UHF RFID Reader Antenna With a Wide Beamwidth and High Return Loss

作者：Son Hae Won^*; Park Hyuk; Lee Kyong Hee; Jin Gwang Ja; Oh Moon Kyun

来源：IEEE Transactions on Antennas and Propagation, 2012, 60(10): 4928-4932.

DOI：10.1109/TAP.2012.2207349

• Circular polarization
• high return loss
• radio frequency identification (RFID)
• wide beamwidth

A compact circularly polarized antenna with a wide beamwidth and high return loss (RL) is presented. The antenna consists of four U-shaped metal strips sequentially rotated and fed with a 90 degrees phase difference feed network located beneath the ground plane. The antenna is designed to operate at around 915 MHz for UHF radio frequency identification applications, and the experimental results show that it has a wide beamwidth of over 114 and high RL of over 34 dB in the 902-928 MHz range.

• 出版日期2012-10