Premium
Design and characterization of a W‐band wide‐beam horn for radio holography
Author(s) -
Zhang Xiaoling,
Lou Zheng,
Zuo Yingxi,
Kang Haoran,
Wang Yu
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32586
Subject(s) - french horn , reflector (photography) , holography , optics , feed horn , beam (structure) , characterization (materials science) , phase (matter) , horn antenna , near and far field , focus (optics) , physics , engineering , acoustics , electrical engineering , directional antenna , slot antenna , radiation pattern , periscope antenna , light source , antenna (radio) , quantum mechanics
A W‐band wide‐beam horn suitable for prime‐focus feed is described in this paper. It was designed to provide better illuminations for outer panels of larger reflector antennas and to improve performance of radio holography systems. Much effort has been spent on precise characterization of the amplitude and phase patterns of the wide beam horn which has a direct impact on the measurement accuracy of the radio holography. A far‐field measurement setup with the correction of phase errors due to cable flexing has been developed. Good beam pattern agreement has been achieved between simulation and measurement.