Title :
Unidirectional planar monopole ultra-wideband antenna using wrench-shaped feeding structure
Author :
Ellis, Mubarak Sani ; Zhiqin Zhao ; Jiangniu Wu ; Nie, Zaiping ; Qing-Huo Liu
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China (UESTC), Chengdu, China
Abstract :
A unidirectional planar monopole ultra-wideband (UWB) antenna is presented. To realise unidirectional radiation, a new feed structure is implemented without modifications in the ground plane or the monopole. By using a wrench-shaped feeding structure, unidirectional radiation of the planar monopole antenna can be realised, especially at high frequencies. The antenna is built on a 20 × 30 mm FR4 substrate to cover a frequency bandwidth from 3.1 to over 14 GHz for a voltage standing wave ratio ≤2.
Keywords :
antenna feeds; monopole antennas; planar antennas; ultra wideband antennas; FR4 substrate; feed structure; ground plane; size 20 mile; size 30 mm; unidirectional planar monopole ultra-wideband antenna; unidirectional radiation; voltage standing wave ratio; wrench-shaped feeding structure;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.0298
