Low-profile broadband circularly polarized antenna for 5G communication and design method thereof
A circularly polarized antenna, low profile technology, applied in the field of microwave passive devices, can solve the problems of narrow bandwidth of artificial magnetic conductors, high antenna profile, large space volume, etc., to improve impedance bandwidth and axial ratio bandwidth, and reduce height. , the effect of saving space resources
Active Publication Date: 2020-10-30
ANHUI UNIVERSITY
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Problems solved by technology
[0012] The purpose of the present invention is to solve the problem that the distance between the reflector of the base station antenna and the antenna adopts a quarter wavelength corresponding to the resonant frequency point in the prior art, the antenna section is high, the space volume is large, and the bandwidth of the artificial magnetic conductor loaded is relatively small. narrow question
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Embodiment 1
[0065] Such as figure 1 and figure 2 As shown, the low-profile broadband circularly polarized antenna for 5G communication includes an upper microwave dielectric substrate 601, a lower microwave dielectric substrate 701, a first irregularly slotted rectangular patch antenna 101, and a second irregularly slotted rectangular patch Antenna 102, coaxial line 501, metal conductor ground plane 801; the upper surface of the lower microwave dielectric substrate 701 is periodically printed with a plurality of AMC reflectors 401, and a plurality of AMC reflectors 401 are distributed at equal intervals in the lower microwave On the upper surface of the dielectric substrate 701, the number of cycles in this embodiment is 7*6, and the lower surface of the lower microwave dielectric substrate 701 is covered with a copper layer to form a metal conductor ground plane 801; the first irregular slotted rectangular patch The antenna 101 is a copper coating formed by etching the upper surface of...
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The invention provides a low-profile broadband circularly polarized antenna for 5G communication and a design method thereof and belong to the technical field of microwave passive devices and the antenna comprise an antenna radiation assembly, a reflector assembly and an antenna feed assembly. The antenna radiation assembly is used for signal radiation, and the reflector assembly is used for reflecting radiation signals of the antenna radiation assembly. The antenna radiation assembly comprises an upper layer microwave dielectric substrate and first and second irregular slotted rectangular patch antennas etched on the upper and lower surfaces of the upper layer microwave dielectric substrate. The reflector assembly comprises a lower layer microwave dielectric substrate and a plurality of AMC reflectors distributed on the upper surface of the lower layer microwave dielectric substrate at equal intervals. The AMC reflectors are loaded below the first irregular slotted rectangular patch antenna and the second irregular slotted rectangular patch antenna; and the antenna feed assembly provides feed for the first irregular slotted rectangular patch antenna and the second irregular slotted rectangular patch antenna. L-shaped grooves are respectively etched in the first irregular slotted rectangular patch antenna and the second irregular slotted rectangular patch antenna; and the antenna is low in profile and small in size, contains 5G, is compatible with a 4G frequency band, and is wide in bandwidth after being loaded with an artificial magnetic conductor.
Description
technical field [0001] The invention relates to the technical field of microwave passive devices, in particular to a low-profile broadband circularly polarized antenna for 5G communication and a design method thereof. Background technique [0002] An antenna is a device used to transmit or receive electromagnetic waves in a radio communication system. With the rapid development of communication and informatization, wireless communication has become an integral part of modern society. Satellite navigation, mobile communication, radar technology, electronic countermeasures, etc. all use electromagnetic waves to transmit information, and must rely on antennas to work, and their excellent performance plays an important role in the success or failure of wireless communication projects. [0003] In modern radio communication equipment, linearly polarized antennas have long been unable to meet the requirements of communication applications. Therefore, people began to pay more and...
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IPC IPC(8): H01Q1/38H01Q1/50H01Q19/185H01Q15/24
CPCH01Q1/38H01Q1/50H01Q19/185H01Q15/24
Inventor 朱浩然胡祥奎吴先良
Owner ANHUI UNIVERSITY
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