论文信息 - Compact circularly polarized microstrip antenna for RFID handheld reader applications

Compact circularly polarized microstrip antenna for RFID handheld reader applications

A compact circularly polarized microstrip antenna (CPMA) with slits is proposed for radio frequency identification (RFID) handheld reader applications. The slits are cut onto the square patch radiator diagonally to reduce antenna size with circular polarization (CP) operation. A measured 3-dB axial-ratio (AR) bandwidth of around 4.0 MHz with 19.0 MHz impedance bandwidth at centre frequency of 920 MHz is achieved. The overall antenna size is 0.276λo × 0.276λo × 0.014λo. The proposed antenna can be a good candidate for RFID portable or handheld reader applications.

Xianming Qing | Nasimuddin | Zhi Ning Chen

[1] J. Row,et al. Compact design of single-feed circularly polarised microstrip antenna , 2004 .

[2] Xianming Qing,et al. A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID Applications , 2007 .

[3] Hua-Ming Chen,et al. On the circular polarization operation of annular-ring microstrip antennas , 1999 .

[4] Xianming Qing,et al. A Universal UHF RFID Reader Antenna , 2009, IEEE Transactions on Microwave Theory and Techniques.

[5] Wen‐Shyang Chen,et al. Novel compact circularly polarized square microstrip antenna , 2001 .

[6] Xianming Qing,et al. Broadband circularly polarized stacked patch antenna for UHF RFID applications , 2007, 2007 IEEE Antennas and Propagation Society International Symposium.