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JP2004239745A |
To solve the problem that angle of arrival can not be estimated with superior precision since a blind part exists in response of an antenna element even if the angle of arrival changes.This antenna for detecting angle of arrival is provi...
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JP3556618B2 |
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JP2004220141A |
To provide a method for precisely inspecting whether an IC inlet to be inspected is good in quality under the condition that many IC inlets are formed on an insulating film.The inspection of the IC inlet 1 formed on the insulating film 2...
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JP2004213217A |
To provide a reader/writer for a data carrier which is thin in thickness without being affected by surrounding metal and without being restricted in its installation place.This reader/writer 100 for identifying and controlling the data c...
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JP2004207506A |
To provide a radiowave absorber which is easily designed and demonstrates a high absorbing performance for the radiowave incident in the range of wide angle.The radiowave absorber comprises a reflection layer 1 and an absorption layer 2 ...
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JP3542429B2 |
To provide a radio wave absorbing structure body of a comparatively large ferrite tile of easy installation, and provide civil engineering construction part member having radio wave absorbing function capable of construction together wit...
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JP2004193531A |
To provide an electric wave reflection suppressor having a wide band matching property and its constitution method by introducing the concept of a high frequency integrated circuit to the constitution of an electric wave reflection suppr...
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JP2004179354A |
To develop an electromagnetic wave absorption panel that can prevent degrading of absorption performance in case when the incident angle of an electromagnetic wave becomes large, and to improve its sound absorption performance so as to u...
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JP2004516699A |
A radiation shield ( 36 ) includes a virtual magnetic wall (VMW), which is adapted to be placed between a radiating antenna ( 34 ) and an object ( 30 ) so as to reflect electromagnetic radiation emitted from the antenna in a given freque...
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JP2004515950A |
The present invention provides reduction of injury to the human body by effectively reducing short-distance electromagnetic waves without any influence on long-distance electromagnetic waves which act upon a telephone communication among...
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JP2004146801A |
To provide a porous magnet having porosity, a low dielectric constant, a low water absorption rate and high reliability, and also to provide a manufacturing method thereof, and an electric-wave absorber and a magnet lens therewith.The ma...
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JP3528427B2 |
To make it possible to take a sufficient measure for a noise found after necessary devices are mounted without taking some measures beforehand and eliminate an installation space for the devices for settling the noise problem by coating ...
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JP2004140560A |
To suppress unwanted radiation (radiation in the direction toward a scattering body), regardless of the position of an antenna and the attaching position of a shielding member for suppressing the influence of a peripheral body on the ant...
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JP2004129016A |
To provide a radio attenuator for antenna which can easily and effectively reduce a transmission/reception power of a radio transmitter/receiver.An electromagnetic wave absorber 21 having a property of absorbing an electromagnetic wave, ...
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JP2004127980A |
To provide a non-halogen flame-retardant electromagnetic wave absorber not requiring vulcanization, low in cost, high in electromagnetic wave absorption, light in weight and excellent in processability, excellent in mechanical strength, ...
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JP2004119894A |
To provide an electromagnetic-wave absorber and a manufacturing method thereof whereby an electromagnetic-wave absorbing performance is maintained over a long term, and a uniform electromagnetic-wave absorbing performance having no varia...
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JP2004117288A |
To provide an antenna characteristic measuring device for actualizing accurate measurement.A rotary stage device 130 for rotatably supporting a receiving antenna 500 to be measured has a first rotary table 131, a supporting rod 133 and a...
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JP2004077399A |
To solve the problem of milliwave radar which is used for the automatic driving of a vehicle or for preventing the collision of the vehicle that the radar detects unnecessary objects by receiving the reflected waves of the side lobe of a...
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JP2004506530A |
The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and usefu...
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JP3500596B2 |
To protect an electromagnetic interference suppressor or the like, comprising a composite magnetic body containing a soft magnetic powder and an organic binder by covering the suppressor with a protective cover made of identical kind of ...
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JP3500317B2 |
To prevent antenna characteristics of a ground wave mobile terminal from being fluctuated and also maintain excellent antenna sensitivity regardless the presence/absence of an adapter type satellite communication terminal in a ground rad...
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JP2004056643A |
To provide a high performance and compact antenna device by which a high antenna gain can be obtained, which is hard to be influenced by wind, etc., and can be suitably used by being mounted on a vehicle, etc.The antenna device is provid...
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JP2004039877A |
To provide a television wave absorber which can absorb television waves of VHF and UHF and be worked arbitrarily from a plate-like object having a large area to an object having a complex shape, and is lightweight and easy for constituti...
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JP2004040403A |
To provide an antenna device, in which the problem of performance degradation of direct waves is solved.The antenna device has a plurality of radiation fins 1 provided to a heat pipe 2, which conducts heat of a high frequency module 4 co...
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JP2004502978A |
An optical component for effecting frequency selective reflection in the gigahertz and terahertz frequency ranges and for effecting wave permeability includes at least one first layer ( 1, 3, 5 ) made of a first material (m 1 ). The firs...
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JP3488758B2 |
PURPOSE: To provide a pressure transmitter, having a high airtightness of an inner section housing an electric circuit against the outside, capable of being not influenced by an intense radio wave even when using it being exposed thereto...
