TY - GEN
T1 - Linear series-fed patch array with dual circular polarization or arbitrary linear polarization
AU - Chen, Shengjian Jammy
AU - Withayachumnankul, Withawat
AU - Monnai, Yasuaki
AU - Fumeaux, Christophe
PY - 2019/9
Y1 - 2019/9
N2 - A linear series-fed dual-port patch array working at 10 GHz with dual circular polarization or arbitrary linear polarization is proposed. This array consists of five circular patch elements which are serially excited by a traveling wave guided in a microstrip line. Despite that only five radiation elements are used, the array still exhibits high antenna efficiency greater than 93% averaged over the operation band. The typical trade-off between number of elements and antenna efficiency in series-fed array designs is overcome through the enhancement of coupling strength between the element and the feed line. The resulting high isolation between the two ports enables dual feeding configuration with low coupling. When only one port is excited, either right-handed or left-handed circular polarization radiation can be generated, as the sense of polarization is dependent on the traveling wave direction. When two ports are used simultaneously, arbitrary linear polarization can be realized by properly offsetting their phase difference. Based on reciprocity, this array can be also used for polarimetry applications. Experimental characterization on a fabricated antenna prototype validates the design.
AB - A linear series-fed dual-port patch array working at 10 GHz with dual circular polarization or arbitrary linear polarization is proposed. This array consists of five circular patch elements which are serially excited by a traveling wave guided in a microstrip line. Despite that only five radiation elements are used, the array still exhibits high antenna efficiency greater than 93% averaged over the operation band. The typical trade-off between number of elements and antenna efficiency in series-fed array designs is overcome through the enhancement of coupling strength between the element and the feed line. The resulting high isolation between the two ports enables dual feeding configuration with low coupling. When only one port is excited, either right-handed or left-handed circular polarization radiation can be generated, as the sense of polarization is dependent on the traveling wave direction. When two ports are used simultaneously, arbitrary linear polarization can be realized by properly offsetting their phase difference. Based on reciprocity, this array can be also used for polarimetry applications. Experimental characterization on a fabricated antenna prototype validates the design.
KW - Antenna efficiency
KW - Arbitrary linear polarization
KW - Dual circular polarization
KW - Dual-feed
KW - Series-fed antenna array
UR - http://www.scopus.com/inward/record.url?scp=85074927171&partnerID=8YFLogxK
U2 - 10.1109/ICEAA.2019.8879041
DO - 10.1109/ICEAA.2019.8879041
M3 - Conference contribution
AN - SCOPUS:85074927171
T3 - Proceedings of the 2019 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
SP - 365
EP - 369
BT - Proceedings of the 2019 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
PB - Institute of Electrical and Electronics Engineers
T2 - 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
Y2 - 9 September 2019 through 13 September 2019
ER -