Compact reflectometers for a wideband microwave breast cancer detection system
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 i...
| Main Authors: | , , , |
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| Format: | Article |
| Published: |
2006
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| Online Access: | http://eprints.utm.my/8066/ |
| _version_ | 1848891610911211520 |
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| author | Bialkowski, Marek Seman, Norhudah Abbosh, Amin Wee, Chang Khor |
| author_facet | Bialkowski, Marek Seman, Norhudah Abbosh, Amin Wee, Chang Khor |
| author_sort | Bialkowski, Marek |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | 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 |
| first_indexed | 2025-11-15T21:00:43Z |
| format | Article |
| id | utm-8066 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T21:00:43Z |
| publishDate | 2006 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-80662017-10-11T08:22:39Z http://eprints.utm.my/8066/ Compact reflectometers for a wideband microwave breast cancer detection system Bialkowski, Marek Seman, Norhudah Abbosh, Amin Wee, Chang Khor TK Electrical engineering. Electronics Nuclear engineering 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 2006 Article PeerReviewed Bialkowski, Marek and Seman, Norhudah and Abbosh, Amin and Wee, Chang Khor (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 http://epress.lib.uts.edu.au/ojs/index.php/ajict/article/view/E1I2122006021 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Bialkowski, Marek Seman, Norhudah Abbosh, Amin Wee, Chang Khor Compact reflectometers for a wideband microwave breast cancer detection system |
| title | Compact reflectometers for a wideband microwave breast cancer detection system |
| title_full | Compact reflectometers for a wideband microwave breast cancer detection system |
| title_fullStr | Compact reflectometers for a wideband microwave breast cancer detection system |
| title_full_unstemmed | Compact reflectometers for a wideband microwave breast cancer detection system |
| title_short | Compact reflectometers for a wideband microwave breast cancer detection system |
| title_sort | compact reflectometers for a wideband microwave breast cancer detection system |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.utm.my/8066/ http://eprints.utm.my/8066/ |