Slot-coupled Circularly Polarized Square Patch Antenna for Electronic Toll Collection System
(0) A right-hand circularly polarized (RHCP) square patch microstrip antenna for the On Board Unit (OBU) of Electronic Toll Collection (ETC) system is designed,according to the national standard of GB/T 20851.1-2007. Wide bandwidth is achieved by choosing two suitable coupling slotsInthe ground plane of the stripline structure. The simulated return loss,radiation patterns,and the influence of via holesInthe substrate are presented. The measured results show that a wide 2:1 VSWR bandwidth of 1.2GHz (or about 21％ with center frequency at 5.8GHz) is obtained,and a RHCP gain of 6.6dB is reached.
RHCP ETC broadband via holes
Shunbo Zhang Yuan Zhuang Shouzheng Zhu
Dept of EE.,East China Normal University 500 Dongcuan Rd.,Shanghai 200241 China
国际会议
2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)
南京
英文
1210-1213
2008-04-21（万方平台首次上网日期，不代表论文的发表时间）