电波科学学报2024，Vol.39Issue(6)：1058-1066,9.DOI:10.12265/j.cjors.2023353
一种小型化5G双频段四分之一模基片集成波导天线
A miniaturized 5G dual band quarter mode substrate integrated waveguide antenna
摘要
Abstract
In recent years,China has introduced the N78 and N79 frequency bands in 5G Sub-6 GHz applications,making 5G dual band antennas that can cover these two frequency bands quickly become a current research hotspot.However,there are few papers proposed that can balance small size and N78 and N79 dual band broadband coverage.Based on this background,this paper proposes a design with small plane size for terminal applications.A new method of low-profile quarter mode substrate integrated waveguide(QMSIW)dual frequency antenna.This antenna is based on the substrate integrated waveguide(SIW)technology.First,a quarter mode substrate integrated waveguide antenna with the advantage of miniaturization is constructed.Its first two modes(TE101 mode and TE301 mode)are used to form two bands,and then parasitic patches are introduced through magnetic coupling.The first two modes of parasitic patches(TE101 mode and TE301 mode)are used to expand the bandwidth of the two bands.The simulation results show that the three-dimensional size of this antenna is 21 mm×25 mm×1.6 mm(0.25λ0×0.3λ0×0.019λ0)(λ0 is the wavelength in the air at the center frequency)the dual band coverage of N78(3.4-3.6 GHz)and N79(4.8-5 GHz)is ultimately achieved.The physical test results show that this antenna can obtain-6 dB impedance bandwidth located in the N78 frequency band 5.8%(3.35-3.55 GHz)and N79 frequency band 5%(4.69-4.93 GHz),respectively.The average efficiency in the low and high frequency bands is-1.6 dB and-1.8 dB,respectively.关键词
5G/低面/基片集成波导(SIW)/双频段/磁耦合/寄生贴片Key words
5G/low profile/substrate integrated waveguide(SIW)/dual-band/magnetic coupling/parasitic antennas分类
信息技术与安全科学引用本文复制引用
刘越,杨汶汶,陈建新..一种小型化5G双频段四分之一模基片集成波导天线[J].电波科学学报,2024,39(6):1058-1066,9.基金项目
国家自然科学基金(62071256) （62071256）
