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JP5428901B2 |
Provided is a multi-beam antenna device capable of achieving two independent multi-beam characteristics using a single antemia unit, and enhanced gain. The multi-beam antenna device comprises a first antenna section, a second antenna sec...
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JP2014016233A |
To provide a flying object having an electric wave seeker substantially improved in reception sensitivity of the electric wave.According to a flying object in accordance with one embodiment, an antenna layer transmits an electric wave to...
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JP5354830B2 |
A microwave radiating element including first and second means for conveying electromagnetic waves in respective first and second frequency bands, wherein the first and second means are coaxial.
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JP5355643B2 |
A microwave radiating element including first and second means for conveying electromagnetic waves in respective first and second frequency bands, wherein the first and second means are coaxial.
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JP5290403B2 |
An antenna system comprising a first antenna corresponding to a horn antenna, a second antenna corresponding to a horn antenna disposed such that the E-plane of the second antenna is co-planar with the E-plane of the first antenna an suc...
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JP5247815B2 |
Two types of array antennas having different down tilt angles are used separately between the outside and inside of the cell in consideration of the transmission mode. A base station apparatus is a base station apparatus that performs wi...
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JP5227820B2 |
Provided is a radar antenna integrally formed on a dielectric radiation board to prevent occurrence of surface wave and capable of wide angle measurement. The radar antenna (400) has eight antenna units (410) formed on a radiation board ...
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JP5228979B2 |
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JP5220966B2 |
Local adapted shapes on a reflector (1) are designed to give the reflector multiple focal points (10a,10b,110a,110b) separated by spaces. As a result, electromagnetic bundles (5a,5b,50a,50b) of rays emerging from rays (4a,4b,40a,40b) sep...
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JP5213876B2 |
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JP2013521737A |
A system for accurate positioning using radio frequency tags and corresponding method thereof. The system comprises at least two antennas in phased array combination and an RF tag position determination unit coupled with the at least two...
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JP5195126B2 |
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JP2013005046A |
To provide an antenna device that can secure communication establishment with a simple configuration.A first inductor 25 is formed by connecting the starting point of one antenna line 17a with a first terminal 24a, then winding the anten...
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JP5063851B2 |
A near object detection (NOD) system includes a plurality of sensors, each of the sensors for providing detection coverage in a predetermined coverage zone and each of the sensors including a transmit antenna for transmitting a first RF ...
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JP2012207992A |
To provide a radar device and an array antenna, of which the phase control is easy even though the phase to be given to an antenna element arranged on a same coordinate at an original point and around the original point is complicated.Th...
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JP5044040B2 |
An antenna system for tower-top installation includes an antenna array of M x N antenna elements, a corporate feed for operatively interconnecting said antenna elements, a backhaul channel for communicating with ground-based equipment, a...
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JP5007005B2 |
The invention relates to a receive (or send) antenna for a geosynchronous satellite of a telecommunications system intended to cover a territory divided into areas, the beam intended for each area being defined by a plurality of radiatin...
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JP4998528B2 |
To provide an RFID reader/writer device identifying an RFID tag present inside a certain specific range narrower than a beam width of an antenna, and not identifying an RFID tag present outside the specific range or an RFID tag present i...
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JP4988094B2 |
An antenna system for tower-top installation includes an antenna array of M x N antenna elements, a corporate feed for operatively interconnecting said antenna elements, a backhaul channel for communicating with ground-based equipment, a...
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JP4974262B2 |
The present invention relates to a receiving system for a multi-sensor antenna and comprising: at least one set of channel filters (310j, 710k, 1 . . . N) filtering the signals Xi(t,f) received by the different antenna sensors, where the...
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JP4957980B2 |
The present invention relates to an antenna apparatus and a communication apparatus able to provide an antenna apparatus having wide band characteristics or diversity characteristics. A first antenna element 11, a second antenna element ...
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JP4954099B2 |
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JP4943583B2 |
Systems and methods for providing antenna beams having reduced grating and side lobes when steered off of the antenna broadside are disclosed. According to the present invention an arrangement of antenna elements suitable for use in gene...
