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JP3900349B2 |
To provide an antenna system that can be downsized by decreasing the number of circularly polarized wave antennas with respect to a plurality of frequency bands and suppress noise or the like by decreasing the number of coaxial cables an...
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JP2007081824A |
To miniaturize a device, and to install the device even in a small space.An antenna device has a first antenna element 21 operated in a basic mode and an antenna element 22 having an annular pattern structure surrounding the first antenn...
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JP2007074667A |
To provide a sliding type mobile radio terminal capable of reducing a polarization loss during a speech without requiring any antenna element.A sliding type mobile phone according to the present invention comprises: a KEY substrate 10 mo...
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JP3892483B2 |
A device that communicatively couples a number of transmitters and receivers to a number of antennas. The device includes transmit ports each of which may be connected to a respective transmitter, receive ports each of which may be conne...
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JP3892566B2 |
To provide a miniaturized antenna to satisfactorily receive radio waves coming from noticeably different directions by forming a reflecting mirror for reflecting the radio waves from a plurality of static satellites at a part of an oval ...
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JP3889318B2 |
To improve the performance of even a multibeam antenna which has a large angle of beam deflection by making an F/D ratio not so large. The curved surface of a reflecting mirror which constitutes an antenna with at least one primary radia...
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JP2007502583A |
A multi-beam antenna comprises at least one curved surface, at least one dielectric substrate, and a plurality of end-fire antenna feed elements on the dielectric substrate. The at least one curved surface may be either reflective, refra...
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JP2007502415A |
A millimeter wave imaging system that includes at least one millimeter wave frequency scanning antenna for collecting frequency dependent beams of millimeter wave radiation from a narrow one-dimensional field of view. The collected radia...
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JP2007020091A |
To provide a converter for receiving a plurality of satellites being capable of receiving even a signal from another satellite having a different receiving polarized-wave angle when mutual spaces among the satellites are reduced comparat...
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JP2007501567A |
The present invention provides in one embodiment channel allocation and polarization techniques for reducing cross sector communications interference in a multiple access wireless communications environment. In one embodiment, channel al...
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JP2007501566A |
A multiple access wireless communications architecture provides selective, simultaneous communications with wireless devices located in different sections of a spatial area around a communications apparatus referred to as "sectors". In o...
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JP2007013958A |
To provide an antenna system (100) which operates in a plurality of frequency bands.The antenna system (100) is an internal antenna with broadband characteristics which provides connections in the plurality of frequency bands. The antenn...
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JP3870220B2 |
To supply power without using any distributor and to facilitate the setting of bidirectivity by providing a radiation element and plural waveguides for a prescribed length at the prescribed positions of a ground plate. A radiation elemen...
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JP3867713B2 |
To provide a multibeam lens antenna capable of communicating independently with satellites placed at a small elongation. The electric wave lens antenna device comprises a combination of: antenna elements 3 that have dielectrics 6 mounted...
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JP3865573B2 |
To provide a dielectric leakage wave antenna capable of enhancing its efficiency with a simple structure. Electromagnetic waves are leaked by providing metal strips 24 as loading bodies on the upper surface of a second dielectric substra...
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JP2006332840A |
To provide an array antenna system capable of reducing the side lobe level of a Δ beam.The array antenna system includes: a plurality of antenna elements 31 arranged to form an antenna aperture; a plurality of transmission/reception mod...
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JP3849881B2 |
A transceiver for improving the spectral efficiency and the capacity of cellular communication systems is disclosed. The transceiver uses an antenna array for communicating in a cellular communication system with a plurality of mobile st...
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JP2006524330A |
An apparatus and associated method are disclosed which form a multiple beam forming network using time division multiplexing. Instead of having several parallel sets of beam forming network hardware running at a given sampling clock rate...
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JP3829040B2 |
To provide a primary radiator for two-satellite reception integrated with a pair of horns that can obtain satisfactory reception characteristic, without having to increase the maximum diameter of a surface having the openings of the horn...
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JP2006262055A |
To provide an antenna module capable of suppressing reduction of a communication range while solving a communication failure when a reader and a writer come close to each other.This antenna module 11 is provided with a first tuning coil ...
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JP3816162B2 |
To adaptively control the width and direction of each sector beam and to equalize the number of communication terminals which are stored in each sector by detecting the information content to be transmitted via plural radiant elements, f...
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JP3809160B2 |
To provide a wall embedded antenna system for indoor radio communication. The wall embedded antenna system is provided with a first AP antenna a part of which is embedded in at least one surface of any one selected wall indoors, an AP (R...
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JP3805319B2 |
To provide an input device, equipped with a radio antenna that can achieve cost reduction, miniaturization and high-efficiency in transmission and reception characteristics, and to provide a display arrangement mounting the same. The inp...
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JP2006197646A |
To provide an input device provided with an antenna capable realizing cost reduction, miniaturization and high efficiency of transmission/reception characteristic, and to provide a display device mounted with this input device.The input ...
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JP3798549B2 |
To perform transmission beam forming when incoming signals are present and to stop the transmission beam forming, when the incoming signals are not present. In a CDMA radio base station 11, plural incoming beams are formed electrically b...
