Our journal paper published in IEEE AWPL, Aug. 2020
Fei-Peng Lai, Ji-Fong Yang, and Yen-Sheng Chen, “Compact dual-band circularly-polarized antenna using double cross dipoles for RFID handheld readers,” IEEE Antennas Wireless Propag. Lett., vol. 19, no. 8, pp. 1429–1433, Aug. 2020.