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公开(公告)号：US20220173508A1
公开(公告)日：2022-06-02
申请号：US17673798
申请日：2022-02-17
发明人： Hideki UEDA , Yasuhisa YAMAMOTO , Masashi OMURO , Kazunari KAWAHATA , Satoshi TANAKA , Ryuken MIZUNUMA
摘要： A first antenna, a second antenna, and a waveguide structure are housed in a single cabinet. An operating frequency of the second antenna is higher than an operating frequency of the first antenna. The second antenna is an array antenna including a plurality of radiating elements. The waveguide structure is present outside a range of a half-value angle of a main beam as viewed from the first antenna, includes a unit waveguide disposed in a route of a radio wave received by the second antenna, and further attenuates a radio wave with the operating frequency of the first antenna.
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公开(公告)号：US20200312798A1
公开(公告)日：2020-10-01
申请号：US16899873
申请日：2020-06-12
发明人： Kazunari KAWAHATA
摘要： A feeding element is disposed on or in a first substrate. A second substrate overlies the feeding element. The second substrate is a flexible substrate including an extending portion extending outside the first substrate. A parasitic element coupled to the feeding element is disposed on or in the second substrate. A radiating electrode connected to the parasitic element is disposed on the extending portion of the second substrate.
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公开(公告)号：US20210105030A1
公开(公告)日：2021-04-08
申请号：US17032345
申请日：2020-09-25
发明人： Kazunari KAWAHATA , Ryuken MIZUNUMA , Hideki UEDA , Satoshi TANAKA , Masashi OMURO , Yasuhisa YAMAMOTO
摘要： A feed line connects an RFIC and a radiating element. A baseband ground plane (BB ground) is connected to a ground terminal of a BBIC. A radio frequency ground plane (RF ground) is placed in such a manner as to overlap the BB ground. The RF ground serves as a return path of the feed line. A first inter-ground connection circuit connects the BB ground and the RF ground. Furthermore, a second inter-ground connection circuit connects the BB ground and the RF ground. Connecting parts between these grounds and the second inter-ground connection circuit are arranged closer to the edges of these grounds than connecting parts between these grounds and the first inter-ground connection circuit. The connecting part between the ground and the second inter-ground connection circuit is placed on one side of a certain imaginary straight line that passes substantially the geometric center of the ground.
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公开(公告)号：US20190058251A1
公开(公告)日：2019-02-21
申请号：US16029020
申请日：2018-07-06
发明人： Kazunari KAWAHATA
CPC分类号： H01Q21/20 , H01Q1/246 , H01Q5/35 , H01Q5/40 , H01Q9/0407 , H01Q9/16 , H01Q9/40 , H01Q15/08 , H01Q19/06 , H01Q19/062 , H01Q21/065
摘要： A Luneburg lens antenna device includes a Luneburg lens, a plurality of patch antennas, and a plurality of low-frequency antennas. The Luneburg lens is formed in a cylindrical shape and includes three dielectric layers having different dielectric constants and stacked on each other in the radial direction. The plurality of patch antennas respectively include ground electrodes which cover the outer peripheral surface of radiating elements, and form high-frequency MIMO antennas. The plurality of low-frequency antennas are monopole antennas using the ground electrodes, and form low-frequency MIMO antennas.
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公开(公告)号：US20130285875A1
公开(公告)日：2013-10-31
申请号：US13928139
申请日：2013-06-26
发明人： Kazunari KAWAHATA
IPC分类号： H01Q21/30
摘要： A multi-band antenna device includes a frequency variable circuit, a first radiating element used in a first frequency band, a second radiating element used in a second frequency band lower than the first frequency band, and a power supply circuit. The frequency variable circuit includes a parallel resonant circuit in which a capacitor and an inductor are connected in parallel, and a first variable capacitance element connected in parallel with the capacitor. An end of the parallel resonant circuit and the first variable capacitance element are connected to the power supply circuit and the first radiating element. Another end of the parallel resonant circuit and the first variable capacitance element are connected to the second radiating element. The parallel resonant circuit has a resonant frequency closer to the first frequency band than to the second frequency band.
