Wideband Loaded Wire Bow-tie Antenna for Near Field Imaging Using Genetic Algorithms

Chung, S.W.J.; Abd-Alhameed, Raed A.; See, Chan Hwang; Excell, Peter S.

Abstract

The potentially broad application area in engineering design using Genetic Algorithm (GA) has been widely adopted by many researchers due to its high consistency and accuracy. Presented here is the initial design of a wideband non-dispersive wire bow-tie antenna using GA for breast cancer detection applications. The ultimate goal of this design is to achieve minimal late-time ringing but at higher frequencies such as that located from 4 to 8 GHz, in which is desire to penetrate human tissue for near field imaging. Resistively loading method to reduce minimal ringing caused by the antenna internal reflections is implemented and discussed when the antenna is located in free space and surrounded by lossy medium. Results with optimised antenna geometry and different number of resistive loads are presented and compared with and without existence of scatterers.

• Presentation Conference Type: Conference Paper (Published)
• Conference Name: Progress in Electromagnetics Research Symposium (PIERS2008)
• Start Date: Jul 2, 2008
• End Date: Jul 6, 2008
• Acceptance Date: May 12, 2008
• Publication Date: Jul 2, 2008
• Deposit Date: Jun 17, 2019
• Pages: 308-312
• Series Title: PIERS Proceedings
• Series ISSN: 1559-9450
• Book Title: Progress in Electromagnetics Research Symposium 2008 (PIERS 2008 Cambridge)
• ISBN: 9781618390547
• Keywords: antenna design; genetic algorithms; near field imaging
• Public URL: http://researchrepository.napier.ac.uk/Output/1885876