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公开(公告)号：US10361483B2
公开(公告)日：2019-07-23
申请号：US15324879
申请日：2015-08-03
摘要： The antenna device includes: an element part 100 having an excitation element 1, a first passive element 11 having first and second conductive parts 11a and 11b, a second passive element 21 having third and fourth conductive parts 21a and 21b, a first switch 12 controlling conduction between the first and second conductive parts, and a second switch 22 controlling conduction between the third and fourth conductive parts; and a controller 200 outputting an electric signal for controlling conduction of the first and second switches. The controller outputs identical DC signal to the first and second switches, and one of the first and second switches is brought into conduction while the other one is brought out of conduction.
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公开(公告)号：US09917377B2
公开(公告)日：2018-03-13
申请号：US15545896
申请日：2016-02-01
发明人： Makoto Matsuki , Kazunari Kihira , Masataka Otsuka
CPC分类号： H01Q25/02 , G01S3/32 , G01S7/2813 , G01S13/44 , G01S13/4454 , G01S13/4463 , G01S2013/0263 , H01Q3/2617 , H01Q3/2682 , H01Q3/34 , H01Q3/38 , H01Q21/061
摘要： Disclosed is an antenna device in which an excitation phase changing unit (4) for changing the excitation phases of element antennas (2-1n) to (2-8n) by controlling phase shifters (3-1n) to (3-8n) dependently on preset phase values is disposed, and every time the excitation phases are changed by the excitation phase changing unit (4), a radiation pattern forming unit (12) shifts the phases of a sum signal and a difference signal, and forms a monopulse sum pattern by time-integrating the sum signal after phase shift and also forms a monopulse difference pattern by time-integrating the difference signal after phase shift.
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公开(公告)号：US11605903B2
公开(公告)日：2023-03-14
申请号：US16318924
申请日：2016-08-10
摘要： Waveguide slot array antennas each having slots, that transmit or receive electromagnetic waves and that are formed in a front surface of a waveguide and waveguide slot array antennas each having slots that transmit or receive electromagnetic waves and that are formed in a front surface of a waveguide, and the waveguide slot array antennas and the waveguide slot array antennas are alternately arranged, the waveguide is a ridge waveguide having a ridge formed inside the waveguide, and the waveguide is a ridge waveguide having ridges, formed inside the waveguide.
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公开(公告)号：US11128053B2
公开(公告)日：2021-09-21
申请号：US16605482
申请日：2018-01-31
摘要： Included are: a waveguide in which multiple probe inserting holes are provided in a first wall surface, and multiple connection shaft inserting holes are provided in a second wall surface; multiple feed probes each of which is inserted in one of the probe inserting holes, and to a first end of each of which one of multiple circularly polarized element antennas is connected; multiple connection shafts each of which is inserted in one of the connection shaft inserting holes, and a third end of each of which is connected to a second end of one of the feed probes; multiple rotation shafts, a fifth end of each of which is connected to a fourth end of one of the connection shafts; multiple rotation devices each of which rotates one of the rotation shafts; and a control device that individually controls rotation of the rotation devices.
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公开(公告)号：US10142000B2
公开(公告)日：2018-11-27
申请号：US15562784
申请日：2015-04-15
IPC分类号： H04B7/04 , H04B7/06 , H04B7/0452 , H04B7/0408
摘要： A sub-array number determinator is provided to determine a number of sub-arrays to be allocated to each of user terminals detected by a terminal position detector on a basis of relation between positions of the user terminals and a position of an antenna apparatus. An antenna selector selects sub-arrays for the number determined by the sub-array number determinator from among the sub-arrays and allocates the selected sub-arrays for the determined number to each of the user terminals. This structure is capable of preventing interference among beams for user terminals and providing excellent communication quality to the user terminals even in condition where the user terminals are adjacent to each other.