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JP3482942B2 |
To provide an electric wave absorber showing high electric wave absorption performance and a method for applying an interior trimming material. The electric wave absorber 10 has at least a first layer 14 and a second layer 16 which conta...
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JP3475386B2 |
To obtain an electromagnetic interference suppressor with indicating functionability where unwanted electromagnetic waves are suppressed effectively by composing the suppressor of a soft magnetic powder and an organic binder, wherein a c...
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JP2003347787A |
To provide an electromagnetic wave absorbing composition of a high electromagnetic wave absorbing performance, heat conductivity, and a dielectric breakdown voltage. The magnetic powder coated with electrically insulating inorganic fine ...
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JP3470657B2 |
To obtain a sector beam antenna device having a scattering body which obtain desired wide sector beams. This device has parallel flat plates 1 composed of the combination of two parallelly arranged conductor flat plates 1a and 1b of whic...
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JP2003332785A |
To provide a radio wave propagation space, e.g. a microwave darkroom, having an inexpensive and simple structure as compared with prior art, and to provide a stable radio communication environment capable of preventing multiplex reflecti...
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JP3467990B2 |
To reduce cross polarization, due to the electrical coupling with improvement of the characteristic and to secure a coplanar constitution for both strip antenna and strip line for facilitating the production and the cost reduction of a p...
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JP3467637B2 |
To provide an electromagnetic shielding window, by which an existing glass window can be improved and executed into the electromagnetic shielding window simply at low a cost. An electromagnetic shielding film 7 is stuck onto the whole ex...
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JP2003324300A |
To provide a method for suppressing an unnecessary radio wave which performs a radio wave absorbing function balanced between a low incident angle and a high incident angle relative to the radio wave of circular polarization in a 5.8 GHz...
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JP3466129B2 |
To provide an electronic toll collection system preventing a multipath in a tollgate by devising the configuration and structure of the tollgate. In the electronic toll collection system for automatically collecting tolls by performing r...
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JP3463189B2 |
To provide an electromagnetic interference suppressor which can be fixed to an electric device, etc., without deteriorating its characteristic and its fixing method, and to provide a device and a part which use the electromagnetic interf...
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JP3459630B2 |
To provide a radio wave absorbing panel, into which foreign substance such as water, dust or exhaust gas or the like is less likely to penetrate into, and which is lightweight and thin and has sufficient radio wave absorbing performance....
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JP3458150B2 |
To provide a noise absorption core wherein magnetic efficiency is raised by lighter weight and improved degree of freeness. A base part 1a and sandwiching parts 1b and 1c extending in a specified direction from one end and the other end ...
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JP2003298281A |
To provide an electromagnetic wave attenuation control method for satisfactorily performing radio communication by appropriately controlling attenuation quantity of electromagnetic wave intensity.Radio LAN equipment 12A and 12B is arrang...
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JP3456512B2 |
To realize indoor radio communication with high quality by means of a simple antenna configuration by reducing multi-path fading. Let a height of a ceiling 4 in a room be H, a height from a floor 1 to an antenna 8 of a terminal station b...
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JP2003289220A |
To provide an electromagnetic wave absorbing partitioning wall set with no feeling of oppression or anxiety for a driver, without disturbing the field of view to the adjoining traffic lane.In a separation wall 10, a translucent electroma...
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JP2003287506A |
To provide a free-space electromagnetic wave measuring system that can measure the constants of the material of a specimen to electromagnetic waves with high accuracy and can be miniaturized advantageously, and to provide a method by whi...
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JP2003264425A |
To realize a television wave transmission steel tower with radio wave absorption plate, capable of efficiently absorbing radio waves by mounting the radio wave absorption plate.The radio wave absorption plate 1 having structure by lamina...
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JP3448012B2 |
To provide an electromagnetic-wave absorbing material and its manufacturing method wherein its electromagnetic-wave absorbing ability is large and its absorbing performance for absorbing an electromagnetic wave projected on its incidence...
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JP2003258542A |
To provide a circuit integration type molding with which a noise countermeasure component can be omitted or simplified, an electronic device can be small-sized furthermore, and the assembly performance can be enhanced, and to provide a m...
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JP2003258541A |
To provide a pseudo plant for environment protection for eliminating adverse effect of a transmission radio wave from an antenna and an electromagnetic wave produced from overhead transmission and distribution lines and an electronic sta...
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JP2003258543A |
To provide an electromagnetic shield film for reducing a transmissivity of an electromagnetic wave with a particular frequency.The electromagnetic shield film 1 is configured with a thin metallic or plastic film 2 having conductivity to ...
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JP2003258483A |
To provide an electromagnetic wave shielding transfer material which shields only an electromagnetic wave having a specific frequency, which can be transferred to a member having a rugged and curved surface or the like and which has exce...
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JP2003526928A |
Microstructured materials which can be tuned to a particular range of r.f. frequencies to display particular magnetic permeabilities have been proposed. A typical material is made of an array of capacitive elements e.g. spirals or rolls ...
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JP2003243920A |
To provide a radome capable of reducing or eliminating ground clutter and unnecessary echo from a low-lying object or the like.The radome comprises a transmission radome part through which a radio wave sent/received by an antenna is tran...
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