TY - GEN
T1 - Flat metamaterial antenna with dual-circular-polarization at the -1st-order-resonance mode, applicable to reconfigurable RF systems
AU - Yang, Inkyu
AU - Kahng, Sungtek
AU - Kahng, Kyungseok
AU - Mok, Segyoon
AU - Yoo, Seongryong
AU - Anguera, Jaume
PY - 2013
Y1 - 2013
N2 - In this paper, a novel compact and dual-circular-polarized antenna is proposed. To be physically small, the electromagnetic wave is radiated at the -1st-order resonance mode of a planar composite right- and left-handed(CRLH) antenna, instead of the +1st resonance mode. To enable two circular polarizations in one structure, the orthogonal coaxial feed points for the 90°-angular difference are decided at the -1st resonance mode, and connected to the output ports of a hybrid branch-line coupler for 90°-phase difference. The functional block diagram is given, and is followed by the steps of full-wave simulations for design and the performance is verified by the measurement of the fabricated antenna with the test frequency of the 2.37-2.40 GHz band. The LHCP and RHCP will be observed with good inter-polarization isolation and axial ratio, and the applicability to a compact reconfigurable RF device will be considered.
AB - In this paper, a novel compact and dual-circular-polarized antenna is proposed. To be physically small, the electromagnetic wave is radiated at the -1st-order resonance mode of a planar composite right- and left-handed(CRLH) antenna, instead of the +1st resonance mode. To enable two circular polarizations in one structure, the orthogonal coaxial feed points for the 90°-angular difference are decided at the -1st resonance mode, and connected to the output ports of a hybrid branch-line coupler for 90°-phase difference. The functional block diagram is given, and is followed by the steps of full-wave simulations for design and the performance is verified by the measurement of the fabricated antenna with the test frequency of the 2.37-2.40 GHz band. The LHCP and RHCP will be observed with good inter-polarization isolation and axial ratio, and the applicability to a compact reconfigurable RF device will be considered.
UR - http://www.scopus.com/inward/record.url?scp=84894145504&partnerID=8YFLogxK
U2 - 10.1109/APS.2013.6711143
DO - 10.1109/APS.2013.6711143
M3 - Conference contribution
AN - SCOPUS:84894145504
SN - 9781467353175
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 968
EP - 969
BT - 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings
T2 - 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013
Y2 - 7 July 2013 through 13 July 2013
ER -