularly polarized wave antenna with excellent radiation characteristics, which serves as a circularly polarized wave antenna mounted on a potable terminal device.The antenna includes a square ground plate 2, a helic...  
JP2010034791A
To provide an electric field coupler that is miniaturized without reducing an electric characteristic and easily manufactured, a communication device, a communication system, and to provide a method of manufacturing the electric field co...  
JP4409789B2  
JP2010021618A
To provide an antenna which has a high degree of freedom for wiring in lines of a distribution circuit and can also be miniaturized.On a first substrate 2 located inside of a cylinder, a first antenna pattern 21 is arranged in a spiral p...  
JP2009303201A
To provide a collinear antenna capable of obtaining a radiation pattern suitable for communication in multiple frequencies.Each of stages from a first-stage sleeve element 10 to a fifth-stage sleeve element 14 stacked over five stages is...  
JP2009290408A
To provide a monopole antenna capable of easily adjusting a resonant frequency when an impedance characteristic is improved.A monopole antenna body 2 includes a coil 21 wound spirally so as to surround an axis Z, and a rising part 22 pro...  
JP2009543395A
Antenna arrangement used for a super-broadband network is provided with a plurality of effective unipolar children. Each unipolar child intersects perpendicularly mostly to a ground plain, in accordance with a communication axis, for 配...  
JP2009284228A
To provide a helical antenna which uses a supporting member having as less deterioration of antenna characteristic as possible though it is formed of an insulator material with high loss property.The helical antenna includes: a cylindric...  
JP2009280405A
To provide an inventory control method and system using an intelligent station to track items tagged using RFID tags and to prepare an inventory.Item information is collected from the RFID tags attached to inventory items by a method, a ...  
JP2009278591A
To provide a helical antenna which is improved in a cross-polarization ratio while achieving a low profile, can stand alone, and also is improved in strength and earthquake protection.An element 2 of the helical antenna 1 is formed into ...  
JP2009278505A
To provide an antenna capable of being brought into a mounting state where capacitive coupling to the ground of a wiring board is reduced, in relation to an antenna used for a wireless device or the like.An antenna element 21 is formed i...  
JP2009268099A
To provide an end-fed planar type spiral antenna which ensures less limitation in height and improves broadband characteristics and radiation efficiency.The present invention relates to an end-fed planar type spiral antenna for transmitt...  
JP4362677B2  
JP2009260505A
To perform miniaturization using a single inverse L-shaped antenna and to widen a communication band.The antenna includes an inverse L-shaped antenna element 2 arranged on a ground plate 1 and provided with a first antenna line part 4 ex...  
JP4359648B1
[Subject] While excelling in the characteristic, the suitable non-contact electric supply type normal mode helical antenna for the ubiquitous communication use which was rich in flexibility is offered. [Solution means] A metal plate and ...  
JP2009537105A
An antenna system which operates on frequency higher than 200 MHz, It has an antenna, a transmission line, and a receiving stage, and is a transmission line, An antenna is electrically connected to an input of a receiving stage, and it i...  
JP2009246627A
To provide a loop antenna device suitable for a use requiring specified directivity.The loop antenna device 100 has first-fifth helical conductor sections 10-50 formed on an insulating substrate 2 in a multilayer structure. The first and...  
JP2009246746A
To provide a spiral antenna which avoids a gain decrease in a high-frequency range due to cavity resonance even when used in a low-frequency range.The spiral antenna includes a case 3 functioning as a ground conductor, a cavity 4 formed ...  
JP2009246753A
To provide a helical antenna can be reduced in antenna size even when an inverse-F structure is provided.A helical conductor 3 is constituted of a helical portion 31 wound spirally and a connecting part 32 for connecting one end of the h...  
JP4340905B2  
JP2009225262A
To provide a broadband helical antenna having low VSWR over a wide range.A base block 2 in which a first base block portion 21 whose width is W1 and a second base block portion 22 whose width is W2 different from W1 are connected so that...  
JP2009218754A
To provide an antenna apparatus capable of coping with dual-mode transmission.In the fish bone helical antenna apparatus for a multiple-frequency band equipped with a bottom board, a helical chip, and a reverse L-shaped element, the freq...  
JP2009218681A
To provide the radio wave receiver for reducing the size of an antenna structure and a device equipped with the antenna structure and improving the reception sensitivity, by installing the antenna structure at a position where radio wave...  
JP2009218753A
To bias a resonance frequency to a lower frequency side by expanding a line length without changing the number of turns of a spiral conductor.In a fishbone helical antenna apparatus equipped with a ground plate 1 and a helical chip 2, el...  
JP2009218835A
To provide a helical antenna capable of easily performing impedance matching inexpensively.A first helical conductor 3 is provided while being spirally wound around a conductor plate to which one end thereof is connected. A second helica...  
JP4327666B2  
JP2009201002A
To increase a printing accuracy for a spiral radiation conductor formed on the surface of a base and also to reduce an effective dielectric constant of the base.An antenna device 10 includes a base 11 made of a dielectric material having...  
JP2009201003A
To increase an accuracy of a radiation conductor by reducing the number of screen printing times.An antenna device 10 comprises a base 11 made of a dielectric material having a nearly rectangular parallelepiped shape, a spiral radiation ...  

Matches 951 - 1,000 out of 2,794