-
公开(公告)号：US20230117966A1
公开(公告)日：2023-04-20
申请号：US17523935
申请日：2021-11-11
Applicant: South China University of Technology
Inventor： Yuanchun LI , Disi WU , Quan XUE
Abstract: A dual-band filtering switch based on a single quad-mode dielectric resonator (DR) includes: a first printed circuit board (PCB) provided thereon with an input terminal; a second PCB provided thereon with an output terminal; a shielding shell arranged between the first and second PCBs and enclosing a shielding cavity together with the first and second PCBs; and a single quad-mode DR arranged in the shielding cavity. The first and second PCBs each include a feeding layer, a dielectric layer, and a ground layer that are stacked in sequence. The feeding layers of the first and second PCBs each include a microstrip line and a switching circuitry connected to the microstrip line, and the feeding layer is in contact with a surface of the DR to realize a switching function of the filtering switch. The proposed filtering switch feature low loss transmission and high selectivity with dual-band operation, miniaturization with the fewest resonators and friendly-integration, simultaneously.
-
公开(公告)号：US20230039854A1
公开(公告)日：2023-02-09
申请号：US17557086
申请日：2021-12-21
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Yunfei CAO , Xiuyin ZHANG , Quan XUE
Abstract: The invention discloses shared-aperture dual-band dual-polarized antenna array and communication equipment. The antenna array comprises a first dielectric substrate, a second dielectric substrate, a third dielectric substrate, a fourth dielectric substrate, and a fifth dielectric substrate. The first dielectric substrate, the second dielectric substrate, and the third dielectric substrate constitute a dielectric substrate group. The dielectric substrate group is provided with a low-frequency antenna element and four high-frequency antenna elements. The low-frequency antenna element is loaded with a filtering structure. The low-frequency antenna element and the high-frequency antenna element are fed by coaxial lines. The fourth dielectric substrate and the fifth dielectric substrate form a dual-function metasurface. When the dual-function metasurface is used as an artificial magnetic conductor reflector, the radiation of the low-frequency antenna element is enhanced in a low profile, and when used as a frequency selective surface, the electromagnetic scattering of the low-frequency antenna element in the high-frequency band is suppressed. Compared with the existing solutions, the present invention is more compact, and maintains high cross-band isolation and stable radiation patterns in dual bands.
-
公开(公告)号：US20210119578A1
公开(公告)日：2021-04-22
申请号：US17138916
申请日：2020-12-31
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Chao LI , Quan XUE , Liang WU , Shaowei LIAO
IPC: H03B5/12
Abstract: A quadrature voltage-controlled oscillator circuit with phase shift includes two voltage-controlled oscillators with the same structure, wherein the two voltage-controlled oscillators are connected to each other through input and output ports, and the two voltage-controlled oscillators respectively include a cross-coupled oscillating circuit, an injection locking circuit, a resonant circuit and a voltage-controlled current source circuit which are electrically connected to each other; and signals are injected through the injection locking circuit and coupled with the oscillating circuit, so as to output a quadrature signal. An oscillator is enabled to operate stably in one mode by means of a simple circuit structure, and a good phase shift can be provided for the resonant circuit in a lower frequency band; and meanwhile, a tuning range of the oscillator is improved without increasing phase noise.
-
公开(公告)号：US20220239015A1
公开(公告)日：2022-07-28
申请号：US17569503
申请日：2022-01-06
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Quan XUE , Wenquan CHE , Siyu LI , Shaowei LIAO
Abstract: A low-profile circularly polarized isoflux antenna module is provided, which relates to the field of microelectronic antennas, and provides a solution to solve the contradiction between size and gain in conventional technology. The antenna module includes an antenna array, a substrate, a connection plate, and a feeding plate that are stacked in sequence. The feeding network on the feeding plate is electrically connected to the antenna array through probe passing through the connection plate and the substrate. The antenna array includes two or more concentrically distributed antenna elements, and each antenna element forms mutually independent concentric circularly polarized apertures through feed control. The structure is simple to assemble and easy to process, light in weight, small in size, and low in profile.
-
公开(公告)号：US20240291136A1
公开(公告)日：2024-08-29
申请号：US18658201
申请日：2024-05-08
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Haoshen ZHU , Zhirui CHEN , Wenjie FENG , Quan XUE
CPC classification number: H01Q1/2283 , H01L23/5385 , H01L24/16 , H01L25/105 , H01Q1/02 , H01L2224/16145 , H01L2224/16227 , H04B1/40
Abstract: The present invention provides a three-dimensional heterogeneous integrated millimeter-wave system package structure, which is composed of an upper antenna board and a lower chip carrier board. The upper antenna board has an integrated structure with an antenna in package and a feed network arranged inside, the lower chip carrier board has a modular structure provided with a first chipset and a second chipset which are heterogeneous integrated, and each chipset comprises a plurality of chips of the same or different processes.
