Dual-Band Circularly Polarized Cavity-Backed Annular Slot Antenna for GPS Receiver

A circularly polarized (CP) cavity-backed annular slot antenna for GPS receiver is designed to operate in both the L1 and L2 bands of the Global Positioning System (GPS). The measured impedance bandwidths with VSWR less than 2 are 3.7% (1.19-1.235 GHz) and 1.2% (1.565-1.585 GHz), respectively, the measured 3 dB axial-ratio (AR) bandwidth are 0.9% (1.220-1.231 GHz) and 0.6% (1.572-1.581 GHz), respectively. A cavity is designed to render a unidirectional radiation pattern.

[1]  J. Row,et al.  The design of a squarer-ring slot antenna for circular polarization , 2005, IEEE Transactions on Antennas and Propagation.

[2]  Xianming Qing,et al.  Dual-Band Circularly Polarized $S$-Shaped Slotted Patch Antenna With a Small Frequency-Ratio , 2010, IEEE Transactions on Antennas and Propagation.

[3]  Yufeng Wang,et al.  A dual-band circularly polarized stacked microstrip antenna with single-fed for GPS applications , 2008, 2008 8th International Symposium on Antennas, Propagation and EM Theory.

[4]  K. Tong,et al.  Circularly Polarized U-Slot Antenna , 2007, IEEE Transactions on Antennas and Propagation.

[5]  Kin‐Lu Wong,et al.  Dual-band circularly-polarized square microstrip antenna , 2001 .

[6]  Hua-Ming Chen,et al.  Microstrip-Fed Circularly Polarized Square-Ring Patch Antenna for GPS Applications , 2009, IEEE Transactions on Antennas and Propagation.

[7]  K. Mak,et al.  A Circularly Polarized Antenna With Wide Axial Ratio Beamwidth , 2009, IEEE Transactions on Antennas and Propagation.

[8]  Can-Hui Chen,et al.  Dual-Band Circularly-Polarized CPW-Fed Slot Antenna With a Small Frequency Ratio and Wide Bandwidths , 2011, IEEE Transactions on Antennas and Propagation.

[9]  Jeen-Sheen Row,et al.  Circularly-Polarized Wide Slot Antenna Loaded With a Parasitic Patch , 2008, IEEE Transactions on Antennas and Propagation.

[10]  S. Duffy,et al.  A dual-band circularly polarized aperture-coupled stacked microstrip antenna for global positioning satellite , 1997 .

[11]  J. Wight,et al.  An aperture-coupled circularly polarized stacked microstrip antenna for GPS frequency bands L1, L2, and L5 , 2008, 2008 IEEE Antennas and Propagation Society International Symposium.

[12]  Yi-Cheng Lin,et al.  Novel Broadband Circularly Polarized Cavity-Backed Aperture Antenna With Traveling Wave Excitation , 2010, IEEE Transactions on Antennas and Propagation.

[13]  H. Yang,et al.  Surface waves of printed antennas on planar artificial periodic dielectric structures , 2001 .

[14]  E. Yung,et al.  Dual-Band Dual-Sense Circularly-Polarized CPW-Fed Slot Antenna With Two Spiral Slots Loaded , 2009, IEEE Transactions on Antennas and Propagation.

[15]  Yong-Xin Guo,et al.  Broadband Circularly Polarized Annular-Ring Microstrip Antenna , 2009, IEEE Transactions on Antennas and Propagation.