Patents by Inventor Mulin Liu
Mulin Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11424530Abstract: A communication antenna and radiation unit thereof with tapered clearance slots for transceiving radiation signals disposed at four corners of the radiation unit. The slots form groups and are arranged and fed by two feeding units. A middle portion of the radiation unit is a flat central platform. Peripheries of the radiation unit are turned up to form folded edges. The communication antenna includes a reflecting plate and a radiation unit operating at a low frequency. The central platform has a high-frequency radiation element. The radiation unit has a small aperture and is lightweight, so the antenna size is reduced, and a radiation performance indicator can be ensured. The radiation unit is applied to a multi-frequency antenna, has little effect on a high-frequency oscillator, and is especially suitable for a multi-frequency base station antenna with a low-frequency unit and a high-frequency unit forming an array in a nested manner.Type: GrantFiled: March 1, 2019Date of Patent: August 23, 2022Assignee: TONGYU COMMUNICATION INC.Inventors: Lei Shi, Cailong Yue, Tushuang Wei, Jin Yang, Wen Ding, Wei Zhao, Mulin Liu, Cong Fu
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Patent number: 11233335Abstract: An omnidirectional array antenna includes N omnidirectional subarray units circumferentially arranged to form a circular array, where each of the omnidirectional subarray units includes p coaxially-arrayed symmetrical oscillators, and N and p are both natural numbers. The omnidirectional array antenna beamforming method includes various omnidirectional subarray units stimulated by equiamplitude, in-phase or out-phase stimulation, thereby forming different types of transaction beams, such as an omnidirectional beam, a double-beam, a triple-beam, and a quadruple-beam.Type: GrantFiled: November 27, 2017Date of Patent: January 25, 2022Assignee: TONGYU COMMUNICATION INC.Inventors: Daotie Li, Zhonglin Wu, Mulin Liu
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Patent number: 11205836Abstract: An antenna array module includes at least two antenna units mounted on a surface of a feed network circuit board with two power division circuits, and a filter mounted on a surface of the feed network circuit board with two coupling circuits. Each power division circuit includes an input end and a plurality of output ends. One power division circuit feeds an antenna unit for ?45° polarization, and the other power division circuit feeds an antenna unit for +45° polarization. Each coupling circuit includes a radio frequency input end and an output end, and the output end of the coupling circuit is electrically connected to the input end of the power division circuit. The filter includes at least two output ends that are electrically connected to the radio frequency input end of the coupling circuit. A base station antenna includes a mounting structure and a connection structure.Type: GrantFiled: September 7, 2017Date of Patent: December 21, 2021Assignee: TONGYU COMMUNICATION INC.Inventors: Qingchen Chu, Mulin Liu, Zhonglin Wu, Wei Zhao, Wenlan Wang, Zhuofeng Gao, Lidong Zhang
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Publication number: 20210135347Abstract: A communication antenna and radiation unit thereof with tapered clearance slots for transceiving radiation signals disposed at four corners of the radiation unit. The slots form groups and are arranged and fed by two feeding units. A middle portion of the radiation unit is a flat central platform. Peripheries of the radiation unit are turned up to form folded edges. The communication antenna includes a reflecting plate and a radiation unit operating at a low frequency. The central platform has a high-frequency radiation element. The radiation unit has a small aperture and is lightweight, so the antenna size is reduced, and a radiation performance indicator can be ensured. The radiation unit is applied to a multi-frequency antenna, has little effect on a high-frequency oscillator, and is especially suitable for a multi-frequency base station antenna with a low-frequency unit and a high-frequency unit forming an array in a nested manner.Type: ApplicationFiled: March 1, 2019Publication date: May 6, 2021Applicant: TONGYU COMMUNICATION INC.Inventors: Lei SHI, Cailong YUE, Tushuang WEI, Jin YANG, Wen DING, Wei ZHAO, Mulin LIU, Cong FU
