TY - GEN
T1 - Circularly-polarized conical-beam patch antenna with wide bandwidth and polarization diversity
AU - Wong, Hang
AU - Lin, Wei
N1 - Publisher Copyright:
© 2014 Institute of Antenna Engineers of Taiwan.
PY - 2015/1/28
Y1 - 2015/1/28
N2 - This paper introduces a wideband circularly polarized (CP) antenna with polarization diversity for conical-beam radiation pattern. The antenna composes of a wideband monopolar patch and eight parasitic loop stubs. Shorting pins on the monopolar patch are used to obtain a wide impedance bandwidth. And the other set of shorting pins on the loop stubs are utilized for realizing a wide axial ratio bandwidth. PIN diodes are applied to achieve polarization diversity. Right handed circular polarization (RHCP) and left handed circular polarization (LHCP) can be altered by controlling the operation of different group of diodes. Obtained results show that the proposed antenna has the wide impedance bandwidth of 29% and the wide axial ratio bandwidth of 15% for both CP modes. In addition, the stable conical-beam radiation patterns can be found across the operating bandwidth with the maximum gain of 4.4 dBic. This antenna is suitable to be mounted on moving vehicles for geostationary satellite communication without satellite tracking.
AB - This paper introduces a wideband circularly polarized (CP) antenna with polarization diversity for conical-beam radiation pattern. The antenna composes of a wideband monopolar patch and eight parasitic loop stubs. Shorting pins on the monopolar patch are used to obtain a wide impedance bandwidth. And the other set of shorting pins on the loop stubs are utilized for realizing a wide axial ratio bandwidth. PIN diodes are applied to achieve polarization diversity. Right handed circular polarization (RHCP) and left handed circular polarization (LHCP) can be altered by controlling the operation of different group of diodes. Obtained results show that the proposed antenna has the wide impedance bandwidth of 29% and the wide axial ratio bandwidth of 15% for both CP modes. In addition, the stable conical-beam radiation patterns can be found across the operating bandwidth with the maximum gain of 4.4 dBic. This antenna is suitable to be mounted on moving vehicles for geostationary satellite communication without satellite tracking.
KW - Circular polarization
KW - conical-beam pattern
KW - patch antenna
KW - polarization diversity
KW - wide bandwidth
UR - http://www.scopus.com/inward/record.url?scp=84924033878&partnerID=8YFLogxK
U2 - 10.1109/ISANP.2014.7026711
DO - 10.1109/ISANP.2014.7026711
M3 - Conference article published in proceeding or book
AN - SCOPUS:84924033878
T3 - ISAP 2014 - 2014 International Symposium on Antennas and Propagation, Conference Proceedings
SP - 429
EP - 430
BT - ISAP 2014 - 2014 International Symposium on Antennas and Propagation, Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 International Symposium on Antennas and Propagation, ISAP 2014
Y2 - 2 December 2014 through 5 December 2014
ER -