Universiti Teknologi Malaysia Institutional Repository

Compact reflectometers for a wideband microwave breast cancer detection system

Tsuboi, Yusei and Ibrahim, Zuwairie and Ono, Osamu (2006) Compact reflectometers for a wideband microwave breast cancer detection system. African Journal of Information & Communication Technology, 2 (3). pp. 119-124. ISSN 1449-2679

Full text not available from this repository.

Official URL: http://epress.lib.uts.edu.au/ojs/index.php/ajict/a...

Abstract

The design of compact wideband microwave reflectometers for the purpose of inclusion in a breast cancer detection system is presented. In this system, a wideband frequency source is used to synthesize a narrow pulse via the step-frequency synthesis method. The reflectometer undertakes measurements in the frequency domain and the collected data is transformed into the time/space domain using IFFT. In order to accomplish reflection coefficient measurements over a large frequency band, compact wideband couplers and power dividers are used to form the reflectometer. Two compact six-port reflectometer configurations are investigated. One uses the Lange coupler and the Gysel power divider and the other one employs a 3dB slot-coupled microstrip coupler and a 2-stage Wilkinson power divider. The reflectometer employing the slot-coupled coupler and the Wilkinson divider provides a wider operational bandwidth, as shown by simulation results performed with Agilent ADS

Item Type:Article
Uncontrolled Keywords:wideband microwave reflectometers, slot-coupled coupler
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:8066
Deposited By:INVALID USER
Deposited On:25 Mar 2009 07:33
Last Modified:01 Apr 2009 08:39

Repository Staff Only: item control page