TY - JOUR
T1 - Low-RCS and Wideband Reflectarray Antenna with High Radiation Efficiency
AU - Zhang, Binchao
AU - Jin, Cheng
AU - Lv, Qihao
AU - Chen, Jianhong
AU - Tang, Yue
N1 - Publisher Copyright:
© 1963-2012 IEEE.
PY - 2021/7
Y1 - 2021/7
N2 - This communication presents a wideband high-efficiency reflectarray antenna with a low radar cross section (RCS) based on metal pillars inserted absorptive frequency-selective reflector (AFSR). The AFSR is realized by the bent resistor-embedded metal strip, whose multimode resonance is utilized to obtain the wideband absorption-reflection-absorption performance. In addition, the realized AFSR is with compact lattice spacing characteristics, which enhances the antenna's radiation efficiency. Then, the metal pillars with variable heights are inserted into the AFSR serving as a phase shifter to flexibly control the reflection phase within the wide reflection band. Simulated and measured results show that the proposed reflectarray antenna has a pencil-beam radiation pattern from 6 to 8 GHz with an aperture efficiency up to 60.4%. Additionally, two RCS reduction bands with the fractional bandwidth of 66.7% and 32.3% are obtained.
AB - This communication presents a wideband high-efficiency reflectarray antenna with a low radar cross section (RCS) based on metal pillars inserted absorptive frequency-selective reflector (AFSR). The AFSR is realized by the bent resistor-embedded metal strip, whose multimode resonance is utilized to obtain the wideband absorption-reflection-absorption performance. In addition, the realized AFSR is with compact lattice spacing characteristics, which enhances the antenna's radiation efficiency. Then, the metal pillars with variable heights are inserted into the AFSR serving as a phase shifter to flexibly control the reflection phase within the wide reflection band. Simulated and measured results show that the proposed reflectarray antenna has a pencil-beam radiation pattern from 6 to 8 GHz with an aperture efficiency up to 60.4%. Additionally, two RCS reduction bands with the fractional bandwidth of 66.7% and 32.3% are obtained.
KW - Absorptive frequency-selective reflector (AFSR)
KW - frequency-selective surface (FSS)
KW - radar cross section (RCS) reduction
KW - reflectarray antenna
UR - http://www.scopus.com/inward/record.url?scp=85098800578&partnerID=8YFLogxK
U2 - 10.1109/TAP.2020.3044660
DO - 10.1109/TAP.2020.3044660
M3 - Article
AN - SCOPUS:85098800578
SN - 0018-926X
VL - 69
SP - 4212
EP - 4216
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 7
M1 - 9301174
ER -