面向5G应用的双频段1/4模基片集成波导天线  

Dual-band quarter-mode substrate integrated waveguide antenna for 5G applications

作　　者：邱鑫 杨汶汶[1] 陈建新[1] 李业 QIU Xin;YANG Wenwen;CHEN Jianxin;LI Ye(School of Information Science and Technology,Nantong University,Nantong 226019,P.R.China)

机构地区：[1]南通大学信息科学技术学院,江苏南通226019

出　　处：《重庆邮电大学学报（自然科学版）》2024年第6期1079-1088,共10页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：国家自然科学基金项目(620712156);毫米波国家重点实验室开放课题(K202112)。

摘　　要：为以小尺寸实现5G热点频带的双频双宽带覆盖,提出了一种小平面尺寸、低剖面的5G双频段覆盖天线。基于基片集成波导(substrate integrated waveguide,SIW)技术构建了具有小型化优势的1/4模基片集成波导(quarter-mode substrate integrated waveguide,QMSIW)天线,可以在2个目标频段附近产生4种模式(TM_(22)、TM_(33)、TM_(44)、TM_(55)),通过调谐金属通孔,可以调控模式频率使每个目标频段内有2种工作模式;引入扁U形金属枝节加载结构,可在N79(4.4~5.0 GHz)频段内增加一种新的模式(金属枝节的全波长模式),从而进一步拓展该频段的阻抗带宽。仿真结果表明,天线在3维尺寸35 mm×35 mm×2 mm条件下实现了N78(3.4~3.6 GHz)和N79的双频段覆盖。In order to achieve dual-broadband coverage in 5G hotspot bands in a small size,a 5G dual-band coverage antenna with small-plane size and low profile was proposed.Based on the substrate integrated waveguide(SIW)technology,a quarter-mode substrate integrated waveguide antenna with the advantage of miniaturization is constructed,which can generate four modes(TM_(22),TM_(33),TM_(44),TM_(55))near two target frequency bands.The mode frequency can be adjusted so that there are 2 working modes in each target band.The introduction of a flat U-shaped metal segment loading structure can add a new mode(all-wavelength mode of metal branches)in the N79 band,thereby further extending the impedance bandwidth of this band.Simulation results show that the antenna achieves dual-band coverage of N78(3.4~3.6 GHz)and N79(4.4~5.0 GHz)under the conditions of 35 mm×35 mm×2 mm.

关 键 词：5G 小尺寸 宽带 双频段 1/4模基片集成波导 

分 类 号：TN828.4[电子电信—信息与通信工程]