Open AccessFish‐shaped ultra‐wideband patch antenna with tilt‐folded patch feed
Author(s) -
Chen Bingjie,
Yang Xuesong,
Hu Dacheng
Publication year - 2019
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.2018.5556
Subject(s) - patch antenna , ground plane , microstrip antenna , bandwidth (computing) , wideband , acoustics , radiation pattern , optics , antenna efficiency , antenna (radio) , materials science , antenna measurement , physics , telecommunications , computer science
This article introduces a low‐profile fish‐shaped antenna for ultra‐wideband applications. The proposed antenna exhibits an impedance bandwidth of 132% (4.28 to 21 GHz) with a size of 0.199 λ L × 0.256 λ L × 0.092 λ L (where λ L is the wavelength at 4.28 GHz). By using a U‐shaped slot and stepped arms on the upper patch, as well as a tilt‐folded patch feed, four resonances are produced and then wide bandwidth is achieved. By introducing a shorting wall standing between the fish‐shaped patch and the ground plane, the antenna size is reduced. The simulation and measurement results show that the antenna provides excellent performance in different bands, meaning that acceptable gain and stable radiation patterns are obtained simultaneously.