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公开(公告)号：US20240186712A1
公开(公告)日：2024-06-06
申请号：US18382618
申请日：2023-10-23
CPC分类号： H01Q15/0086 , H01Q15/0013 , H01Q15/12 , H01Q15/246 , H01Q17/007 , H01Q17/008 , G02B1/002
摘要： An electromagnetic energy absorber comprising a thin electrically-conductive ground plane as a base. Dielectric layers are positioned over the ground plane and high impedance surface (HIS) as a top layer. The impedance layer can be formed by loading the lumped resistor to a metallic grating like an FSS (Frequency Selective Surface). An air-spacer between the substrates has replaced the problem of the large electrical thickness of the substrate with effective permittivity. Metamaterial structures enable control over the resonant frequencies, and performance is enhanced over a broad frequency band. In addition, two broadband reflective-type linear to orthogonal polarization converters are disclosed that provide improved bandwidth and angular stability performance.
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公开(公告)号：US11996616B2
公开(公告)日：2024-05-28
申请号：US17324757
申请日：2021-05-19
CPC分类号： H01Q15/246 , H01Q9/30 , H01Q21/0075
摘要： An antenna for wireless communications includes a horizontal polarization antenna and a vertical polarization antenna that are disposed in a stacked manner. The horizontal polarization antenna includes a radiation element and a double-sided parallel strip line. One end of the double-sided parallel strip line is connected to the radiation element. A length range of the double-sided parallel strip line is 0.58 to 1.35 times a waveguide wavelength of an electromagnetic wave in the double-sided parallel strip line at an operating frequency of the vertical polarization antenna.
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公开(公告)号：US20240113443A1
公开(公告)日：2024-04-04
申请号：US18526202
申请日：2023-12-01
发明人： Amr Abdelmonem , Anthony Teillet , Richard Loy Smith, JR. , David E. Urbasic , Richard David Peacock , Andre F.A. Fournier , Guenadi Miliavski
IPC分类号： H01Q15/24
CPC分类号： H01Q15/246
摘要： Aspects of the subject disclosure may include, for example, a polarization shifter including a lower substrate having disposed thereon first and second transmission lines for coupling to a feed network, an upper substrate having disposed thereon third and fourth transmission lines for respective communicative coupling to orthogonally-polarized elements of a radiating element, and a dielectric layer residing between the lower substrate and the upper substrate, the upper substrate being configured to mechanically couple to the radiating element, the dielectric layer coupling the first transmission line with the third transmission line and coupling the second transmission line with the fourth transmission line, the upper substrate being rotatable relative to the lower substrate to effect polarization adjusting for the radiating element to facilitate avoidance of interference or passive intermodulation (PIM). Other embodiments are disclosed.
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公开(公告)号：US11870963B2
公开(公告)日：2024-01-09
申请号：US17892795
申请日：2022-08-22
CPC分类号： H04N1/32138 , H01Q1/2208 , H01Q15/246 , H04N1/00411 , H04N1/00482 , H04N1/00602
摘要： According to an embodiment, an image forming apparatus includes a sheet conveyance unit that is configured to transport a print medium along a conveyance path. An antenna is configured to emit radio waves towards a predetermined portion of the conveyance path. A controller is configured to control the antenna to emit the radio waves towards the predetermined portion with a polarization direction set according to a type of the print medium being transported by the sheet conveyance unit. The print medium may have, for example, one or more wireless tags thereon or therein.
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公开(公告)号：US20230420857A1
公开(公告)日：2023-12-28
申请号：US18038372
申请日：2021-11-17
申请人： HUBER+SUHNER AG
CPC分类号： H01Q13/0233 , H01Q1/3233 , H01Q15/246 , H01Q21/005 , H01Q21/064
摘要： The disclosure is directed to an antenna device (1) comprising a printed circuit board (2) and a thereon arranged electronic component (3). The antenna device (1) comprises at least two individual antenna elements (12) which are interconnected to the electronic component (3) configured to transmit and receive a signal. The antenna elements (12) each comprise at least one waveguide channel (9) interconnecting in the antenna assembly (6). A first waveguide aperture (10) is arranged at a back face (16) of the antenna assembly (6). Said first waveguide aperture (10) is interconnected to the electronic component (3) and configured to transmit and/or receive a signal. A second waveguide aperture (11) is arranged at a front face (17) of the waveguide assembly (6) and is also configured to transmit and/or receive a signal.
