Summary
International Symposium on Antennas and Propagation
2008
Session Number:2C11
Session:
Number:2C11-3
Design of Dual-Band Antenna for WLAN/UWB Applications
Jung N. Lee, Ji H. Kim, Jong K. Park, Jin S. Kim,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
In this paper, we have proposed a dual-band antenna with U-shaped open stub for WLAN/UWB applications. The target frequency bands are 2.45 GHz WLAN and 3.1 - 5.2 GHz DS-UWB low band or MB-OFDM lower three bands. The designed dual-band antenna consists of two semi-circle radiating patches, a rectangular slot separating the two semi-circles, one step for impedance matching, and CPW feeding. Ansoft high frequency structure simulator (HFSS) [8] is used to simulate the proposed antennas. The measured results of the fabricated prototypes will be given and compared with the simulated results. The measured results show that the proposed antenna can cover the MB-OFDM lower three bands (3.1 to 4.8 GHz) and WLAN band. The designed antenna has non-directional pattern in the horizontal plane and directional pattern in the vertical plane. The variation of the group delay is less than 1 ns and the insertion loss is almost constant across the operating frequency band.