TY - GEN
T1 - A Multi-Beam Transmitarray Antenna with Scanning Loss Improvement
AU - Han, Zhubin
AU - Du, Yu
AU - Li, Jianying
N1 - Publisher Copyright:
© 2025 European Association on Antennas and Propagation.
PY - 2025
Y1 - 2025
N2 - In this paper, a multi-beam transmitarray antenna (TA) is proposed, which has the characteristics of polarization conversion and low scanning loss. The TA element adopts double-layer structure, and the two layers are orthogonal to each other. This element has selective properties for linearly polarized waves and can convert incident linear polarized (LP) waves into orthogonally LP waves. Seven waveguide antennas are used as feed antennas, and beam scanning can be realized by switching feed antennas. In addition, an optimization method of phase distribution is proposed to improve the scanning loss. And the method is verified by simulation. The maximum gain of TA is 21.79 dBi at 10 GHz, which can realize beam scanning of ± 25° in the elevation plane, and the scanning loss is not more than 1.6dB.
AB - In this paper, a multi-beam transmitarray antenna (TA) is proposed, which has the characteristics of polarization conversion and low scanning loss. The TA element adopts double-layer structure, and the two layers are orthogonal to each other. This element has selective properties for linearly polarized waves and can convert incident linear polarized (LP) waves into orthogonally LP waves. Seven waveguide antennas are used as feed antennas, and beam scanning can be realized by switching feed antennas. In addition, an optimization method of phase distribution is proposed to improve the scanning loss. And the method is verified by simulation. The maximum gain of TA is 21.79 dBi at 10 GHz, which can realize beam scanning of ± 25° in the elevation plane, and the scanning loss is not more than 1.6dB.
KW - low scanning loss
KW - multi-beam
KW - phase distribution
KW - polarization conversion
KW - transmitarray (TA)
UR - https://www.scopus.com/pages/publications/105007503821
U2 - 10.23919/EuCAP63536.2025.10999285
DO - 10.23919/EuCAP63536.2025.10999285
M3 - 会议稿件
AN - SCOPUS:105007503821
T3 - EuCAP 2025 - 19th European Conference on Antennas and Propagation
BT - EuCAP 2025 - 19th European Conference on Antennas and Propagation
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 19th European Conference on Antennas and Propagation, EuCAP 2025
Y2 - 30 March 2025 through 4 April 2025
ER -