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Patent number: 10886634Abstract: A filter feeding network, including a dielectric substrate, where a surface of the dielectric substrate's one side is provided a microstrip line, and a surface of the dielectric substrate's other side is provided with a metal ground; the microstrip line includes first and second power division circuits, and first and second filter circuits; an input and output end of the first filter circuit are respectively connected to the first power division circuit's input and output end correspondingly, the second filter circuit's input and output end are respectively connected to the second power division circuit's input and output end correspondingly, and the input end of the first filter circuit and second filter circuit are in conduction with the metal ground; and first and second power division circuit's output end feeds at least two array antenna units for ?45° polarization and +45° polarization respectively.Type: GrantFiled: November 11, 2016Date of Patent: January 5, 2021Assignee: TONGYU COMMUNICATION INC.Inventors: Wei Zhao, Zhuofeng Gao, Xiangxi Yao, Wenlan Wang, Mulin Liu, Samb Doudou, Qingchen Chu, Bin Wang
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Patent number: 10854975Abstract: An antenna-unit (110) for at least dual-FDD bands includes a first combiner (100) splitting its input (101) into at least two outputs (102, 103). Each output (102, 103) operates in at least two narrow-bands from two different FDD systems, and is respectively connected to a second and third combiners (200, 300). The second and third combiners (200, 300) are respectively connected with a first RF circuit (800, 900) enabling separation of two different FDD channels in an inverted Transmitter/Receiver fashion. An antenna system (700) based on the antenna unit (110) includes a set of columns of dual-polarized radiating elements (500) arranged on a reflector (702), and the first RF circuit (800,900) is connected with a second RF circuit (10) of the Base Station processing, SDR is set along with the RF circuit (10) to enable 3D beamforming features as well as independent system link control for optimization purpose.Type: GrantFiled: August 9, 2016Date of Patent: December 1, 2020Assignee: TONGYU COMMUNICATION INC.Inventors: Samb Doudou, ZhongLin Wu, Mulin Liu
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Publication number: 20200313285Abstract: An antenna array module includes at least two antenna units mounted on a surface of a feed network circuit board with two power division circuits, and a filter mounted on a surface of the feed network circuit board with two coupling circuits. Each power division circuit includes an input end and a plurality of output ends. One power division circuit feeds an antenna unit for ?45° polarization, and the other power division circuit feeds an antenna unit for +45° polarization. Each coupling circuit includes a radio frequency input end and an output end, and the output end of the coupling circuit is electrically connected to the input end of the power division circuit. The filter includes at least two output ends that are electrically connected to the radio frequency input end of the coupling circuit. A base station antenna includes a mounting structure and a connection structure.Type: ApplicationFiled: September 7, 2017Publication date: October 1, 2020Applicant: TONGYU COMMUNICATION INC.Inventors: Qingchen CHU, Mulin LIU, Zhonglin WU, Wei ZHAO, Wenlan WANG, Zhuofeng GAO, Lidong ZHANG
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Publication number: 20200303831Abstract: An omnidirectional array antenna includes N omnidirectional subarray units circumferentially arranged to form a circular array, where each of the omnidirectional subarray units includes p coaxially-arrayed symmetrical oscillators, and N and p are both natural numbers. The omnidirectional array antenna beamforming method includes various omnidirectional subarray units stimulated by equiamplitude, in-phase or out-phase stimulation, thereby forming different types of transaction beams, such as an omnidirectional beam, a double-beam, a triple-beam, and a quadruple-beam.Type: ApplicationFiled: November 27, 2017Publication date: September 24, 2020Applicant: TONGYU COMMUNICATION INC.Inventors: Daotie LI, Zhonglin WU, Mulin LIU
