Open AccessPlanar super‐wideband loop antenna with asymmetric coplanar strip feed
Author(s) -
TrinhVan Son,
Kwon Gina,
Hwang Keum Cheol
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2015.2548
Subject(s) - planar , wideband , loop (graph theory) , antenna (radio) , coplanar waveguide , loop antenna , electronic engineering , electrical engineering , microstrip antenna , materials science , acoustics , engineering , computer science , telecommunications , physics , coaxial antenna , mathematics , microwave , computer graphics (images) , combinatorics
A planar super‐wideband (SWB) antenna fed by an asymmetric coplanar strip is proposed, fabricated, and tested. The antenna consists of a hexagonal loop strip in which a signal strip is prolonged, curved, and shorted to a ground plane to facilitate SWB characteristics. In addition, by adding a boomerang‐shaped strip to the ground plane, the effective electrical length is increased, thereby decreasing the lowest operating frequency. The simulated results show that the proposed antenna exhibits a −10 dB reflection bandwidth from 1.18 to 49.22 GHz corresponding to a ratio bandwidth of 41.7:1. The measured results of the fabricated antenna are also represented and compared with the simulated results. The antenna gain changes from 2.05 to 10.62 dBi within the measured frequency range.