Open AccessEdge‐radiating slot antenna based on half‐mode substrate integrated waveguide
Author(s) -
Zou Xiong,
Tong ChuangMing,
He Huan,
Geng Fangzhi
Publication year - 2017
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.2016.0884
Subject(s) - slot antenna , antenna efficiency , bandwidth (computing) , radiation pattern , optics , antenna measurement , directional antenna , microwave , antenna (radio) , materials science , acoustics , optoelectronics , physics , electrical engineering , engineering , telecommunications
Lots of substrate integrated waveguide (SIW) slot antennas appear to satisfy the extensive and intensive growth of wireless communication systems. However, there were few reports about edge‐radiating slot antenna based on SIW technology. In this study, a half‐mode SIW (HMSIW) edge‐radiating slot antenna is proposed for the first time by etching transversal slots both on the upper and lower surfaces of HMSIW. The radiation field of this antenna has been deduced from the field distribution of HMSIW. A 6‐slot‐pair antenna worked at 3.0 GHz with gain of 5.8 dBi is obtained by regulating the size and the number of slots. Through setting matching posts and a terminal load, the bandwidth can be expanded from 2 to 9.7%. The measured results show that the matching‐type antenna has radiation efficiency about 0.59, beam directions ranging from 0° to 53° and gains within 5.0–7.5 dBi in 3.05–3.35 GHz. This antenna has advantages of low profile, easy fabrication, wide bandwidth and frequency‐scanning property, which are great for microwave radar applications.