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Patent number: 10629997Abstract: An integrated antenna unit where two dual-polarized radiating elements are connected on a PCB serving reflecting board as well as a filter lid of two-band pass filters. Each of two band-pass filter is connected directly to a two-way power splitter serving connection of same polarization from the two radiating elements. Two walls running parallel are extending at the band-pass filter edges to support the cavity of the filters and at same time serving as reflecting walls enabling to control the 3 dB azimuth beam generated by the radiating elements. Next, a multi-array antenna by collocating multiple arrays of the integrated antenna units.Type: GrantFiled: December 27, 2016Date of Patent: April 21, 2020Assignee: TONGYU COMMUNICATION INC.Inventors: Samb Doudou, ZhongLin Wu, Mulin Liu, Isola Ari
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Publication number: 20190207325Abstract: A filter feeding network, including a dielectric substrate, where a surface of the dielectric substrate's one side is provided a microstrip line, and a surface of the dielectric substrate's other side is provided with a metal ground; the microstrip line includes first and second power division circuits, and first and second filter circuits; an input and output end of the first filter circuit are respectively connected to the first power division circuit's input and output end correspondingly, the second filter circuit's input and output end are respectively connected to the second power division circuit's input and output end correspondingly, and the input end of the first filter circuit and second filter circuit are in conduction with the metal ground; and first and second power division circuit's output end feeds at least two array antenna units for ?45° polarization and +45° polarization respectively.Type: ApplicationFiled: November 11, 2016Publication date: July 4, 2019Applicant: TONGYU COMMUNICATION INC.Inventors: Wei ZHAO, Zhuofeng GAO, Xiangxi YAO, Wenlan WANG, Mulin LIU, Samb DOUDOU, Qingchen CHU, Bin WANG
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Publication number: 20190190152Abstract: An antenna-unit (110) for at least dual-FDD bands includes a first combiner (100) splitting its input (101) into at least two outputs (102, 103). Each output (102, 103) operates in at least two narrow-bands from two different FDD systems, and is respectively connected to a second and third combiners (200, 300). The second and third combiners (200, 300) are respectively connected with a first RF circuit (800, 900) enabling separation of two different FDD channels in an inverted Transmitter/Receiver fashion. An antenna system (700) based on the antenna unit (110) includes a set of columns of dual-polarized radiating elements (500) arranged on a reflector (702), and the first RF circuit (800,900) is connected with a second RF circuit (10) of the Base Station processing, SDR is set along with the RF circuit (10) to enable 3D beamforming features as well as independent system link control for optimization purpose.Type: ApplicationFiled: August 9, 2016Publication date: June 20, 2019Applicant: TONGYU COMMUNICATION INC.Inventors: Samb DOUDOU, ZhongLin WU, Mulin LIU
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Patent number: 10320076Abstract: An antenna transmission apparatus includes: a housing including an upper cover and a lower cover, and an input shaft and at least two sets of output shafts that are rotatably mounted between the upper cover and the lower cover; and further includes a planetary gear position selection assembly and a unidirectional control assembly. Each set of output shafts includes an output shaft and an auxiliary shaft in transmission fit with the output shaft; the planetary gear position selection assembly includes a planetary gear; the unidirectional control assembly can control the planetary gear to implement position selection and positioning; and the position selection and bidirectional rotation output of the output shafts may be implemented by using only one motor. The antenna transmission apparatus of the present invention is simple in structure, light in weight, stable, and easy to operate.Type: GrantFiled: June 18, 2016Date of Patent: June 11, 2019Assignee: TONGYU COMMUNICATION INC.Inventors: Tieyong Fang, Bin Wang, Gang Cheng, Mulin Liu, Zhuohong Huang, Lei Shi, Zeming Fang, Cailong Yue
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Publication number: 20190081407Abstract: An integrated antenna unit where two dual-polarized radiating elements are connected on a PCB serving reflecting board as well as a filter lid of two-band pass filters. Each of two band-pass filter is connected directly to a two-way power splitter serving connection of same polarization from the two radiating elements. Two walls running parallel are extending at the band-pass filter edges to support the cavity of the filters and at same time serving as reflecting walls enabling to control the 3 dB azimuth beam generated by the radiating elements. Next, a multi-array antenna by collocating multiple arrays of the integrated antenna units.Type: ApplicationFiled: December 27, 2016Publication date: March 14, 2019Applicant: Tongyu Communication Inc.Inventors: Samb DOUDOU, ZhongLin WU, Mulin LIU, Isola ARI
