Summary
International Symposium on Antennas and Propagation
2012
Session Number:3B1
Session:
Number:3B1-2
A Wideband, Low Profile P- and Ku-band Dual Polarized Shared Aperture Antenna
Shi Gang Zhou,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
This paper presents a design to integrate P-band and Ku-band antenna in a shared compact planar aperture. The antenna consists one antenna element for P-band and a 8x8 planar array for Ku-band. To share the same radiation aperture, the Ku-band antenna array is placed on the P-band patch. This means that the P-band patch serves as both the radiation patch in P-band and the reflector plane in Ku-band. To obtain a wide bandwidth, stacked patch antenna is selected for Ku-band and L-probe feeding is selected for P-band. The antenna is analysed with HFSS software and the simulated results are presented. Based on VSWR< 2 criteria, bandwidths of 26.4 % (325-424 MHz) and 13.3 % (14.0-16.0 GHz) are obtained for P- and Ku-bands respectively. As the feeding network in the Ku-band contributed some unwanted radiation, sidelobes of below -10 dB is obtained over the frequency band from 14.1 to 15.7 GHz. The simulated gain varies from 5.4 to7.4 dB in the P-band (325-424 MHz) and and 23.0 to 24.4 dB in the Ku-band (14.1-15.7 GHz) respectively. Good isolation and cross polarization performances of this antenna are observed in both bands.