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JP3814183B2 |
To obtain an electromagnetic wave absorbing slope that can produce an electromagnetic wave reflection prevention function. In an electromagnetic wave absorbing and heat generating slope 10, a three-dimensional net 12 in a predetermined t...
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JP3812977B2 |
To provide a thin inhibitor for electromagnetic interference which can effectively inhibit electromagnetic interference in the microwave band. As the material of an inhibitor for electromagnetic interference, powder 2 of a semi-hard magn...
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JP3809474B2 |
A radio telephone, preferably intended for cellular telecommunication, has an apparatus housing (20) and at least one antenna (21), which is mounted to or in connection with the apparatus housing for performing the wireless communication...
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JP2006210703A |
To provide a device for reducing a disturbance electromagnetic wave wherein reduction effect of jamming electromagnetic wave can be obtained in a wide range.The device is constituted of a conductive plate 1 constituted of a conductive ma...
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JP2006192875A |
To provide an electric wave absorber which can be manufactured without positive addition of a carbon source and to provide its manufacturing method.The electric wave absorber is obtained by laminating a dielectric layer made of a ceramic...
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JP2006184130A |
To prevent multiple reflections from occurring, when using an in-car radar device which has the need to detect an object in a short-distance area ranging from several tens of centimeters to several tens of meters, wherein the refected wa...
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JP2006186725A |
To provide a transparent electromagnetic wave absorbing board with respect to electromagnetic wave within the frequency range of 1 to 10 GHz, which can be used for a partition for a room or road, etc., or for the window of a building, et...
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JP2006179901A |
To provide an electromagnetic wave absorbing sheet having excellent permeability at high frequencies.An electromagnetic wave absorbing sheet 1 comprises a soft magnetic layer 10 having an insulating film on its surface and formed so as t...
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JP2006174230A |
To provide portable electronic equipment in which electromagnetic waves for transmitting and receiving information have a less effect on a human body.There is provided the portable electronic equipment for transmitting and receiving info...
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JP2006156543A |
To provide a method for manufacturing nano complex powder for efficiently absorbing electromagnetic waves at a GHz band in which a utilization range tends to expand following the development of communication equipment by a magnetic mediu...
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JP2006157705A |
To provide an electromagnetic wave absorbing member which can be mounted simply to a cellular phone set and which will not hinder the operability of the cellular phone set, even after being mounted.The electromagnetic wave absorbing memb...
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JP3786497B2 |
To arbitrarily set the directivity of a radio wave in accordance with a purpose by providing a non-conductive radio radiation window becoming a lens for an area facing the antenna element of an air-tight sealing means. The antenna elemen...
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JP3783728B1 |
To prevent the occurrence of a measurement error by suppressing a reflection phenomenon of an electromagnetic wave. A radio wave absorber 110 covers a pipe portion 42 and a box portion 43 of a probe main body 40. The radio wave absorber ...
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JP2006140352A |
To provide an electromagnetic wave absorber capable of absorbing the electromagnetic waves of a more extensive wavelength, having little reflection of incident electromagnetic waves and low dependability on the wavelength of electromagne...
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JP2006135031A |
To provide a transparent electromagnetic wave absorbing plate for the electromagnetic waves in the frequency range of 1-10 GHz used for portable telephones, wireless LANs, ETCs, etc.The electromagnetic wave absorbing plate is composed of...
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JP2006128312A |
To provide a thin, large and inexpensive electromagnetic wave absorber that is effective at an arbitrary incident angle.The electromagnetic wave absorber comprises a reflector layer 10 which is the aggregation of conductive materials, a ...
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JP3772577B2 |
To widen the band of the microstrip spiral antenna and to prevent its characteristics from degrading by providing a radio wave absorber at the opening of a cavity bottom part that a microstrip tapered balun penetrates. The radio wave abs...
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JP3772187B2 |
To provide a reliable, thin and lightweight electromagnetic wave absorber exhibiting improved absorbing performance capable of absorbing electromagnetic waves over an extremely wide range. A porous substrate 3 has a number of through-hol...
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JP2006115330A |
To stably read information even when a plurality of readers are adjacently arranged, when an RF-ID is introduced and a unique ID is managed.An antenna installation tool 40 has a casing 43 for housing a flat antenna 35 having a radio wave...
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JP2006097304A |
To provide an excellent radio wave absorbing panel which exerts excellent performance of absorbing radio waves from TV radio waves to radio waves for communication systems, is free from degradation of radio wave absorbency, lightweight, ...
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JP3764885B2 |
To provide a mobile type positioning system receiver which enhances an S/N ratio of a radio wave from a positioning system satellite, and keeps high positioning operation performance by a positioning system, in a positioning system recei...
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JP3764358B2 |
To provide a method of evaluating an electromagnetic wave transmission structure which enables the analysis of the electromagnetic condition in a scale of the body of an aircraft, taking electromagnetic wave characteristics of a heteroge...
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JP2006081041A |
To provide the joining structure of a radio wave reflector in which the number of parts is small, assembling workability is satisfactory, rigidity against wind pressure and anti-earthquake performance are excellent, side lobe suppression...
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JP2006080414A |
To obtain a radio wave absorber having improved radio wave absorption characteristics at a 30 MHz to 50 GHz band.The radio wave absorber is formed by mixing a magnetic body powder 4, a mixture mainly composed of conductive fiber-like pow...
