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公开(公告)号：US11296411B2
公开(公告)日：2022-04-05
申请号：US16537815
申请日：2019-08-12
Applicant: CommScope Technologies LLC
Inventor： Dushmantha N. P. Thalakotuna , Zhonghao Hu , Bevan Beresford Jones
Abstract: A feed network for a multi-beam antenna is provided, including a first beam port, a second beam port, a beam-forming network coupled to the beam ports, and a cancellation circuit. The cancellation circuit is coupled to the first beam port and the second beam port before the beam-forming network. The cancellation circuit extracts a portion of a RF signal on the first beam port, adds phase delay, and injects the extracted, delayed signal from the first beam port onto the second beam port, and extracts a portion of a RF signal on the second beam port, adds phase shift, and injects the extracted, delayed signal from the second beam port onto the first beam port. In one example of the invention, the cancellation circuit comprises a first directional coupler on a first beam input path, a transmission line, a second directional coupler on the second beam input path.
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公开(公告)号：US09711871B2
公开(公告)日：2017-07-18
申请号：US14479102
申请日：2014-09-05
Applicant: CommScope Technologies LLC
Inventor： Bevan Beresford Jones
Abstract: A high-band radiator of an ultra-wideband dual-band basestation antenna is disclosed. The high-band radiator comprises at least one dipole, a feed stalk, and a tubular body made of conductive material and having an annular flange. Each dipole comprises two dipole arms made of conductive material. The feed stalk feeds the dipole and comprises a non-conductive dielectric substrate body and conductors formed on the substrate body to function as a balun transformer. The feed stalk is connected with the dipole at one end and has at least one feed connector at the other, with the conductors coupled there-between. The tubular body is adapted for electrical connection through the annular flange to the ground plane at the open end; the body is short-circuited at the other end to define an internal cavity of the tubular body. At least a portion of the feed stalk is disposed within the tubular body.
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Patent Agency Ranking
公开(公告)号：US09859611B2
公开(公告)日：2018-01-02
申请号：US15040678
申请日：2016-02-10
Applicant: CommScope Technologies LLC
Inventor： Bevan Beresford Jones , James Kingsley Anthony Allan
Abstract: Ultra-wideband dual-band cellular dual-polarization base-station antennas and low-band radiators for such antennas are disclosed. The low-band radiator comprises a dipole and an extended dipole configured in a crossed arrangement, a capacitively coupled feed connecting the extended dipole to an antenna feed, and a pair of auxiliary radiating elements. The dipole comprises two dipole arms, each of approximately λ/4, for connection to the antenna feed. The extended dipole has anti-resonant dipole arms of approximately λ/2. The auxiliary radiating elements are configured in parallel at opposite ends of the extended dipole. The radiator is adapted for the frequency range of 698-960 MHz and provides a horizontal beamwidth of approximately 65 degrees. The dual-band base-station antenna comprises high-band radiators configured in at least one array and low-band radiators interspersed amongst the high-band radiators at regular intervals.
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公开(公告)号：USRE50073E1
公开(公告)日：2024-08-06
申请号：US17212346
申请日：2021-03-25
Applicant: CommScope Technologies LLC
Inventor： Chunhui Shang , Bevan Beresford Jones , Ozgur Isik
CPC classification number: H01Q5/321 , H01Q1/246 , H01Q1/52 , H01Q5/42 , H01Q9/16 , H01Q21/26 , H01Q21/30
Abstract: Low-band radiators of an ultra-wideband dual-band dual-polarization cellular basestation antenna and ultra-wideband dual-band dual-polarization cellular base-station antennas are provided. The dual bands comprise low and high bands. The low-band radiator comprises a dipole comprising two dipole arms adapted for the low band and for connection to an antenna feed. At least one dipole arm of the dipole comprises at least two dipole segments and at least one radiofrequency choke. The choke is disposed between the dipole segments. Each choke provides an open circuit or a high impedance separating adjacent dipole segments to minimize induced high band currents in the low-band radiator and consequent disturbance to the high band pattern. The choke is resonant at or near the frequencies of the high band.
