Dual-band Circularly Polarized CPW-fed Circular Slot Antenna with Two Opened-ground Rings for GPS and WLAN Applications
This paper presents a novel dual-band circularly polarized CPW-fed circular slot antenna with two open-ground rings.The proposed antenna is constructed with two opened-ground rings facing in opposite directions and embedded in the circular slot and the enhanced feed strip of CPW.By way of adjusting the relevant parameters,we can obtain the dualband at 1.57 GHz and 2.46 GHz individually.A smaller frequency ratio of 1.56 is presented.The measured 10 dB return loss impedance bandwidth are 380MHz(24.68%)for 1.57 GHz band and 210MHz(8.33%)for 2.46 GHz band.The measured 3 dB axial ratio bandwidth for 1.57 GHz and 2.46 GHz bands are 1338%and 8.%,the polarization of radiation patterns are RHCP and LHCP for each band and the antenna gain are 3.72 and 3.21 dBic respectively.
Sheau-Shong Bor Chia-Yen Wei Tian-Fu Hung Ji-Chyun Liu Hai-Tao Sun
Department of Electrical Engineering,Feng-Chia University,Taichung,Taiwan,R.O.C. Program in Electrical and Communications Engineering,Feng-Chia University,Taichung,Taiwan,R.O.C. Department of Electrical Engineering,Ching Yun University,Chung-Li,Tao-yuan,Taiwan,R.O.C.
国际会议
Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)
苏州
英文
831-834
2011-09-01（万方平台首次上网日期，不代表论文的发表时间）