Title :
Compact wideband antenna with double-fed structure having band-notched characteristics
Author :
Cai, L.Y. ; Li, Yuhua ; Zeng, Gang ; Yang, H.C.
Author_Institution :
Inst. of Appl. Phys., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A compact ultra-wideband (UWB) printed planar antenna with double band-notched characteristic is presented. This antenna consists of a circular monopole and two W-shaped slots etched into the monopole and the truncated ground plane, which lead to the desired high attenuation at the two notch frequencies: WiMAX (3.4-3.8 GHz), WLAN (4.8-6.2 GHz). It is fed by a microstrip line with a double-fed structure and built on an FR-4 substrate with 20 × 30 mm surface area. The antenna is successfully simulated by CST, and measured to cover the bandwidth for UWB (3.0-10.8 GHz), which is obtained with promising performances, including stable radiation patterns and constant gain over its whole frequency band of interest.
Keywords :
WiMax; antenna radiation patterns; microstrip antennas; monopole antennas; planar antennas; slot antennas; ultra wideband antennas; wireless LAN; FR-4 substrate; W-shaped slots; WLAN; WiMAX; band notched characteristic; compact ultrawideband printed planar antenna; double-fed structure; frequency 3.0 GHz to 10.8 GHz; microstrip line; monopole antenna radiation patterns; notch frequency; truncated ground plane;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2574