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Publication number: 20190027825Abstract: An antenna transmission apparatus includes: a housing including an upper cover and a lower cover, and an input shaft and at least two sets of output shafts that are rotatably mounted between the upper cover and the lower cover; and further includes a planetary gear position selection assembly and a unidirectional control assembly. Each set of output shafts includes an output shaft and an auxiliary shaft in transmission fit with the output shaft; the planetary gear position selection assembly includes a planetary gear; the unidirectional control assembly can control the planetary gear to implement position selection and positioning; and the position selection and bidirectional rotation output of the output shafts may be implemented by using only one motor. The antenna transmission apparatus of the present invention is simple in structure, light in weight, stable, and easy to operate.Type: ApplicationFiled: June 18, 2016Publication date: January 24, 2019Applicant: TONGYU COMMUNICATION INC.Inventors: Tieyong FANG, Bin WANG, Gang CHENG, Mulin LIU, Zhuohong HUANG, Lei SHI, Zeming FANG, Cailong YUE
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Patent number: 9385432Abstract: A wideband dual-polarized radiation element includes two pairs of cross polarized dipoles and baluns which correspondingly feed current to each dipole in a balanced manner. Each dipole includes a pair of unit arms aligned on a top end of the corresponding balun. One end of each unit arm is connected on top of the balun, and the other end of one unit arm is bending inwards to form inward loaded line, and the other unit arm is bending downwards to form downward loaded line. An antenna includes a metal reflector and at least one wideband dual polarized radiation element, which has excellent radiation and polarization performance.Type: GrantFiled: March 12, 2013Date of Patent: July 5, 2016Assignee: Tongyu Communication Inc.Inventors: Lei Shi, Tieyong Fang, Zhuofeng Gao, Mulin Liu, Hai'ou Ye
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Patent number: 9196969Abstract: A radiating element includes a supporting element and a plurality of radiating units formed at one end of the supporting element. Each of the radiating units has a lower surface facing towards the supporting element and an upper surface facing away from the supporting element. The radiating element further includes a first and second dividing pieces symmetrically disposed on each of the radiating units. The radiating element also includes a loading element formed on the lower surface of each of the plurality of radiating units, wherein the loading element extends outward from the supporting element and along an edge of the radiating unit. Moreover, the radiating element includes an electrical connecting element for connecting the radiating units to a feeding cable, the electrical connecting element being lower than the upper surfaces of the radiating units.Type: GrantFiled: March 13, 2012Date of Patent: November 24, 2015Assignee: TONGYU COMMUNICATION, INC.Inventors: Zhonglin Wu, Lei Shi, Gang Cheng, Mulin Liu, Zhuofeng Gao
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Publication number: 20120235873Abstract: A radiating element includes a supporting element and a plurality of radiating units formed at one end of the supporting element. Each of the radiating units has a lower surface facing towards the supporting element and an upper surface facing away from the supporting element. The radiating element further includes a first and second dividing pieces symmetrically disposed on each of the radiating units. The radiating element also includes a loading element formed on the lower surface of each of the plurality of radiating units, wherein the loading element extends outward from the supporting element and along an edge of the radiating unit. Moreover, the radiating element includes an electrical connecting element for connecting the radiating units to a feeding cable, the electrical connecting element being lower than the upper surfaces of the radiating units.Type: ApplicationFiled: March 13, 2012Publication date: September 20, 2012Inventors: Zhonglin Wu, Lei Shi, Gang Cheng, Mulin Liu, Zhuofeng Gao