TY - JOUR
T1 - In-Band RCS Reduction and Gain Enhancement for a Patch Antenna Array by Using a 1-D Periodic Metasurface Reflector
AU - Han, Zi Jian
AU - Song, Wei
AU - Sheng, Xin Qing
N1 - Publisher Copyright:
© 1963-2012 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - A low-profile metasurface (MS) with low scattering performance for both the x - and y -polarizations is designed based on far-field cancellation. Different from a conventional MS with a low radar cross section that uses chessboard structures, this design makes use of a 1-D MS. Without requiring periodicity in two dimensions, the proposed MS can thus be integrated more flexibly in many applications. Based on the proposed MS, a patch antenna array is proposed. Full-wave simulations and measurements show that, by incorporating the proposed MS, the scattering of the antenna array can be reduced by more than 5 dB over the antenna operating frequency band from 10.7 to 12 GHz (11.45%) under normal incidence. Furthermore, when the array radiates, parasitic radiation can be excited from the slots of the MS, which enhances the boresight gain of the array.
AB - A low-profile metasurface (MS) with low scattering performance for both the x - and y -polarizations is designed based on far-field cancellation. Different from a conventional MS with a low radar cross section that uses chessboard structures, this design makes use of a 1-D MS. Without requiring periodicity in two dimensions, the proposed MS can thus be integrated more flexibly in many applications. Based on the proposed MS, a patch antenna array is proposed. Full-wave simulations and measurements show that, by incorporating the proposed MS, the scattering of the antenna array can be reduced by more than 5 dB over the antenna operating frequency band from 10.7 to 12 GHz (11.45%) under normal incidence. Furthermore, when the array radiates, parasitic radiation can be excited from the slots of the MS, which enhances the boresight gain of the array.
KW - Antenna array
KW - gain enhancement
KW - periodic metamaterials
KW - radar cross section (RCS) reduction
UR - http://www.scopus.com/inward/record.url?scp=85067015681&partnerID=8YFLogxK
U2 - 10.1109/TAP.2019.2905989
DO - 10.1109/TAP.2019.2905989
M3 - Article
AN - SCOPUS:85067015681
SN - 0018-926X
VL - 67
SP - 4269
EP - 4274
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 6
M1 - 8668798
ER -