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公开(公告)号：US11831073B2
公开(公告)日：2023-11-28
申请号：US17313448
申请日：2021-05-06
CPC分类号： H01Q15/0086 , H01Q15/0013 , H01Q15/12 , H01Q15/246 , H01Q17/007 , H01Q17/008 , G02B1/002
摘要： An electromagnetic energy absorber comprising a thin electrically-conductive ground plane as a base. Dielectric layers are positioned over the ground plane and high impedance surface (HIS) as a top layer. The impedance layer can be formed by loading the lumped resistor to a metallic grating like an FSS (Frequency Selective Surface). An air-spacer between the substrates has replaced the problem of the large electrical thickness of the substrate with effective permittivity. Metamaterial structures enable control over the resonant frequencies, and performance is enhanced over a broad frequency band. In addition, two broadband reflective-type linear to orthogonal polarization converters are disclosed that provide improved bandwidth and angular stability performance.
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公开(公告)号：US09799955B2
公开(公告)日：2017-10-24
申请号：US14733350
申请日：2015-06-08
发明人： Michael Koster
IPC分类号： H01Q3/00 , H01Q3/36 , H01P1/195 , H01P1/165 , H01P1/18 , H01P1/19 , H01Q3/44 , H01Q3/34 , H01P5/12 , H01Q15/24
CPC分类号： H01Q3/36 , H01P1/165 , H01P1/182 , H01P1/19 , H01P1/195 , H01P5/12 , H01Q3/34 , H01Q3/44 , H01Q15/246
摘要： A ferrite controller includes a single array of two or more ferrite control elements. The ferrite control elements each include a radio frequency (RF) path assembly that includes a RF path ferrite element and a RF path dielectric element. The ferrite control elements also include a magnetizing ferrite assembly that includes a magnetizing ferrite element; one or more structural dielectric elements; and a flexible insulated waveguide wall. The magnetizing ferrite element is attached to the one or more structural dielectric elements, wherein the flexible insulated waveguide wall surrounds the magnetizing ferrite element and the structural dielectric elements, wherein the RF path ferrite element and the magnetizing ferrite element are attached to form a ferrite toroid. The ferrite control elements also include two tapered impedance matching transformers attached to the RF path assembly and the magnetizing ferrite assembly.
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8.发明授权公开(公告)号：US09728861B2
公开(公告)日：2017-08-08
申请号：US14428607
申请日：2013-09-13
申请人： NEC Corporation
发明人： Kosuke Tanabe
CPC分类号： H01Q19/185 , H01Q1/24 , H01Q1/42 , H01Q3/20 , H01Q15/14 , H01Q15/246 , H04B1/40 , H04B7/145
摘要： A reflector device having first and second reflector plates to which a reflective surface is attached, respectively, at a prescribed angle of inclination in relation to an axis of rotation, wherein the first reflector plate (1) and the second reflector plate are positioned so as to face one another, and the first reflector plate and/or the second reflector plate are/is capable of rotating around the axis of rotation.
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公开(公告)号：US20170040708A1
公开(公告)日：2017-02-09
申请号：US15303854
申请日：2015-03-13
申请人： NEC Corporation
发明人： Yoshihide TAKAHASHI
摘要： A radio system includes: a radio device; an antenna device; and a polarization converting circuit for changing the directions of polarized waves, inserted at a position between the radio device and the antenna device. The polarization converting circuit is installed inside a holder in a device interface portion, and the device interface portion has a through hole that penetrates from the outer wall of the device interface portion to the outer periphery of the polarization converting circuit and is used to confirm the rotating angle of the polarization converting circuit inside the holder.
摘要翻译： 无线电系统包括：无线电设备; 天线装置; 以及偏振转换电路，用于改变插入在无线电设备和天线装置之间的位置处的极化波的方向。 偏振转换电路安装在器件接口部分的保持器的内部，器件接口部分具有从器件接口部分的外壁穿透到偏振转换电路的外周的通孔，并用于确认 保持器内的偏振转换电路的旋转角度。
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公开(公告)号：US20160172766A1
公开(公告)日：2016-06-16
申请号：US14567594
申请日：2014-12-11
发明人： William Milroy
IPC分类号： H01Q15/24
CPC分类号： H01Q15/242 , H01Q15/244 , H01Q15/246
摘要： An antenna system includes an antenna having an aperture, and a polarizer array. The polarizer array includes a support structure, at least two polarizer elements arranged relative to the support structure, each of the at least two polarizer elements rotatable about a separate axis, and an actuator coupled to the at least two polarizer elements, the actuator operative to effect common rotation of the at least two polarizer elements. The polarizer array is arranged to at least partially cover the antenna aperture.
摘要翻译： 天线系统包括具有孔径的天线和偏振器阵列。 偏振器阵列包括支撑结构，相对于支撑结构布置的至少两个偏振器元件，所述至少两个偏振器元件中的每一个可绕独立的轴线旋转，以及联接到所述至少两个偏振器元件的致动器，所述致动器操作成 影响至少两个偏光元件的共同旋转。 偏振器阵列被布置成至少部分地覆盖天线孔径。
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