Document |
Document Title |
JP4953996B2 |
|
JP4951640B2 |
|
JP4949455B2 |
According to one embodiment, a periodic structure includes two types of LC resonance circuits or more. The phases of reflected waves by these two types of LC resonance circuits or more with regard to an incident wave includes a specific ...
|
JP2012090045A |
To provide a multichannel coaxial type rotary joint having a plurality of choke structures whose isolation characteristics have been improved without causing passage characteristics to degrade.In a multichannel coaxial type rotary joint ...
|
JP4922003B2 |
An antenna device is provided. The antenna device includes an antenna element including a first portion and a second portion formed almost parallel to each other, and a plane-shaped piece of magnetic material provided between the first p...
|
JP4917484B2 |
|
JP2012508339A |
Various components of a shrouded wind turbine are coated with a radar absorbent material. The resulting wind turbine has a reduced radar signature compared to conventional wind turbines.
|
JP4901473B2 |
A high-impedance substrate including a first layer made of insulating material, having a lower face and an upper face, the substrate including conductor patterns mechanically linked to the substrate. Some of the conductor patterns mechan...
|
JP4889180B2 |
|
JP2012039587A |
To provide a thin radio wave scattering body for imparting stealthiness to a radio wave in a wide frequency range or a thin radio wave scattering body having a radio wave absorber at low cost.A surface of a structure comprises a radio wa...
|
JP2012039234A |
To provide a receiver capable of ensuring high reception quality, capable of inhibiting a dynamic range of a radio signal concurrently incoming from a plurality of points in different directions, incoming from a plurality of directions.A...
|
JP4875533B2 |
|
JP2011258745A |
To suppress magnetic noise.In an electromagnetic wave leakage suppression structure, a tape 2 is composed of an adhesion layer 11 adhered to a housing 1, a magnetic material layer 12 provided on a surface of the adhesion layer 11, a cond...
|
JP4835653B2 |
|
JP4836899B2 |
|
JP2011250031A |
To provide a compact antenna device which can be used for short-range radio communication or mobile communication.At the top and bottom of a metal box 15 which is a housing of an antenna device, a lower antenna 12, a spiral antenna for t...
|
JP4833571B2 |
|
JP4824621B2 |
|
JP4825074B2 |
|
JP4808572B2 |
|
JP4801380B2 |
|
JP2011211420A |
To improve antenna efficiency while securing a broadband characteristic and thinning.A spiral antenna includes an antenna element 11, a cavity 13, and a radio wave absorber 14. The antenna element is formed into a spiral shape on a diele...
|
JP2011211309A |
To provide an antenna module and an electronic apparatus in each of which the variations in a resonance frequency of an antenna coil due to a metallic component placed in the surrounding are prevented.The antenna module 1 includes the an...
|
JP2011211517A |
To provide a film antenna that is excellent in antenna performance and durability.The film antenna is configured as follows. A radio-wave absorbing member has at least a dielectric layer and a conductive layer. A base material is formed ...
|
JP4796469B2 |
|
JP4795826B2 |
|
JP4790892B2 |
|
JP4793521B2 |
|
JP4784517B2 |
|
JP4784249B2 |
|
JP4782097B2 |
|
JP4761246B2 |
|
JP4761188B2 |
|
JP4757169B2 |
|
JP4752934B2 |
|
JP2011151047A |
To provide an electromagnetic wave absorber for shielding electromagnetic waves of a specific frequency reliably by a simple structure.Two or four triangular punched portions 14 having their individual apexes opposed to each other are fo...
|
JP4736517B2 |
|
JP2011142198A |
To improve absorption characteristics of a radiowave absorber for a radiowave from an oblique direction.The radiowave absorber includes a first film made of a conductor, a second conductor made of a resistor, and a plurality of conductiv...
|
JP4715643B2 |
|
JP4714841B2 |
|
JP4713823B2 |
An antenna unit (50) formed in the shape of a hollow box comprises a substrate forming the front side of the antenna unit, a microstrip antenna array (51) formed on the substrate, a ground plane forming the rear side of the antenna unit,...
|
JP4696241B2 |
|
JP4698528B2 |
To enable a thinned battery lid with an antenna being mounted on the battery lid in a mobile electronic device, and to enable a thinned device case as a result. In a mobile electronic device having a battery lid 8 attached to a battery s...
|
JP4680109B2 |
|
JP2011086652A |
To provide: a hollow radiowave absorber constituting a radiowave absorption wall capable of securing a return loss of about -20 dB in a wide frequency band substantially from 30 MHz to 3 GHz; a radiowave absorption wall using the hybrid ...
|
JP4677503B1 |
To easily realize a good shielding effect by adhering to an outer surface, an inner surface, etc. of a case of an electronic device by adopting a shielding material made of a flexible laminated body which can be adhered. Shielding materi...
|
JP2011082985A |
To provide an electromagnetic filter device that introduces, to an electronic device, a power transmission function using magnetic field coupling at a predetermined frequency without deteriorating transmission characteristics, while ensu...
|
JP4660542B2 |
A radio system for sensing the spatial configuration of a physical object comprising a transmitter (102) which sends a query message to a transponder (104) having at least one antenna (106). A radio frequency shield (108) is moveably int...
|
JP2011045036A |
To suppress the influence of multipath and to freely arrange a plurality of planar antennas on a substrate.The planar antenna 100 includes a substrate 109, an antenna pattern 103 installed at the center of one surface of the substrate 10...
|
JP2011041130A |
To solve the problems that, when a metal chip having shock resistance is embedded in a distal end of a radome, antenna radiation characteristics inside the radome may be deteriorated by effects of reflection in the metal chip, an antenna...
|