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公开(公告)号:US11456542B2
公开(公告)日:2022-09-27
申请号:US17268553
申请日:2019-08-08
Applicant: CommScope Technologies LLC
Inventor: Jian Liu , HongHui Chen , Yuemin Li
Abstract: A first band radiating element for a multi-band antenna comprises at least one first band dipole that has a first dipole arm and a second dipole arm that each include one or more arm segments, and the number of the arm segments of the first dipole arm is greater than the number of the arm segments of the second dipole arm.
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公开(公告)号:US20210257720A1
公开(公告)日:2021-08-19
申请号:US17170085
申请日:2021-02-08
Applicant: CommScope Technologies LLC
Inventor: Fangwen Wan , Hangsheng Wen , Yuemin Li
Abstract: An antenna assembly includes a first interface for receiving a first RF signal, a second interface for receiving a second RF signal, and an antenna array including a first array and a second array that extend vertically. The first array includes a first radiating element and a second radiating element, and the second array includes a third radiating element and a fourth radiating element. A power coupling circuit is provided, which is configured to feed a first sub-component of the first RF signal and a first sub-component of the second RF signal to the first radiating element and/or the third radiating element in a power-reduced coupling manner. A plurality of radiating elements in the first array are electrically connected to the first interface, and a plurality of radiating elements in the second array are electrically connected to the second interface, respectively.
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公开(公告)号:US20230163448A1
公开(公告)日:2023-05-25
申请号:US17932329
申请日:2022-09-15
Applicant: CommScope Technologies LLC
Inventor: Haifei Qin , Junfeng Yu , Yuemin Li , Rongrong Zhang
Abstract: The present disclosure relates to a transmission mechanism for a base station antenna, and a base station antenna including the transmission mechanism. The transmission mechanism comprises: a worm gear unit, which is arranged on the first side of the reflector of the base station antenna and includes a worm driven by a motor and a worm gear meshed with the worm; a bevel gear pair unit, which is arranged on the second side of the reflection plate opposite to the first side and includes a first bevel gear and a second bevel gear meshed with each other, wherein the first bevel gear and the worm gear are coaxially installed on a first drive shaft; and at least one rack-and-pinion unit arranged on the second side of the reflection plate, wherein each rack-and-pinion unit includes a third gear and a rack element meshed with each other, all the third gears and the second bevel gears of the at least one rack-and-pinion unit are coaxially installed on a second drive shaft, and each rack element is fixed on the connecting rod of the phase shifter of the base station antenna for driving the connecting rod to move longitudinally. The transmission mechanism not only occupies a small total volume, but can also be installed in different spaces dispersedly, so that it can better adapt to the trend that the inner space of the base station antenna is getting smaller and more dispersed.
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公开(公告)号:US11417944B2
公开(公告)日:2022-08-16
申请号:US17170085
申请日:2021-02-08
Applicant: CommScope Technologies LLC
Inventor: Fangwen Wan , Hangsheng Wen , Yuemin Li
Abstract: An antenna assembly includes a first interface for receiving a first RF signal, a second interface for receiving a second RF signal, and an antenna array including a first array and a second array that extend vertically. The first array includes a first radiating element and a second radiating element, and the second array includes a third radiating element and a fourth radiating element. A power coupling circuit is provided, which is configured to feed a first sub-component of the first RF signal and a first sub-component of the second RF signal to the first radiating element and/or the third radiating element in a power-reduced coupling manner. A plurality of radiating elements in the first array are electrically connected to the first interface, and a plurality of radiating elements in the second array are electrically connected to the second interface, respectively.
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公开(公告)号:US20240145904A1
公开(公告)日:2024-05-02
申请号:US18484960
申请日:2023-10-11
Applicant: CommScope Technologies LLC
Inventor: Changfu Chen , Haifei Qin , Yuemin Li , Junfeng Yu , Long Shan
Abstract: A base station antenna includes: a reflector; a first radiator located at the front side of the reflector; an ground conductor located at the rear side of the reflector, the ground conductor forming a chamber with an opening forward; and a first stripline conductor mounted in the chamber configured to feed the first radiator, the first stripline conductor extending in a plane substantially parallel to the reflector; where the reflector and the ground conductor are configured such that the opening is capped by the reflector, and the reflector is grounded via the ground conductor, so that the first stripline conductor and the ground conductor and the reflector are configured as a first strip transmission line.
