The Design of a Resistively Loaded Bowtie Antenna for Applications in Breast Cancer Detection Systems

Author

See, Chan Hwang ; Abd-Alhameed, Raed A. ; Chung, Siau Wei Jonis ; Zhou, Dawei ; Al-Ahmad, Hussain ; Excell, Peter S.

Author_Institution

Mobile & Satellite Commun. Res. Centre, Bradford Univ., Bradford, UK

Volume

60

Issue

5

fYear

2012

fDate

5/1/2012 12:00:00 AM

Firstpage

2526

Lastpage

2530

Abstract

A resistively loaded bowtie antenna, intended for applications in breast cancer detection, is adaptively modified through modelling and genetic optimization. The required wideband operating characteristic is achieved through manipulation of the resistive loading of the antenna structure, the number of wires, and their angular separation within the equivalent wire assembly. The results show an acceptable impedance bandwidth of 100.75%, with a challenge VSWR <; 2, over the interval from 3.3 GHz to 10.0 GHz. Feasibility studies were made on the antenna sensitivity for operation in a tissue-equivalent dielectric medium. The simulated and measured results are all in close agreement.

Keywords

biomedical communication; bow-tie antennas; cancer; genetic algorithms; angular separation; antenna sensitivity; breast cancer detection systems; equivalent wire assembly; frequency 3.3 GHz to 10.0 GHz; genetic optimization; impedance bandwidth; resistively loaded bowtie antenna for; tissue-equivalent dielectric medium; Antenna measurements; Loaded antennas; Microwave antennas; Microwave theory and techniques; Wires; Genetic algorithms; impedance bandwidth; resistive loading; wire bowtie antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2012.2189730

Filename

6162961