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JP3756791B2 |
To easily and adequately realize a circular polarization radio reflective attenuator for suppressing the reflection of circular polarization radio waves. The method of designing a circular polarization radio reflective attenuator (radio ...
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JP2006054753A |
To provide a cellular phone electronic wave removing apparatus capable of minimizing electronic waves generated from a cellular phone.When a cellular phone is provided with an external antenna, the external antenna is covered with a U-sh...
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JP2006049354A |
To solve the matter of a conventional electromagnetic wave absorber that production is serious because different linear antenna elements must be formed on an insulating sheet, i.e. a different antenna pattern must be formed or an insulat...
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JP2006041051A |
To provide a small-sized radio wave absorber having superior radio wave absorbing function in a higher frequency range, while maintaining radio wave absorption characteristics in a low frequency range, and to provide a composite radio wa...
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JP3744296B2 |
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JP2006032929A |
To provide an electromagnetic interference inhibitor and a method of reducing electromagnetic interference with the beneficial effect of reducing electromagnetic interference over a wide frequency band.An electromagnetic interference inh...
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JP3736668B2 |
To efficiency mass-produce a radio wave absorber with excellent waterproofness only by simply fixing radio wave absorbing sticks to a frame body by continuously producing the radio wave absorbing stick through drawing molding. A glass fi...
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JP2006005765A |
To provide a means capable of avoiding the problem caising when a radio wave obstacle exists in a straight line path for transmission and reception of radio wave signals and suppressing or preventing the occurrence of interference.This r...
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JP2005538629A |
This invention relates to periodic electromagnetic structures ( 20 ) for use over a relatively large range of frequencies. In particular, this invention relates to microwave applications, such as antennas and low reflectivity structures....
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JP3722391B2 |
To obtain a composite magnetic body and an electromagnetic interference suppresser effective for suppressing electromagnetic interference in high-frequency electronic apparatuses such as movable communication apparatuses. A composite mag...
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JP3720581B2 |
To obtain the sensitivity of a horizontally polarized wave component of a circularly polarized wave at a low elevation angel by arranging plural planar radiating elements under the ground conductor plate of a microstrip planar antenna (M...
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JP3716940B2 |
PURPOSE: To obtain a measuring apparatus for an electromagnetic wave absorption characteristic which can be constructed to be small in size. CONSTITUTION: A measuring apparatus for an electromagnetic wave absorption characteristic design...
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JP2005317825A |
To provide an electromagnetic wave absorber having an excellent electromagnetic wave absorbing characteristic.The electromagnetic wave absorber comprises a boron carbide powder having an electrical conductivity of not less than 5×10-6 (...
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JP2005311330A |
To provide a radio wave absorber good in weather resistance, bending workability, productivity, etc.The transparent radio wave absorber comprises a transparent dielectric layer 1 between a transparent resistance film 3 containing very th...
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JP3712256B2 |
To provide a panel for radio wave absorption which can effectively exhibit absorbing performance of radio waves both in a VHF band and in a UHF band which a ferrite tile has. In the panel for radio wave absorption which is to be fixed to...
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JP2005286195A |
To provide an extrudable crosslinked grease-like electromagnetic wave absorber that is excellent in electromagnetic wave absorbability, thermal conductivity, and flame retardant, is reduced in temperature dependency, and can be applied t...
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JP2005259776A |
To provide a transmission type double-sided radio wave absorbing device that passes and absorbs radio waves from both directions.The transmission type double-sided radio wave absorbing device is constituted of a left radio wave absorber ...
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JP2005251918A |
To provide a compact and lightweight electromagnetic wave noise suppressor which facilitates an incorporated application into an electronic apparatus or an electronic part, and has a good electromagnetic wave noise suppression performanc...
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JP2005249659A |
To reduce leak-in and turn-in of transmission electric power from a transmission antenna into a reception antenna.A sheetlike electromagnetic wave absorbing body 8 with one face coated with a metal layer 7 is provided to partition an are...
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JP3695591B2 |
To reduce the influence of electromagnetic waves to human body and increase antenna efficiency while maintaining lightweight and compactness of a portable telephone. A dielectric sheet 15 is installed in the chassis internal wall of a po...
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JP2005244043A |
To provide a radio wave absorber having reflection attenuating capability for preventing any communication failure due to the reflection of an electromagnetic wave or the like, which can be made small in thickness and light in weight.Thi...
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JP2005526437A |
It relates to a directional antenna that is mechanically scanned, particularly a scanning beam antenna. The antenna consists of a dielectric lens and a supply for transmitting electromagnetic energy to a rotatable coupling on the reflect...
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JP2005231931A |
To provide a cement type radio wave absorber showing an absorption property stable in a high-frequency band of 1 GHz or higher, having workability with fluidity, and the like, and a strength and a radio wave absorption property together,...
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JP2005225242A |
To develop a vehicle capable of securing proper communication condition in a state that a communication device is installed in the vicinity of a part, a device, or the like having influence on a communication wave.In the vehicle 10, a st...
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JP2005212745A |
To provide a molded product for use in a radar device beam passage with less electric wave permeation loss, enhancing hardness and wear-resistance property and exhibiting brilliant color.The molded product for use in the radar device bea...
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JP2005191982A |
To more easily produce (mass-produce) an antenna which collects radiowaves to a focal part or radiates the radiowaves in predetermined directions, even when wavelength of the radiowaves is short.A hologram 10 (such as alternating arrange...
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