Open AccessW‐band grooved‐wall circularly polarised horn antenna
Author(s) -
Shu Chao,
Hu Shaoqing,
Yao Yuan,
Alfadhl Yasir,
Chen Xiaodong
Publication year - 2020
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2020.0100
Subject(s) - french horn , horn antenna , optics , antenna (radio) , physics , directional antenna , acoustics , slot antenna , telecommunications , engineering
This study presents a novel design of circularly polarised horn antenna in W‐band with wide impedance bandwidth and 3 dB axial ratio (AR) bandwidth. By introducing a pair of grooves on the wall of a horn antenna, this simple and compact structure is capable of generating a circular polarisation (CP) wave without any extra polariser and is expecting a better power‐handling capability. The full‐wave simulation results show that 36.9% bandwidth from 75.4 to 109.5 GHz can be achieved with S 11 <−21 dB and AR<3 dB, while the directivity is 16.56 ± 1.37 dBic. It is anticipated that the proposed antenna is suitable for wideband mmWave applications.