Four-element varactor diode loaded polarisation-agile microstrip antenna array
- 1 January 1997
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 33 (14), 1186-1187
- https://doi.org/10.1049/el:19970801
Abstract
A square, varactor diode-loaded polarisation-agile microstrip patch, radiating either circular polarisation (left or right hand) or linear polarisation (in two orthogonal planes) is described. A linear array comprising four such patches has been designed. Measurements show, when operated in circular polarisation, axial ratios better than 0.5 dB and, in linear polarisation, cross-polar levels better than –20 dB.Keywords
This publication has 4 references indexed in Scilit:
- Independent control of resonant frequency and input impedance of a microstrip patch by individually biased varactor diodesElectronics Letters, 1996
- Varactor-diode loaded passive polarisation-agile patch antennaElectronics Letters, 1994
- Analysis and optimized design of single feed circularly polarized microstrip antennasIEEE Transactions on Antennas and Propagation, 1983
- Microstrip antennas with frequency agility and polarization diversityIEEE Transactions on Antennas and Propagation, 1981