摘要翻译： 多频带天线装置包括频率可变电路，在第一频带中使用的第一辐射元件，在比第一频带低的第二频带中使用的第二辐射元件和电源电路。 频率可变电路包括并联连接有电容器和电感器的并联谐振电路以及与电容器并联连接的第一可变电容元件。 并联谐振电路和第一可变电容元件的端部连接到电源电路和第一辐射元件。 并联谐振电路和第一可变电容元件的另一端连接到第二辐射元件。 并联谐振电路具有比第二频带更接近于第一频带的谐振频率。
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公开(公告)号：US20220173530A1
公开(公告)日：2022-06-02
申请号：US17672696
申请日：2022-02-16
发明人： Hideki UEDA , Yasuhisa YAMAMOTO , Masashi OMURO , Kazunari KAWAHATA , Satoshi TANAKA , Ryuken MIZUNUMA
摘要： An antenna device comprises a substrate including a planar first region and a planar second region; at least one first radiating element, arranged in the first region, that communicates a radio wave of a first frequency; and at least one second radiating element, arranged in the second region, that communicates a radio wave of a second frequency. A separation direction is a direction of a straight line connecting a first geometric center position of the at least one first radiating element and a second geometric center position of the at least one second radiating element, and in a case that the second region is viewed along a normal direction of the second region, an angle formed by the separation direction and a polarization direction of the at least one second radiating element is equal to or greater than 45° and equal to or less than 90°.
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7.发明申请公开(公告)号：US20200379086A1
公开(公告)日：2020-12-03
申请号：US16997605
申请日：2020-08-19
IPC分类号： G01S7/41 , G01S7/35 , G01S7/02 , G01S13/42 , G01S13/931
摘要： Provided is an object shape detection apparatus that can detect the shape of a raised or depressed portion on the surface of an object. In accordance with a comparison result obtained by a reflection intensity comparator with regard to intensity of a horizontally polarized wave component and a vertically polarized wave component of a reflected wave, the object shape determiner detects the shape of the raised portion and the shape of the depressed portion of a detection target object. The object locator detects the position of the raised portion and the position of the depressed portion of the detection target object by measuring the distance to the raised portion and the distance to the depressed portion of the detection target object detected by the object shape determiner.
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公开(公告)号：US20240186713A1
公开(公告)日：2024-06-06
申请号：US18401734
申请日：2024-01-02
发明人： Kazunari KAWAHATA
IPC分类号： H01Q15/08 , G01S7/03 , G01S13/931 , H01Q19/06 , H01Q21/06
CPC分类号： H01Q15/08 , G01S7/03 , G01S13/931 , H01Q19/06 , H01Q21/065
摘要： A micro lens array that includes a planar array antenna including a plurality of planar antennas formed on a substrate, a plurality of dielectric lenses each provided above each of the plurality of planar antennas, and a plurality of dielectric plates each provided on part of the substrate, the part being provided between two adjacent dielectric lenses of the plurality of dielectric lenses.
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公开(公告)号：US20130293432A1
公开(公告)日：2013-11-07
申请号：US13937026
申请日：2013-07-08
CPC分类号： H01Q1/50 , B81B7/02 , H01Q5/321 , H01Q5/335 , H04B1/0458 , H04W52/0209 , Y02D70/1262 , Y02D70/40
摘要： Provided is a MEMS module that includes a MEMS element having a first capacitor electrode that can be displaced, a second capacitor electrode that opposes the first capacitor electrode, and driving electrodes that cause the first capacitor electrode to be displaced. The driving electrodes are connected to a control unit that applies a driving voltage to the driving electrodes and monitor terminals for detecting power. Thus, an element for monitoring power is not needed and a MEMS module, a variable reactance circuit and an antenna device are provided that are capable of realizing smaller size and lower loss.
摘要翻译： 提供了一种MEMS模块，其包括具有可移位的第一电容器电极的MEMS元件，与第一电容器电极相对的第二电容器电极以及使第一电容器电极移位的驱动电极。 驱动电极连接到向驱动电极施加驱动电压的控制单元和用于检测电力的监视端子。 因此，不需要用于监视功率的元件，并且提供能够实现更小尺寸和更低损耗的MEMS模块，可变电抗电路和天线装置。
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