Summary
International Symposium on Antennas and Propagation
2012
Session Number:3B3
Session:
Number:3B3-1
A Study of a Leaf-shaped Bowtie Slot Antenna for UWB Applications
Soh Fujita, Manabu Yamamoto, Toshio Nojima,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
As a planar-type wideband antenna being useful for UWB radio systems, the authors have previously proposed a wideband dipole antenna being composed of leaf-shaped bowtie radiating elements. In this paper, a leaf-shaped bowtie slot antenna, which is a complementary structure of the above-mentioned dipole antenna, is proposed and its characteristics are revealed by FDTD analysis and measurements. In the first place, the antenna having the operating frequency band from 7GHz to 10GHz (UWB high band in Japan) is designed, and its reflection coefficient is evaluated for the case when the feeding point is arranged in the centre portion of the antenna. Based on the evaluated results, a feeding circuit for the proposed antenna is designed. Antenna characteristics for the case with the feeding circuit are evaluated with FDTD analysis and measurements in order to confirm the effective performance of the proposed configuration.