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公开(公告)号:US20240030591A1
公开(公告)日:2024-01-25
申请号:US18025295
申请日:2021-09-01
Applicant: CommScope Technologies LLC
Inventor: Qiang Liu , Changfu Chen , Rongrong Zhang , Yuemin Li
CPC classification number: H01Q1/246 , H01Q19/108 , H01Q21/06
Abstract: A base station antenna that may include radiating elements having tilted dipoles. For example, a base station antenna may include a reflector and a plurality of radiating elements, each radiating element mounted on the front surface of the reflector and having a support stalk and at least one dipole mounted to the support stalk. The radiating elements include a plurality of first radiating elements configured to operate in a first operating frequency band, and arranged in one or more first columns extending along a first direction; and a plurality of second radiating elements, configured to operate in a second operating frequency band different from the first operating frequency band, and arranged in one or more second columns extending along the first direction. At least one dipole of a first of the second radiating elements in at least one of the second columns is tilted around the first direction.
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公开(公告)号:US11437722B2
公开(公告)日:2022-09-06
申请号:US16875324
申请日:2020-05-15
Applicant: CommScope Technologies LLC
Inventor: Bo Wu , Peter J. Bisiules , Ligang Wu , Hangsheng Wen , Yuemin Li
Abstract: Multi-band antennas utilize compact multi-band dipole-type radiating elements having multiple arms, including a front facing arm and a rear facing arm that respectively target higher and lower frequency bands. These higher and lower frequency bands may include, but are not limited to, a relatively wide band (e.g., 1695-2690 MHz) associated with the front facing arm and somewhat narrower and nonoverlapping band (e.g., 1427-1518 MHz) associated with the rear facing arm. The front facing arm may extend on a “front” layer of a multi-layer printed circuit board and the rear facing arm may extend at least partially on a “rear” layer of the printed circuit board. A resonant LC (or CLC) network is provided, which is integrated into the rear facing arm and at least capacitively coupled to the front facing arm. This resonant network advantageously supports low-pass filtering from the front facing arm to the rear facing arm, to thereby support the multiple and nonoverlapping bands.
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公开(公告)号:US10833388B2
公开(公告)日:2020-11-10
申请号:US16454377
申请日:2019-06-27
Applicant: CommScope Technologies LLC
Inventor: Honghui Chen , Yuemin Li , Haifeng Li
Abstract: The present disclosure relates to couplers suitable for use in communications systems. The coupler comprises: a main conductive line comprising a first main section and a second main section; a first auxiliary conductive line comprising a first auxiliary section and a first end portion, wherein the first auxiliary section is configured to couple with the main conductive line to generate a first coupled signal; a second auxiliary conductive line comprising a second auxiliary section and a second end portion, wherein the second auxiliary section is configured to couple with the main conductive line to generate a second coupled signal; a transmission module that is configured to combine the first coupled signal and the second coupled signal into an output signal of the microstrip coupler and to pass the output signal to an outlet; and a coupled port coupled to the outlet and used for outputting the output signal.
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公开(公告)号:US20200373668A1
公开(公告)日:2020-11-26
申请号:US16875324
申请日:2020-05-15
Applicant: CommScope Technologies LLC
Inventor: Bo Wu , Peter J. Bisiules , Ligang Wu , Hangsheng Wen , Yuemin Li
Abstract: Multi-band antennas utilize compact multi-band dipole-type radiating elements having multiple arms, including a front facing arm and a rear facing arm that respectively target higher and lower frequency bands. These higher and lower frequency bands may include, but are not limited to, a relatively wide band (e.g., 1695-2690 MHz) associated with the front facing arm and somewhat narrower and nonoverlapping band (e.g., 1427-1518 MHz) associated with the rear facing arm. The front facing arm may extend on a “front” layer of a multi-layer printed circuit board and the rear facing arm may extend at least partially on a “rear” layer of the printed circuit board. A resonant LC (or CLC) network is provided, which is integrated into the rear facing arm and at least capacitively coupled to the front facing arm. This resonant network advantageously supports low-pass filtering from the front facing arm to the rear facing arm, to thereby support the multiple and nonoverlapping bands.
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公开(公告)号:US10424839B2
公开(公告)日:2019-09-24
申请号:US15752431
申请日:2016-08-25
Applicant: CommScope Technologies LLC
Inventor: Yuemin Li , Hangsheng Wen , Haifeng Li
Abstract: The present invention provides a phase shifter assembly for an array antenna, comprising: a first level phase shifter, wherein the first level phase shifter is configured to control the phases of a plurality of sub-arrays of the array antenna, where each sub-array comprises one or more radiating elements; a second level phase shifter, wherein the second level phase shifter is configured to proportionally change the phases of the radiating elements in the corresponding sub-arrays; and a power divider, wherein the power divider is connected between the first level phase shifter and the second level phase shifter. The phase shifter assembly has the advantages of both a distributed phase shifter network and a lumped phase shifter network. Specifically, the phase shifter assemblies can independently control the phases of the radiating elements in the array to obtain better sidelobe suppression. Further, phase control parts of the phase shifter are concentrated within a certain physical space range, so the size of the phase shifter assembly may be greatly decreased, and the cost may be greatly reduced, as compared with a conventional distributed phase shifter assembly design.
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