Planar broadband annular-ring antenna with circular polarization for RFID system
Asymmetric-Circular Shaped Slotted Microstrip Antennas for Circular Polarization and RFID Applications
A Dual-Band Circularly Polarized Aperture-Coupled Stacked Microstrip Antenna for Global Positioning Satellite
A circularly polarized short backfire antenna excited by an unbalance-fed cross aperture
Single-Fed Broadband Circularly Polarized Stacked Patch Antenna With Horizontally Meandered Strip for Universal UHF RFID Applications
Wideband Circularly Polarized Patch Antenna Using Broadband Baluns