Title :
A compact UWB antenna with dual band-notched characteristics using viahole structure
Author :
Nguyen, Viet Hung ; Maeda, T.
Author_Institution :
Dept. of Inf. & Commun. Sci., Ritsumeikan Univ., Kusatsu, Japan
Abstract :
In this paper, a viahole structure is applied to realize dual band-notched characteristic in a compact planar monopole antenna for ultrawide band (UWB) applications. The proposed antenna consists of a modified radiating patch element and a ground plane. Three patches are etched on the back of the antenna and connected to the main patch by series of via holes to realize the WiMAX 3.5 GHz notched band and the WLAN 5.5 GHz notched band. The simulation and measurement show that the proposed antenna achieves an impedance bandwidth of 3.1-10.6 GHz with VSWR<;2, except the bandwidths of WiMAX and WLAN. A nearly omnidirectional radiation pattern and stable gain are also obtained except in the notched bands.
Keywords :
antenna radiation patterns; microstrip antennas; monopole antennas; multifrequency antennas; planar antennas; ultra wideband antennas; WLAN notched band; WiMAX notched band; bandwidth 3.1 GHz to 10.6 GHz; compact UWB antenna; compact planar monopole antenna; dual band-notched characteristics; frequency 3.5 GHz; frequency 5.5 GHz; ground plane; impedance bandwidth; modified radiating patch element; nearly omnidirectional radiation pattern; ultrawide band applications; viahole structure; Antenna measurements; Antenna radiation patterns; Bandwidth; Frequency measurement; Ultra wideband antennas; Wireless LAN;
Conference_Titel :
Advanced Technologies for Communications (ATC), 2011 International Conference on
Conference_Location :
Da Nang
Print_ISBN :
978-1-4577-1206-7
DOI :
10.1109/ATC.2011.6027485
