TY - GEN
T1 - Dual-Beam Gain-Reconfigurable Antennas Using A Shared Reflectarray Aperture
AU - Liu, Sen
AU - Chen, Qiang
N1 - Publisher Copyright:
© 2019 Antenna Branch of Chinese Institute of Electronics.
PY - 2019/10
Y1 - 2019/10
N2 - In this paper, a reflectarray based dual-beam gain-reconfigurable structure is proposed for dynamically controlling the gain of each beam. In this structure, two phased-array feeds are illuminating one shared reflectarray aperture. By modulating the excitation conditions for each phased-array feed and compensation phase distribution on the aperture, dual beams with different gains can be realized simultaneously, which can be useful for fully terminal coverage for the base station antennas of mobile communications. Two sets of beam states have been chosen to validate the novel structure. From the simulation results, a gain of 20.9dB is obtained for equal beam-state resulting in 39.1% aperture efficiency. For the other beam-state, two beams with 22.2dB and 18.4dB gains are achieved. The corresponding aperture efficiency are 40.4% and 31.4%, respectively.
AB - In this paper, a reflectarray based dual-beam gain-reconfigurable structure is proposed for dynamically controlling the gain of each beam. In this structure, two phased-array feeds are illuminating one shared reflectarray aperture. By modulating the excitation conditions for each phased-array feed and compensation phase distribution on the aperture, dual beams with different gains can be realized simultaneously, which can be useful for fully terminal coverage for the base station antennas of mobile communications. Two sets of beam states have been chosen to validate the novel structure. From the simulation results, a gain of 20.9dB is obtained for equal beam-state resulting in 39.1% aperture efficiency. For the other beam-state, two beams with 22.2dB and 18.4dB gains are achieved. The corresponding aperture efficiency are 40.4% and 31.4%, respectively.
KW - Dual-beam
KW - Gain-control
KW - Phased-array feed
KW - Reflectarray
UR - http://www.scopus.com/inward/record.url?scp=85078995235&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85078995235&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85078995235
T3 - 2019 International Symposium on Antennas and Propagation, ISAP 2019 - Proceedings
BT - 2019 International Symposium on Antennas and Propagation, ISAP 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 International Symposium on Antennas and Propagation, ISAP 2019
Y2 - 27 October 2019 through 30 October 2019
ER -