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Matches 751 - 800 out of 2,790

Document Document Title
JP6065807B2  
JP2017017542A
To provide an antenna device capable of radiating circular polarization of good axial ratio up to a high frequency band, while obtaining the radiation directivity having symmetry.A spiral line 2 having a spiral pattern shape symmetric at...  
JP2016181809A
To provide a radio terminal that can be miniaturized and reduced in cost while securing antenna performance.A radio terminal includes a first antenna 2 comprising a first helical element 21 and a whip element 22, and a second antenna 3 i...  
JP2016178489A
To provide a dual-polarized helical antenna capable of achieving a practical antenna for base station, by ensuring the characteristics as a good dual-polarized antenna.A dual-polarized helical antenna where helical elements 20, 30 are di...  
JP2016529771A
Antenna array contains a plurality of antenna elements. An antenna element is provided with the following. A layer of dielectric material, It is inserted in the top layer of dielectric material, and, as a result, the surface of an antenn...  
JP5988877B2  
JP5983760B2  
JP5965917B2  
JP2016111574A
To provide a small planar antenna device that has shorten an antenna element by a coil-shaped portion.A first antenna device 11 is planar, and includes a ground portion 31, a swirl portion 32, and a radiation portion 33 as antenna compon...  
JP5934663B2  
JP5922390B2  
JP5917119B2  
JP2016066915A
To realize a solid coil shaped antenna having high performance, high reliability, and an inexpensive price.An antenna 10 is configured by coating a conductor 12 to the substantially entire surface of a surface of a core material 11 havin...  
JP2016054454A
To provide a meta-helical antenna capable of acquiring desired gain characteristics at a left-handed system operation and a right-handed system operation respectively with a single antenna without changing a basic constitution such as an...  
JP2016040720A
To solve problems for example, in a conventional RFID system, due to interference of an electric wave, tag reading is not stabilized, tag information of an RF tag cannot be read out, or, when a person or article exists between a reader a...  
JP5793052B2  
JP5792296B2  
JP2015173143A
To absorb or reflect electromagnetic waves coming from the outside with the use of plasma.An electromagnetic wave shielding device comprises: an antenna 1 which radiates radio waves; a coil 2 which is arranged so that its axial direction...  
JP5764745B2  
JP2015146625A
To provide a collinear antenna that allows a high degree of freedom in design.The collinear antenna includes a plurality of outer conductors 2 cylindrically formed and longitudinally arranged, and a plurality of inner conductors 3 separa...  
JP5757960B2  
JP2015142340A
To provide an antenna unit preventing damage when fallen to the ground, and capable of coping with a wide frequency band by only one antenna.The antenna unit, to be mounted inside or outside the housing of a communication device, include...  
JP5756114B2  
JP2015130599A
To provide a small-sized antenna and a radiation disturbance radio wave measurement system.A small-sized antenna comprises: a board formed from dielectric material; a first linkage body formed on one face of the board; a second linkage b...  
JP2015115287A
To realize a lighting device which does not spoil appearance of lighting equipment, secures lighting performance of the lighting equipment and executes highly reliable radio communication.In a lighting device 100, a helical antenna is co...  
JP5726440B2  
JP2015082789A
To solve the following problem: temperatures of an antenna exposed to space become -150°C on the low temperature side, and +90°C on the high temperature side due to thermal environment peculiar to space, and if a helical wire is fixed ...  
JP2015082707A
To provide a log-periodic antenna device equipped with a reflection plate which is capable of directing a radiation direction of a main beam in each frequency band in the same direction.A log-periodic antenna 21 and a reflection plate 22...  
JP2015076759A
To provide a logarithmic period type antenna capable of sharpening directivity without changing the length of the antenna while maintaining good VSWR characteristics.A first logarithmic period antenna element part 21a and a second logari...  
JP2015511096A
The present invention is provided with a plurality of radiation Strand spirally twisted around rotation shape and the rotation shape concerned, and each radiation Strand is related with a helical antenna specified by repetition of a frac...  
JP5691035B2  
JP2015057881A
To provide a system and method for performing communications in an optimal manner on the basis of use of compact and/or simple, yet effective means.The present invention provides a method and system for communication with assemblies comp...  
JP2015041807A
To achieve an antenna having excellent reflection characteristics and radiation characteristics.An antenna 1 includes: a dielectric substrate 11; an antenna conductor 12; a ground conductor 13; a waveguide 14; a shielding body 15; and a ...  
JP5676622B2  
JP5676621B2  
JP5672128B2  
JP5640817B2  
JP2014531826A
An antenna relay system for making easy a moving terminal on rapid transit railway vehicles, and wireless communications between fixed base stations, reducing the ドップラー shift effects substantially, It has an antenna carried in ...  
JP5586755B1
[Subject] An antenna which has the outstanding reflective characteristic and a radiation property is realized. [Means for Solution] While width forms cut 15a of an inverse tapered shape form which becomes large in dielectric substrate 11...  
JP5588182B2  
JP2014155158A
To provide an antenna and a method of manufacture thereof which facilitate miniaturization and implement appropriate communication.An antenna 1 includes a laminated body 1A configured to transmit/receive a radio wave when a current flows...  
JP2014120831A
To provide a helical antenna 1 which can achieve compaction, wideband, and stabilization of impedance.A helical antenna 1 is ground type and operates in composite mode where series resonance mode and parallel resonance mode occur simulta...  
JP5523197B2  
JP2014107601A
To downsize an antenna element and to easily and stably mount the antenna element on a substrate.An antenna 12 which is a spiral coil antenna and a linear antenna 13 are accommodated in a cylindrical resin package 11. A body part 13A of ...  
JP5496941B2  
JP2014093623A
To provide an antenna which can be made compact easily even if there are a plurality of spiral antenna elements, and to provide an antenna device including the same.An antenna includes a rod-like support (core rod 45), a first spiral ant...  
JP2014086931A
To provide a helical antenna which improves receiving sensitivity.In a helical antenna 10, a rod 12 is inserted inside of a coil ring of a spirally wound antenna wire 11. The rod 12 is inserted inside of the coil ring of the antenna wire...  
JP5487154B2  
JP2014078772A
To provide a circularly polarized antenna device capable of performing axial ratio adjustment without exerting influence on a result of antenna impedance adjustment.A circularly polarized antenna device 100 includes a tip open type loop ...  
JP5479990B2  

Matches 751 - 800 out of 2,790