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公开(公告)号：US12062847B2
公开(公告)日：2024-08-13
申请号：US17687422
申请日：2022-03-04
发明人： Bing Luo , Jianping Li , Wenfei Qin
CPC分类号： H01Q1/523 , H01Q21/062 , H01Q21/30
摘要： This application discloses an antenna, an antenna array, and a communications device. The antenna includes a radiation part and a feeding part. The feeding part is coupled to the radiation part and is configured to feed power to the radiation part, so that the radiation part radiates a low-frequency signal outward. The radiation part includes one or more frequency selection units with a bandpass characteristic, and the radiation part is a structure that is capable of exciting, when a high-frequency signal passes through, coupling currents. When the high-frequency signal passes through the radiation part, each pair of coupling currents excited on the radiation part appear in pairs and can cancel each other. This can reduce or even completely eliminate a high-frequency induced current with the same frequency as the high-frequency signal on the radiation part.
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2.发明授权公开(公告)号：US10484088B2
公开(公告)日：2019-11-19
申请号：US15277802
申请日：2016-09-27
发明人： Zhaohui Li , Jianping Li , Dawei Wang
IPC分类号： H04B10/079 , H04B10/50 , H04B10/61
摘要： The present invention discloses an apparatus. The apparatus includes: a coherent receiving unit, configured to perform coherent synthesis on a received to-be-detected optical signal and a multi-wavelength local oscillation laser beam, and convert a coherent receiving signal formed by means of the coherent synthesis into an analog electrical signal; a data acquiring unit, configured to acquire the analog electrical signal output by the coherent receiving unit, and convert the analog electrical signal into a digital signal; a power spectrum generation unit, configured to process the digital signal output by the data acquiring unit, to generate a continuous full power spectrum of the to-be-detected optical signal; and an optical performance parameter monitoring unit, configured to monitor, according to the continuous full power spectrum generated by the power spectrum generation unit, an optical performance parameter of a transmission link carrying the to-be-detected optical signal.
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公开(公告)号：US20230344114A1
公开(公告)日：2023-10-26
申请号：US18342922
申请日：2023-06-28
发明人： Zhiming Yang , Jianping Li , Runxiao Zhang , Weifeng Hu
CPC分类号： H01Q1/246 , H01Q1/42 , H01Q19/10 , H01Q21/061
摘要： An antenna includes a reflection plate, a radome, a radiating element, and a feeding network. The reflection plate has a first surface and a second surface, and the first surface is opposite to the second surface. The radome is covered on the reflection plate, the radome and the first surface of the reflection plate constitute an accommodation space. The radiating element is located in the accommodation space, and the radiating element is electrically connected to the feeding network. The feeding network is at least partially disposed on the second surface of the reflection plate.
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公开(公告)号：US11671128B2
公开(公告)日：2023-06-06
申请号：US17171038
申请日：2021-02-09
发明人： Weihong Xiao , Zhiqiang Liao , Jianping Li , He Cui
IPC分类号： H04B1/04 , H04B1/7093 , H04L5/14
CPC分类号： H04B1/0475 , H04B1/7093 , H04L5/14 , H04B2001/70935
摘要： This application provides an antenna system and a base station. The antenna system includes a radiation array, a transceiver (TRX) unit, and a filter bank. The radiation array includes a transmit antenna element group and a receive antenna element group that are separately disposed. The transmit antenna element group is configured to transmit a signal, and the receive antenna element group is configured to receive a signal. The TRX unit includes a transmit module and a receive module. The filter bank includes a first-type filter and a second-type filter. The first-type filter is connected between the transmit antenna element group and the transmit module, and the second-type filter is connected between the receive antenna element group and the receive module. The antenna system in this application can reduce interference between a passive intermodulation (PIM) signal generated by a transmitted signal and a received signal.
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公开(公告)号：US20230344113A1
公开(公告)日：2023-10-26
申请号：US18342696
申请日：2023-06-27
发明人： Xun Zhang , Wenao Li , Jianping Li
摘要： A base station antenna is disclosed. The base station antenna includes a feed mechanism and at least one antenna module. Each antenna module includes at least two antenna units, and each antenna unit has a first sub-radiation phase slope. In each antenna module, first sub-radiation phase slopes of the at least two antenna units are different, and each antenna unit is connected to the feed mechanism through a corresponding feeder that is in a one-to-one correspondence with the antenna unit, where the feeder has a second sub-radiation phase slope. The antenna unit and the corresponding feeder form one radiating element, and a radiation phase slope of each radiating element is a sum of the first sub-radiation phase slope of the antenna unit and the second sub-radiation phase slope of the corresponding feeder.