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公开(公告)号：US10992039B2
公开(公告)日：2021-04-27
申请号：US16327648
申请日：2016-08-30
发明人： Kei Yokokawa , Jun Goto , Kazunari Kihira , Tomohiro Takahashi , Masataka Otsuka , Narihiro Nakamoto , Toru Fukasawa , Takuro Sasaki , Tomohiro Mizuno
摘要： An array antenna device, including: a waveguide (1) having a plurality of radiation units (2) arranged on one tube wall thereof, in which the waveguide (1) has a plurality of grooves (3) arranged on an inner side of a tube wall facing the tube wall, movable short-circuit surfaces (4) each electrically short-circuited to an inner wall of one of the grooves (3), and movable short-circuit surface controlling mechanisms (5) for changing positions of the movable short-circuit surfaces (4).
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公开(公告)号：US10923813B2
公开(公告)日：2021-02-16
申请号：US16072125
申请日：2016-01-29
摘要： A signal combiner (33) specifies a weighting coefficient w for suppressing a grating lobe included in a composite signal S3 obtained when combining a digital received signal S1 and digital received signal S2 stored by a signal calculation storage (31), from the gain in a grating lobe direction in a first radiation pattern and the gain in a grating lobe direction in a second radiation pattern, and combines the digital received signal S1 and digital received signal S2 stored by the signal calculation storage (31) using the weighting coefficient w.
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公开(公告)号：US11183771B2
公开(公告)日：2021-11-23
申请号：US16638715
申请日：2018-05-18
摘要： Included are: a first dielectric substrate provided with a first conductor ground plane on a front or back surface thereof; a plurality of patch antennas formed in the first conductor ground plane, a plurality of conductive members, ends of which connected to the first conductor ground plane to surround the patch antennas individually, and a second conductor ground plane connected to each of the other ends of the conductive members, and parts of the plurality of conductive members penetrate the first dielectric substrate, and the remaining parts of the conductive members function as spacers for providing an air layer between the first dielectric substrate and the second conductor ground plane, and the plurality of conductive members functions as spacers for providing an air layer between the first conductor ground plane and the second conductor ground plane.
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公开(公告)号：US10355740B2
公开(公告)日：2019-07-16
申请号：US16076787
申请日：2017-02-21
发明人： Satoshi Yamaguchi , Hikaru Watanabe , Tasuku Kuriyama , Takashi Maruyama , Masataka Otsuka , Hideki Morishige
摘要： An array antenna device AAD including: a plurality of element antennas EAs; a transmission/reception module TRM, which is to be connected to one of the EAs, and includes a transmission circuit TC, a reception circuit RC, and a transmission/reception switch; a transmission/reception controller controlling by controlling an amplitude and phase of a signal passing through each TC and RC, and by switching transmission/reception; a distributor distributing a signal from a signal transmitter to each TC to transmit a distributed signal from the each TC; a combiner combining a signal from the each RC; and a receiver receiving the combined signal. A detection signal, which contains a detected amplitude and phase of the signal received by the receiver, is corrected with a piece of interconnection amplitude-phase information about the EAs to obtain a calibration value in calibration of each TRM, and calibration is conducted with the calibration value.
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公开(公告)号：US10326201B2
公开(公告)日：2019-06-18
申请号：US16078595
申请日：2017-01-27
摘要： There are provided a communication excitation distribution calculating unit (11) that calculates an excitation distribution W1(t) of a communication beam using an excitation phase distribution S that directs a main lobe of the communication beam in a communication direction; an interference excitation distribution calculating unit (14) that calculates an excitation distribution W2(t) of an interference beam using an excitation phase distribution D that forms a null of an antenna pattern in the communication direction; and an excitation distribution combining unit (20) that combines the excitation distribution W1(t) of the communication beam and the excitation distribution W2(t) of the interference beam. An amplitude/phase controlling unit (30) controls amplitudes and phases of carrier signals to be provided to element antennas (3-1) to (3-K), in accordance with the combined excitation distribution obtained by the excitation distribution combining unit (20).
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