Zhibin He,
Sailing He,
Hui Liu,
Yoichi Okuno,
and
Bingjie Wang,
"A Wideband Circularly Polarized Antenna with Wilkinson Feed Network for Worldwide UHF Band RFID Reader," Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9,Page(s)2186-2189