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公开(公告)号：US10411350B2
公开(公告)日：2019-09-10
申请号：US14596939
申请日：2015-01-14
Applicant: CommScope Technologies LLC
Inventor： Dushmantha N. P. Thalakotuna , Zhonghao Hu , Bevan Beresford Jones
Abstract: A feed network for a multi-beam antenna is provided, including a first beam port, a second beam port, a beam-forming network coupled to the beam ports, and a cancellation circuit. The cancellation circuit is coupled to the first beam port and the second beam port before the beam-forming network. The cancellation circuit extracts a portion of a RF signal on the first beam port, adds phase delay, and injects the extracted, delayed signal from the first beam port onto the second beam port, and extracts a portion of a RF signal on the second beam port, adds phase shift, and injects the extracted, delayed signal from the second beam port onto the first beam port. In one example of the invention, the cancellation circuit comprises a first directional coupler on a first beam input path, a transmission line, a second directional coupler on the second beam input path.
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公开(公告)号：US20170110789A1
公开(公告)日：2017-04-20
申请号：US15393333
申请日：2016-12-29
Applicant: CommScope Technologies LLC
Inventor： Chunhui Shang , Bevan Beresford Jones , Ozgur lsik
CPC classification number: H01Q5/321 , H01Q1/246 , H01Q1/48 , H01Q1/52 , H01Q5/42 , H01Q9/0485 , H01Q9/16 , H01Q21/26 , H01Q21/30
Abstract: Low-band radiators of an ultra-wideband dual-band dual-polarization cellular basestation antenna and ultra-wideband dual-band dual-polarization cellular base-station antennas are provided. The dual bands comprise low and high bands. The low-band radiator comprises a dipole comprising two dipole arms adapted for the low band and for connection to an antenna feed. At least one dipole arm of the dipole comprises at least two dipole segments and at least one radiofrequency choke. The choke is disposed between the dipole segments. Each choke provides an open circuit or a high impedance separating adjacent dipole segments to minimize induced high band currents in the low-band radiator and consequent disturbance to the high band pattern. The choke is resonant at or near the frequencies of the high band.
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公开(公告)号：US09570804B2
公开(公告)日：2017-02-14
申请号：US14358763
申请日：2012-12-24
Applicant: CommScope Technologies LLC
Inventor： Chunhui Shang , Bevan Beresford Jones , Ozgur Isik
CPC classification number: H01Q5/321 , H01Q1/246 , H01Q1/48 , H01Q1/52 , H01Q5/42 , H01Q9/0485 , H01Q9/16 , H01Q21/26 , H01Q21/30
Abstract: Low-band radiators of an ultra-wideband dual-band dual-polarization cellular basestation antenna are provided. The dual bands include low and high bands. The low-band radiator includes a dipole with two dipole arms adapted for the low band and for connection to an antenna feed. At least one dipole arm of the dipole includes at least two dipole segments and at least one radio frequency choke. The choke is disposed between the dipole segments. Each choke provides an open circuit or a high impedance separating adjacent dipole segments to minimize induced high band currents in the low-band radiator and consequent disturbance to the high band pattern. The choke is resonant at or near the frequencies of the high band.
Abstract translation: 提供了超宽带双频双极化蜂窝基站天线的低频带辐射器。 双频带包括低频和高频带。 低频带辐射器包括一个偶极子，具有适用于低频带和连接到天线馈线的两个偶极臂。 偶极子的至少一个偶极臂包括至少两个偶极子段和至少一个射频扼流圈。 扼流圈设置在偶极子段之间。 每个扼流圈提供开路或隔离相邻偶极子段的高阻抗，以使低频带辐射器中的诱发高频带电流最小化并导致对高频带图案的干扰。 扼流圈在高频带的频率处或附近谐振。
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