TY - JOUR
T1 - A W-Band Circular Box-Horn Antenna Array Radiating Sum and Difference Beams with Suppressed Sidelobe
AU - Shen, Rong
AU - Ye, Xiuzhu
AU - Xie, Jinhua
AU - Chen, Zhijiao
AU - Jin, Cheng
N1 - Publisher Copyright:
© 1963-2012 IEEE.
PY - 2019/9
Y1 - 2019/9
N2 - A circular aperture box-horn array antenna operating in W-band, with sum and difference radiation beams, is presented in this paper. The circular aperture provides maximum usage efficiency of the area, which is well suited for a rotational platform. Nonuniform power distribution is applied for the radiating elements, contributing to a radiation pattern with suppressed sidelobe. In order to fit into the circular aperture, the feed networks are optimally arranged on a compact two-planar layer with four quadrants fed by the sum-difference network. The antenna array, along with its full-corporate feed networks, has a low profile and is easy to be machined. Measured results show that the peak gain is over 35.6 dBi from 92 to 94 GHz, with up to -21 dBi sidelobe level. In addition, the sum-difference contradictions are less than 4 dB, and the nulls of difference beams are below -25 dB.
AB - A circular aperture box-horn array antenna operating in W-band, with sum and difference radiation beams, is presented in this paper. The circular aperture provides maximum usage efficiency of the area, which is well suited for a rotational platform. Nonuniform power distribution is applied for the radiating elements, contributing to a radiation pattern with suppressed sidelobe. In order to fit into the circular aperture, the feed networks are optimally arranged on a compact two-planar layer with four quadrants fed by the sum-difference network. The antenna array, along with its full-corporate feed networks, has a low profile and is easy to be machined. Measured results show that the peak gain is over 35.6 dBi from 92 to 94 GHz, with up to -21 dBi sidelobe level. In addition, the sum-difference contradictions are less than 4 dB, and the nulls of difference beams are below -25 dB.
KW - Array antenna
KW - low-sidelobe
KW - millimeter wave
KW - sum-difference network
UR - https://www.scopus.com/pages/publications/85068114705
U2 - 10.1109/TAP.2019.2920358
DO - 10.1109/TAP.2019.2920358
M3 - Article
AN - SCOPUS:85068114705
SN - 0018-926X
VL - 67
SP - 5934
EP - 5942
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 9
M1 - 8745696
ER -