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公开(公告)号：US20230291099A1
公开(公告)日：2023-09-14
申请号：US18319426
申请日：2023-05-17
发明人： Tao Pu , Jia Lv , Jianping Li , Runxiao Zhang
CPC分类号： H01Q3/34 , H01Q3/02 , H01Q1/1228 , H01Q21/10
摘要： This disclosure provides an antenna system to improve communication flexibility. The antenna system includes a radio frequency unit, a divider, a first modulator, a second modulator, a first antenna and a second antenna. The radio frequency unit is configured to generate a first radio frequency signal. The divider is configured to divide the first radio frequency signal into first and second radio frequency sub-signals. The first modulator is configured to adjust a first electrical downtilt of the first radio frequency sub-signal and send the adjusted first radio frequency sub-signal to the first antenna for transmission. The second modulator is configured to adjust a second electrical downtilt of the second radio frequency sub-signal and send the adjusted second readio frequency sub-sibnal to the second antenna for transmission. The adjustion is based on a target downtilt of the first radio frequency signal and a mechanical downtitlt of the first or second antenna.
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公开(公告)号：US12113283B2
公开(公告)日：2024-10-08
申请号：US17405868
申请日：2021-08-18
发明人： Xun Zhang , Jianping Li , Xiaodeng Duan , Wenao Li
CPC分类号： H01Q21/0006 , H01P5/10 , H01Q1/12 , H01Q1/36 , H01Q19/108 , H01Q21/062
摘要： Embodiments of this application provide a radiation apparatus and a multi-band array antenna, and relate to the field of antenna technologies. The radiation apparatus includes a radiation module, a first conductor balun, and a second conductor balun. The first conductor balun is mechanically connected to the second conductor balun under the radiation module. The radiation module includes a first radiation unit and a second radiation unit in a +45° polarization direction, and a third radiation unit and a fourth radiation unit in a −45° polarization direction. The first conductor balun is configured to feed a first differential signal to the first radiation unit and the second radiation unit. The second conductor balun is configured to feed a second differential signal to the third radiation unit and the fourth radiation unit. The first conductor balun and the second conductor balun are disposed in the same plane.
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公开(公告)号：US12074381B2
公开(公告)日：2024-08-27
申请号：US17707683
申请日：2022-03-29
发明人： Fangqing Duan , Jianping Li
CPC分类号： H01Q3/32 , F16H19/043
摘要： An adjustment apparatus is provided, which includes a drive unit; a plurality of adjustment rods correspondingly connected to a plurality of loads, the plurality of adjustment rods are classified into a first adjustment rod group and a second adjustment rod group; a selection unit, wherein the drive unit is configured to drive the selection unit to be connected to at least one adjustment rod in the first adjustment rod group or at least one adjustment rod in the second adjustment rod group; a shift unit, wherein the shift unit is configured to enable the selection unit to be switched between the first adjustment rod group and the second adjustment rod group; and an adjustment unit, wherein the drive unit is configured to drive the adjustment unit to drive the adjustment rod connected to the selection unit to move.
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公开(公告)号：US20240283138A1
公开(公告)日：2024-08-22
申请号：US18621837
申请日：2024-03-29
发明人： Weihong Xiao , Zhiqiang Liao , He Cui , Jianping Li
CPC分类号： H01Q1/246 , H01Q1/42 , H01Q15/0013
摘要： An antenna system and a base station antenna feeder system are provided. The antenna system includes a first frequency band radiation element array, a frequency selective surface, a second frequency band radiation element, and a phase shifter. The frequency selective surface is configured to reflect a signal of the first frequency band radiation element array and to transmit a signal of the second frequency band radiation element array. The phase shifter is connected to the first frequency band radiation element array and is configured to feed the first frequency band radiation element array. The phase shifter includes a cavity which is disposed at an edge of the frequency selective surface, a first extension direction of the cavity being consistent with a second extension direction of the first frequency band radiation element array.
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公开(公告)号：US20220285858A1
公开(公告)日：2022-09-08
申请号：US17827727
申请日：2022-05-29
发明人： Weihong Xiao , Jianping Li , Tao Pu , Runxiao Zhang
摘要： This application provides an antenna system. The antenna system includes a first reflection panel, a first antenna array, and a second antenna array. The first antenna array and the second antenna array are stacked on the first reflection panel. The first antenna array and the second antenna array share the first reflection panel. The first antenna array and the second antenna array operate on different frequency bands.
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