电子器件2011，Vol.34Issue(2)：146-149,4.DOI:10.3969/j.issn.1005-9490.2011.02.007
顺序旋转馈电背腔圆极化天线阵列
Circularly Polarized Cavity Backed Slot Antenna with Sequential-Rotated Feeding
黄刚 1罗国清1
作者信息
- 1. 杭州电子科技大学射频电路与系统教育部重点实验室,杭州310018
- 折叠
摘要
Abstract
This paper describes a sequential-rotation array of circularly polarized slot antenna backed by dielectric filled metal cavity. The antenna element is a low profile cavity backed planar slot antenna fed by grounded eoplanar waveguide(GCPW). It has 170 MHz bandwidth,5.7 dBi maximum gain with its thickness less than λ0/50. The antenna array realizes circular polarization by adopting a sequential rotation technique with 2x2 antenna elements,which has impedance bandwidth of 470 MHz, front-to-back ratio of 14.2 dB, maximum cross polarized radiation level of -19.3 dB and 3dB( Axial Ratio:AR) bandwidth of 70 MHz. It has 7.7 dBi maximum gain,when operating at 10 GHz. The proposed antenna keeps good radiation performance and has advantages of low cost, light weight,easy fabrication and easy integration with planar circuit.关键词
顺序旋转馈电/背腔缝隙天线/圆极化Key words
sequential-rotated feeding/ cavity backed slot antenna/ circularly polarized分类
信息技术与安全科学引用本文复制引用
黄刚,罗国清..顺序旋转馈电背腔圆极化天线阵列[J].电子器件,2011,34(2):146-149,4.
