A simple design for slotted patch antennas with broadband circular polarization

A simple design for circularly polarized (CP) patch antennas with broadband operation is presented. The design is based on a cross slot antenna with an ellipse-shaped ground plane. A design guideline for the CP antenna is given. Three samples are performed by the guideline, and their antenna prototypes are fabricated and tested. Measured results show that the 3dB-axial-ratio bandwidths of the three prototypes, centered at 0.9, 1.4, 2 Hz, are 26, 37, and 33%, respectively. In addition, the performances of the slotted patch antenna backed with a reflector are also addressed. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1854–1857, 2015

[1]  Chien-Jen Wang,et al.  CPW-Fed Stair-Shaped Slot Antennas With Circular Polarization , 2009, IEEE Transactions on Antennas and Propagation.

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

[3]  Jia-Yi Sze,et al.  Axial-Ratio-Bandwidth Enhancement of a Microstrip-Line-Fed Circularly Polarized Annular-Ring Slot Antenna , 2011, IEEE Transactions on Antennas and Propagation.

[4]  P. Mousavi,et al.  Wideband L-Shaped Circular Polarized Monopole Slot Antenna , 2010, IEEE Antennas and Wireless Propagation Letters.

[5]  J Nourinia,et al.  Broadband CPW-Fed Circularly Polarized Square Slot Antenna With Three Inverted-L-Shape Grounded Strips , 2011, IEEE Antennas and Wireless Propagation Letters.

[6]  Jyun-Ming Lin,et al.  Wideband circularly polarised antenna on slot-loaded ground plane , 2012 .

[7]  Kai-Fong Lee,et al.  Wideband Circularly Polarized Antenna With L-Shaped Slot , 2008, IEEE Transactions on Antennas and Propagation.

[8]  Huiqing Zhai,et al.  CPW-Fed S-Shaped Slot Antenna for Broadband Circular Polarization , 2013, IEEE Antennas and Wireless Propagation Letters.

[9]  Jia-Yi Sze,et al.  Circularly Polarized Square Slot Antenna With a Largely Enhanced Axial-Ratio Bandwidth , 2012, IEEE Antennas and Wireless Propagation Letters.