-
Patent Agency Ranking
公开(公告)号：US20250047323A1
公开(公告)日：2025-02-06
申请号：US18713696
申请日：2022-03-28
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Quan XUE , Yue LI , Wenquan CHE , Shaowei LIAO
Abstract: Disclosed is a wired cooperative multiple input multiple output (CMIMO) signal transmission method based on a multimode transmission line. The method includes the following step: selecting a type of the multimode transmission line; constructing a wired CMIMO transmission system based on the multimode transmission line; performing channel measurement to obtain a transmission coefficient matrix; judging whether the transmission coefficient matrix satisfies a full rank and reversibility and has a condition number satisfying conditions; optimizing a structure of the multimode transmission line, a multiport excitation structure, and a multiport receiving structure to obtain the transmission coefficient matrix which satisfies a full rank and reversibility and has a condition number satisfying conditions; making the transmission coefficient matrix be equivalent to a channel matrix of the wired CMIMO transmission system; and completing signal excitation, transmission and reception of the wired CMIMO transmission system based on the multimode transmission line.
-
公开(公告)号：US20240405439A1
公开(公告)日：2024-12-05
申请号：US18572505
申请日：2020-10-29
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Wenquan CHE , Wanchen YANG , Lizheng GU , Quan XUE
Abstract: A metasurface-based dual-band polarized two-beam base station antenna includes a radiation metasurface antenna layer, a metal floor etched with a plurality of crossed slots, and a four-port feed network layer; the radiation metasurface antenna layer is positioned on an uppermost layer, the four-port feed network layer is positioned on a lowermost layer, the metal floor is arranged between the radiation metasurface antenna layer and the four-port feed network layer, and the plurality of crossed slots are etched on the metal floor to achieve a dual-band polarized radiation characteristic; and the plurality of crossed slots are sequentially excited, and energy of the four-port feed network layer is coupled to the radiation metasurface antenna layer via the crossed slots, so as to realize dual-band polarized beams.
-
公开(公告)号：US20230140891A1
公开(公告)日：2023-05-11
申请号：US17790136
申请日：2020-10-30
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Quan XUE , Haidong CHEN , Sen LIN , Wenquan CHE
IPC: A61B18/18
CPC classification number: A61B18/1815 , A61B2018/00083 , A61B2018/1869 , A61B2018/1876
Abstract: A microwave ablation antenna based on a spiral slot, including a conical ablation needle head and a semi-rigid coaxial needle rod. A front end of the semi-rigid coaxial needle rod is interconnected with a tail end of the ablation needle head. An outer conductor behind a connection is provided with a plurality of optimizable spiral slots for radiation, and a plurality of annular slots are not formed or formed behind the spiral slots for impedance matching and radiation. Energy is transmitted along a semi-rigid co-axis and is efficiently radiated at the slots.
-
公开(公告)号：US20220209411A1
公开(公告)日：2022-06-30
申请号：US17243607
申请日：2021-04-29
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Wenquan CHE , Wanchen YANG , Lizheng GU , Quan XUE , Shaowei LIAO
Abstract: A coupling-offset path branch and a high-isolation millimeter-wave phased array antenna based on the same. The high-isolation millimeter-wave phased array antenna includes a plurality of radiating stacked microstrip patch elements, a shielding metal wall, several coupling-offset path branches, a metal ground plane, a feeding network layer, several ports, wherein the first port is excited, energy of the feeding network layer is coupled to a corresponding radiating stacked microstrip patch element through an I-shaped slot, and the energy is transmitted to the second port adjacent to the first port through an inherent coupling path portion; the coupling-offset path branch is introduced to offset the inherent coupling, thus achieving a high-isolation performance between the first port and the second port. By adopting the simple decoupling branch, the invention can achieve a high-isolation effect in a wide band, improve an active standing-wave ratio and a scanning capability of the array antenna.
-
公开(公告)号：US20210057823A1
公开(公告)日：2021-02-25
申请号：US16996016
申请日：2020-08-18
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Xiuyin ZHANG , Shengjie YANG , Yihui YAO , Yunfei CAO , Quan XUE
Abstract: A millimeter wave filtering antenna and a wireless communication device are disclosed. The millimeter wave filtering antenna includes a parasitic unit, a feeding unit and a feeding network. The parasitic unit includes at least one quadrilateral parasitic patch and at least one cross shaped parasitic patch, both of which are nested and combined with each other. The feeding unit includes a feeding patch, and the feeding patch is loaded with a short-circuit patch to form coupling. The feeding network feeds the feeding unit. The wireless communication device includes a millimeter wave filtering antenna according to the present disclosure. The radiation performance of the antenna can not only realize the filtering characteristics with high roll-off and high isolation, but also ensure that no additional insertion loss is introduced.
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.031 seconds)