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JP4937164B2 |
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JP4935388B2 |
To provide a radar antenna device in which a primary radiator is fixed and a reflection mirror rotates around the outer periphery of the primary radiator, and solve the problem that a focal shift becomes a directional error that is compo...
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JP2012093321A |
To simplify a constitution, alleviate constraint of packaging significantly, and enable weight saving and downsizing compared with conventional examples, with regard to a monopulse feeder circuit enabling the arrival direction and the li...
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JP4928052B2 |
An antenna element is described which has at least one radiator layer disposed over a feed circuit layer. The radiator has a first ground plane disposed thereon and the feed circuit layer has a second ground plane disposed thereon. A con...
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JP4917610B2 |
The present invention relates to a transmission/reception antenna with diversity of radiation comprising on a substrate at least a first and a second radiating elements connected by a network of feeder lines to a transmission/reception c...
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JP2012050074A |
To enable a reflector in an antenna device which is comprised of a fusion parabolic surface to be simply and speedily inspected for strain by following the same procedure as for a single focus reflector.An antenna device includes one ref...
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JP4888471B2 |
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JP4877697B2 |
There are disposed four antenna elements which are arranged circumferentially at regular intervals, and four 90-degree hybrids each having four terminals, two 90-degree hybrids which are arranged in parallel are connected in two stages, ...
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JP4815574B2 |
Disclosed herein is an antenna beam control apparatus for steering a horizontal azimuth angle or horizontal beam width of base transceiver station antennas. The apparatus comprises at least one antenna reflection plate, rotation means fo...
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JP4813727B2 |
A motor-vehicle radar system provided with at least one housing includes at least one send/receive element for sending and/or receiving electromagnetic waves, at least one first dielectric member in the beam path of the electromagnetic w...
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JP4813726B2 |
The invention relates to an automotive radar system that comprises at least one element transparent for a sensor radiation for focusing the sensor radiation and/or at least one radome which is not prefocused in the beam path. At least on...
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JP4800986B2 |
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JP2011197011A |
To vary coverage of a detection zone by changing a range gate in each antennal beam.A radar detection process includes computing a derivative of an FFT output signal to detect an object within a specified detection zone. A zero crossing ...
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JP4786110B2 |
The invention relates to a method for improving smart antenna array coverage. Arbitrary beam forming of an antenna array can be implemented by adjusting n antenna units beam forming parameter W(n), based on difference of size and shape b...
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JP4778701B2 |
The high frequency, multiple beam antenna system comprises a focusing device having a profile of revolution created by the cross section of a dielectric lens (2) rotating about an axis (1) located in its plane and radiating elements with...
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JP4771657B2 |
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JP4761219B2 |
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JP4763456B2 |
Folded dipole antenna elements ( 2, 4 ) are disposed generally in parallel, being spaced by a distance smaller than a half of the wavelength employed. The antenna elements ( 2, 4 ) are connected to a combiner ( 16 ) via feeders ( 12, 14 ...
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JP2011155614A |
To exactly read required information on a radio tag attached to an article in a room.The antenna device for the room is equipped with: an electric field type antenna 2 which is provided at the ceiling of a fitting room 1, and irradiates ...
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JP4713292B2 |
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JP4714876B2 |
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JP2011124867A |
To obtain a multi-beam antenna in which all element antennas can be connected by a small number of multi port amplifiers, by fixing output power of each multi-port amplifier.The multi-beam antenna includes: a beam forming circuit 10 whic...
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JP2011122892A |
To facilitate measuring a boresight error of a radome furthermore.A testing device 1 includes: a radio wave generation device 11 for generating a radio wave; a radome support device 20, which is provided with the radome covering the ante...
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JP2011050114A |
To provide a compact antenna element that operates in a high-density circuit environment, is relatively low-cost, and can be used to provide an array antenna having relatively higher performance.An antenna element includes a cover layer ...
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JP4624537B2 |
To provide a noncontact data carrier device which has a noncontact data carrier and an auxiliary antenna and can extend the communication distance of the noncontact data carrier. The noncontact data carrier device 10 has the noncontact d...
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JP4622966B2 |
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JP4615170B2 |
This invention discloses an interference cancellation method based on smart antenna, which can solve various interference in mobile communication system such as multipath propagation etc., while using smart antenna. It comprises: with be...
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