TY - GEN
T1 - All-metal broadband circularly polarized feed antenna applied to millimeter wave imaging system
AU - Han, Xu
AU - Qiu, Jing Hui
AU - Wang, Nan Nan
AU - Gao, Peng
AU - Denisov, Alexander
N1 - Publisher Copyright:
© 2021 IEICE.
PY - 2021/1/25
Y1 - 2021/1/25
N2 - In order to eliminate the tail shadow caused by unstable structure like substrate integrated circularly polarized antenna, an antipodal exponential-logarithmic slot antenna (ALETSA) is improved to achieve an ultra-wideband circular polarization, low side lobe level, low loss and wide beam at W band and F band. The improved ALETSA is directly fed by a standard rectangular waveguide and loaded with rectangular slots. The relative working bandwidth reaches more than 77.7%. The optimized AELTSA realizes that return loss is below -17 dB, side lobe lower than -18 dB and the axial ratio lower than 3 dB from 70 to 140 GHz.
AB - In order to eliminate the tail shadow caused by unstable structure like substrate integrated circularly polarized antenna, an antipodal exponential-logarithmic slot antenna (ALETSA) is improved to achieve an ultra-wideband circular polarization, low side lobe level, low loss and wide beam at W band and F band. The improved ALETSA is directly fed by a standard rectangular waveguide and loaded with rectangular slots. The relative working bandwidth reaches more than 77.7%. The optimized AELTSA realizes that return loss is below -17 dB, side lobe lower than -18 dB and the axial ratio lower than 3 dB from 70 to 140 GHz.
KW - Circular polarization(CP)
KW - Millimeter wave imaging
KW - Rectangular slot
KW - Waveguide-fed antenna
UR - https://www.scopus.com/pages/publications/85104494837
U2 - 10.23919/ISAP47053.2021.9391245
DO - 10.23919/ISAP47053.2021.9391245
M3 - 会议稿件
AN - SCOPUS:85104494837
T3 - 2020 International Symposium on Antennas and Propagation, ISAP 2020
SP - 85
EP - 86
BT - 2020 International Symposium on Antennas and Propagation, ISAP 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 International Symposium on Antennas and Propagation, ISAP 2020
Y2 - 25 January 2021 through 28 January 2021
ER -