电波科学学报2017，Vol.32Issue(4)：427-433,7.DOI:10.13443/j.cjors.2017062001
一种基于容性加载的小型化准八木天线研究
A novel miniaturization quasi Yagi-Uda antenna based on capacitive loading technique
摘要
Abstract
This paper presents a novel miniaturization quasi Yagi-Uda antenna compared with conventional antenna.The longitudinal dimension is decreased by rational layout of the feeding structure and related circuit,while its transverse dimension could be reduced by the capacitive loading technique applied on the reflector and driven dipole,which could be equivalent to extend their current flowing length.After the optimization with the software HFSS,the proposed antenna is fabricated.Its measurement results are agree with the simulation well.Its gain is around 6.8dBi,its cross polarization ratio is above 40dB at the main lobe,and the VSWR is less than 1.4 over the frequency range of American standard RFID from 902MHz to 928MHz.The size of the substrate is only 110 mm×105 mm,which is about one-third of the wavelength of center frequency in free space.关键词
准八木天线/容性加载/小型化天线/射频识别/增益Key words
quasi Yagi-Uda antenna/capacitive loading/miniaturization antenna/radio frequency identification/gain分类
信息技术与安全科学引用本文复制引用
汤炜,袁良昊,孙铃武..一种基于容性加载的小型化准八木天线研究[J].电波科学学报,2017,32(4):427-433,7.基金项目
福建省自然科学基金(2015J05127) （2015J05127）
华侨大学科研基金(14BS206) （14BS206）
华侨大学研究生科研创新能力培育计划(2015301032) （2015301032）
