Dual-Feed Dual-Polarized Patch Antenna With Low Cross Polarization and High Isolation
- 7 August 2009
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 57 (10), 3405-3409
- https://doi.org/10.1109/tap.2009.2029375
Abstract
In this communication, a dual-feed dual-polarized microstrip antenna with low cross polarization and high isolation is experimentally studied. Two different feed mechanisms are designed to excite a dual orthogonal linearly polarized mode from a single radiating patch. One of the two modes is excited by an aperture-coupled feed, which comprises a compact resonant annular-ring slot and a T-shaped microstrip feedline; while the other is excited by a pair of meandering strips with a 180$^{\circ}$ phase differences. Both linearly polarized modes are designed to operate at 2400-MHz frequency band, and from the measured results, it is found that the isolation between the two feeding ports is less than 40 dB across a 10-dB input-impedance bandwidth of 14%. In addition, low cross polarization is observed from the radiation patterns of the two modes, especially at the broadside direction. Simulation analyses are also carried out to support the measured results.This publication has 10 references indexed in Scilit:
- Dual Polarized Patch Antenna Fed by Meandering ProbesIEEE Transactions on Antennas and Propagation, 2007
- Broadband patch antenna with low cross-polarisationElectronics Letters, 2007
- A Wideband Antenna With Dual Printed $L$-Probes for Cross-Polarization SuppressionIEEE Antennas and Wireless Propagation Letters, 2006
- A wideband patch antenna with cross-polarization suppressionIEEE Antennas and Wireless Propagation Letters, 2004
- Experimental study on radiation performance of probe-fed suspended plate antennasIEEE Transactions on Antennas and Propagation, 2003
- Broad-band dual-polarized single microstrip patch antenna with high isolation and low cross polarizationIEEE Transactions on Antennas and Propagation, 2002
- Wideband and high-gain one-patch microstrip antenna coupled with H-shaped apertureElectronics Letters, 2002
- Suppression of unwanted probe radiation in wideband probe-fed microstrip patchesElectronics Letters, 1999
- Improved coupling for aperture coupled microstrip antennasElectronics Letters, 1991
- Crosspolarisation characteristics of rectangular patch antennasElectronics Letters, 1988