Summary
International Symposium on Antennas and Propagation
2008
Session Number:2C11
Session:
Number:2C11-2
A Novel Monopole Antenna with a Band Notch Design for Ultra-Wideband Applications
I-Tseng Tang, Ding-Bing Lin, Chi-Min Li, Yu-Jen Chou, Chih-Yang Lin,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
In February 2002 the Federal Communications Commission (FCC) in the United States released unlicensed frequency band of 3.1 to 10.6 GHz for commercial communication applications [1]. So far, ultra wide band (UWB) technique had become the first candidate of short-range high-speed wireless communication systems. The antenna is an important component, which determines the performance of UWB systems; moreover one of principal subjects in UWB device is to design a compact antenna. Recently, UWB antenna development tends to concentrate on small planar antennas [2?3]. UWB antennas are also necessary for the rejection of an interference with existing wireless networking technologies such as IEEE 802.11a in the U.S. (5.15~5.35 GHz, 5.725~5.825 GHz) and HIPERLAN/2 in Europe (5.15~5.35 GHz, 5.47~5.725 GHz) [4-7]. This is due to the fact that UWB transmitters should not cause any electromagnetic interference on nearby communication system such as wireless local area network (WLAN) applications. Therefore, UWB antennas with notched characteristics in WLAN frequency band are desired. To fulfill this requirement, an UWB antenna with a band-stop characteristic is therefore expected. So far, several UWB antennas with the frequency-notch function have been reported. The advantages of slot antennas include wide bandwidth performance and low cost in the printed circuit board process, and also CPW fed slot antenna also have wide bandwidth and easy integration with monolithic microwave integrated circuits.