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Investigation of transformer turns ratio between feed and slot of aperture coupled slot antenna by using s11 parameter. (2013)
Journal Article
Liu, L., Ghassemlooy, Z., Sambell, A., Danaher, S., & Smith, D. (2013). Investigation of transformer turns ratio between feed and slot of aperture coupled slot antenna by using s11 parameter. IEEE Transactions on Antennas and Propagation, 61, 5785-5787. https://doi.org/10.1109/TAP.2013.2275745

This communication presents a simplified design approach to obtain the turns ratio nf which models the coupling between the microstrip feed and slot line of an aperture coupled slot antenna by using the S11 parameter. Equations are derived using S11... Read More about Investigation of transformer turns ratio between feed and slot of aperture coupled slot antenna by using s11 parameter..

Investigation of the equivalent circuit parameters and design of a dual polarised dual frequency aperture coupled microstrip antenna. (2013)
Journal Article
Liu, L., Korolkiewicz, E., Ghassemlooy, Z., Sambell, A., Danaher, S., & Busawon, K. (2013). Investigation of the equivalent circuit parameters and design of a dual polarised dual frequency aperture coupled microstrip antenna. IEEE Transactions on Antennas and Propagation, 61, 2304-2308. https://doi.org/10.1109/TAP.2013.2241716

This communication presents a simplified approach to the design of a single feed dual polarised, dual frequency (1.9 and 2.4 GHz) aperture coupled microstrip antenna. Using simulation and practical investigation, the coupling between the microstrip f... Read More about Investigation of the equivalent circuit parameters and design of a dual polarised dual frequency aperture coupled microstrip antenna..

Application of genetic algorithm to design of sequentially rotated circularly polarised dual-feed microstrip patch antenna array. (2008)
Journal Article
Aljibouri, B., Sambell, A., & Sharif, B. S. (2008). Application of genetic algorithm to design of sequentially rotated circularly polarised dual-feed microstrip patch antenna array. Electronics Letters, 44, 708. https://doi.org/10.1049/el%3A20080947

A design procedure for a circularly polarised 2 times 2 patch antenna array is presented. The structure involves 22 design parameters with associated constraints, and a multi-objective genetic algorithm is developed to determine the parameter values.... Read More about Application of genetic algorithm to design of sequentially rotated circularly polarised dual-feed microstrip patch antenna array..

Application of segmentation analysis to a matched U-slot patch antenna (2008)
Journal Article
Lee, S. K., Ooi, S. . F., Sambell, A., Korolkiewicz, E., & Scott, S. (2008). Application of segmentation analysis to a matched U-slot patch antenna. Microwave and Optical Technology Letters, 50, 2608-2611. https://doi.org/10.1002/mop.23743

A wide impedance matching bandwidth or multi-band response can be obtained using a single layer U-slot rectangular antenna with a probe feed. However, the determination of the input impedance of this antenna has not been reported. In this letter usin... Read More about Application of segmentation analysis to a matched U-slot patch antenna.

Evaluating assessment strategies through collaborative evidence‐based practice: can one tool fit all? (2008)
Journal Article
McDowell, L., Smailes, J., Sambell, K., Sambell, A., & Wakelin, D. (2008). Evaluating assessment strategies through collaborative evidence‐based practice: can one tool fit all?. Innovations in Education and Teaching International, 45(2), 143-153. https://doi.org/10.1080/14703290801950310

This paper reports on a collaborative project to improve assessment undertaken by a cross discipline group of university lecturers (Business, Engineering and Psychology) using action research methodology. First-stage analysis was based on results fro... Read More about Evaluating assessment strategies through collaborative evidence‐based practice: can one tool fit all?.

Supporting diverse students : developing learner autonomy via assessment (2006)
Book Chapter
Sambell, K., McDowell, L., & Sambell, A. (2006). Supporting diverse students : developing learner autonomy via assessment. In C. Bryan, & K. Clegg (Eds.), Innovative assessment in higher education (158-168). Routledge

This chapter focuses on two case studies in which lecturers aimed to use assessment as a pedagogic technique to foster learner autonomy. Analysis of the student viewpoint is used to highlight some of the issues that surround the use of assessment to... Read More about Supporting diverse students : developing learner autonomy via assessment.

Using computer-aided assessment (1999)
Book Chapter
Sambell, K., Sambell, A., & Sexton, G. (1999). Using computer-aided assessment. In L. McDowell (Ed.), Using Information Technology in Teaching, Learning & Assessment. Northumbria University, MARCET

No abstract available.