Wideband Circularly Polarized E-Shaped Patch Antenna for Wireless Applications [Wireless Corner]
- 1 October 2010
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Antennas and Propagation Magazine
- Vol. 52 (5), 219-229
- https://doi.org/10.1109/map.2010.5687547
Abstract
A new technique to achieve a circularly polarized probe-fed single-layer microstrip-patch antenna with a wideband axial ratio is proposed. The antenna is a modified form of the conventional E-shaped patch, used to broaden the impedance bandwidth of a basic patch antenna. By letting the two parallel slots of the E patch be unequal, asymmetry is introduced. This leads to two orthogonal currents on the patch and, hence, circularly polarized fields are excited. The proposed technique exhibits the advantage of the simplicity of the E-shaped patch design, which requires only the slot lengths, widths, and position parameters to be determined. Investigations of the effect of various dimensions of the antenna have been carried out via parametric analysis. Based on these investigations, a design procedure for a circularly polarized E-shaped patch was developed. A prototype has been designed, following the suggested procedure for the IEEE 802.11big WLAN band. The performance of the fabricated antenna was measured and compared with simulation results. Various examples with different substrate thicknesses and material types are presented and compared with the recently proposed circularly polarized U-slot patch antennas.Keywords
This publication has 8 references indexed in Scilit:
- DESIGN AND STUDY OF WIDEBAND SINGLE FEED CIRCULARLY POLARIZED MICROSTRIP ANTENNASProgress In Electromagnetics Research, 2008
- Circularly Polarized U-Slot AntennaIEEE Transactions on Antennas and Propagation, 2007
- Experimental study of the rectangular patch with a U-shaped slotPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Wide-band E-shaped patch antennas for wireless communicationsIEEE Transactions on Antennas and Propagation, 2001
- L-Shaped probe-feed circularly polarized microstrip patch antenna with a cross slotMicrowave and Optical Technology Letters, 2000
- L-Shaped probe-feed circularly polarized microstrip patch antenna with a cross slotMicrowave and Optical Technology Letters, 2000
- Broadband microstrip patch antennaElectronics Letters, 1998
- Single-layer single-patch wideband microstrip antennaElectronics Letters, 1995