Open AccessDual‐band bow‐tie slot antenna fed by coplanar waveguide
Author(s) -
Liu H.W.,
Zhan X.,
Li S.,
Lei J.H.,
Qin F.
Publication year - 2014
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.2014.1700
Subject(s) - coplanar waveguide , slot antenna , ground plane , antenna (radio) , multi band device , impedance matching , bow tie , optics , electrical impedance , radiation pattern , physics , electrical engineering , acoustics , telecommunications , engineering , microwave
A dual‐band coplanar waveguide (CPW)‐fed bow‐tie slot antenna is proposed, which consists of a bow‐tie slot, a pair of sector parasitic patches and a modified grounded plane with a band‐notch property. The impedance matching, the resonant mode, the radiation patterns and the current distributions are studied. To generate dual‐band characteristics, a V‐shaped slot is etched on the radiating ground. Experimental and simulated results demonstrate that the antenna exhibits two separate impedance bandwidths of 1450 MHz (about 32.8% centred at 4.43 GHz) and 3500 MHz (about 37.8% centred at 9.25 GHz), which satisfy aircraft radar and X‐band applications.