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JP2006517073A |
A phased array antenna ( 400 ) comprises a first array element ( 402 ) and second array element ( 404 ) and a dielectric separator ( 408 ). Each of the first and second array elements ( 402,404 ) is a detection element and or an emitter ...
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JP2006145461A |
To restrain an influence onto a GPS signal caused by a disturbance wave to the minimum.This GPS receiver is provided with a GPS antenna for receiving a signal of right-handed polarized wave including the GPS signal, a left-handed polariz...
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JP3781074B2 |
To provide a antenna device simple in device configuration, excellent in workability at the time of installation and capable of receiving radio waves from plural satellites with excellent sensitivity while realizing miniaturization. In o...
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JP3768714B2 |
To increasing form a beam newly even when the number of satellites increases by making the lateral size of an array antenna of lane antennas along a stationary track wide enough to actualize directivity by which relative gains of a side ...
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JP2006512578A |
For an angle-resolving antenna system, only two radar sensors are provided including separate transmitting and receiving antennas. The receiving antennas of the two radar sensors are switchable with reference to their main beam direction...
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JP2006510314A |
The present invention relates to a method and apparatus for pointing the beams ( 63-67 ) of a wind profiler comprising a stationary antenna matrix ( 61 ) with several individual antenna elements ( 62 ). According to the method an input s...
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JP3756817B2 |
To provide a transmitting/receiving device which produces a zero point in an added beam pattern and a subtracted beam pattern of a receiving array antenna in order to reduce interference of radio waves which are emitted from a transmitti...
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JP3749876B2 |
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JP2006506931A |
A transmit and receiving system including a first array including at least one antenna element disposed to provide a transmit antenna. The system further includes a second array having a second different plurality of antenna elements dis...
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JP2006041562A |
To receive a desired signal with high quality while reducing the computation complexity without providing an interference canceller to each channel corresponding to each communication terminal even in the case where an array antenna and ...
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JP2006503263A |
An efficient digital wideband waveform generation and signal processing system for multi-beam electronically scanned antenna array (ESA) radar systems. The digital waveform generator (50) first produces a series of waveform phase angles ...
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JP3737700B2 |
To provide a multi-beam antenna system with a simplified configuration so as to realize stable communication having high reliability and promote diversified operations. An antenna unit 12 where 1st-3rd antennas 121, 122, 123 are placed s...
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JP3734975B2 |
To radiate dual beams with sufficient gain having stable directivity when a dual beam antenna is mounted on an antenna installing part in a tunnel, etc. Mounting fixture 6 to mount a dual beam antenna 9 on the antenna installing part is ...
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JP3731354B2 |
To easily widen an angle measurement range in the case of forming a plurality of beams for detecting an object such as a mono-pulse radar by deflecting each direction of the beams at the same time without increasing the size of the syste...
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JP3730052B2 |
To obtain a high antenna gain for a wide service area with one antenna and to enable a communication of high reliability by setting the frequency of a transmit radio wave to values, which are different by sectors according to the directi...
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JP2005537728A |
A directive antenna having plural antenna elements is arranged in a parasitic antenna array. Frequency selective components are connected to an active antenna element. Weighting structures are connected to passive antenna elements positi...
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JP3722687B2 |
To commonly use the components of a feed horn which are used together with reflecting mirrors having different diameters as much as possible. In the feed horn, horn sections 16a and 16b are detachably attached to a plurality of waveguide...
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JP2005535255A |
An antenna system for providing network access services to wireless users generates at least a first and a second antenna beam, where the second antenna beam is movable with respect to the first. Additional antenna beams may also be gene...
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JP2005534231A |
A multi-beam antenna comprises an electromagnetic lens, at least one first antenna feed element, at least one second antenna feed element, and a selective element located between first and second portions of the electromagnetic lens with...
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JP2005534217A |
The invention relates to a telecommunications radio system for mobile communication services. More specifically, the invention relates to covering large sectorized areas for mobile communication services.
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JP3709639B2 |
To provide a signal transmission device/method for multiplexing the band width of information with the same frequency without enlarging the band width, improving frequency efficiency and realizing a mass radio communication system. This ...
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JP2005295188A |
To reduce the size and the thickness of a multi-beam antenna which can switch directivity in a plurality of directions and further which can obtain a high F/B ratio.The multi-beam antenna includes a non-power supply patch antenna element...
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JP2005530395A |
Methods of scheduling optimization of communications used with Wireless Local Area Network (WLAN) equipment that employs steerable directional antennas. The methods may use and are compatible with Media Access Control (MAC) layers of IEE...
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JP3699408B2 |
To provide a simple multi-beam antenna that can be small-sized by using inter-beam elements in common and eliminate the need for switching a feeding point termination condition because a low coupling amount between feeding elements can b...
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JP3701578B2 |
To provide a horizontal and vertical sharing antenna device, having equal horizontal in-plane directivity, in both the horizontal polarization and the vertical polarization. This antenna is constituted by (1) two pairs of horizontally po...
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