Title :
Bandwidth enhancement of dual band-notched circle-like slot antenna
Author :
Emadian, R. ; Mirmozafari, M. ; Ghobadi, Ch ; Nourinia, J.
Author_Institution :
Dept. of Electr. Eng., Urmia Univ., Urmia, Iran
Abstract :
A novel modified circle-like slot antenna with dual band-notched characteristics for various UWB applications is presented. Two shorting pins running through the substrate connect the tuning stub to the L-shaped stubs printed on the bottom of the substrate to highly increase the antenna bandwidth. By etching two L-shaped slots in the ground plane connected to the circle-like slot and embedding two parasitic strips inside the circle-like slot, the antenna provides dual band-notched characteristics. The designed antenna offers a very wide bandwidth from 2.1 to 20 GHz (162%) with two notched bands covering all the 5/6 GHz WLAN and 3.5/5.5 GHz WiMAX bands.
Keywords :
multifrequency antennas; slot antennas; ultra wideband antennas; L-shaped slots; L-shaped stubs; UWB applications; bandwidth 2.1 GHz to 20 GHz; bandwidth enhancement; dual band-notched characteristics; frequency 3.5 GHz; frequency 5 GHz; frequency 5.5 GHz; frequency 6 GHz; modified circle-like slot antenna; parasitic strips; tuning stub;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.4024
