Dual-band circularly polarized cavity-backed annular slot antenna for GPS receiver
Journal
IEEE Transactions on Antennas and Propagation
Journal Volume
60
Journal Issue
4
Pages
2076-2080
Date Issued
2012-04
Author(s)
Abstract
A circularly polarized (CP) cavity-backed annular slot antenna for GPS receiver is designed to operate in both the L1 and L2 bands of the Global Positioning System (GPS). The measured impedance bandwidths with VSWR less than 2 are 3.7% (1.19-1.235 GHz) and 1.2% (1.565-1.585 GHz), respectively, the measured 3 dB axial-ratio (AR) bandwidth are 0.9% (1.220-1.231 GHz) and 0.6% (1.572-1.581 GHz), respectively. A cavity is designed to render a unidirectional radiation pattern.
SDGs
Type
journal article