Items where Author is "Sambell, Alistair"

Liu, Lei, Ghassemlooy, Zabih, Sambell, Alistair, Danaher, Sean and Smith, Dave (2013) Investigation of Transformer Turns Ratio Between Feed and Slot of Aperture Coupled Slot Antenna by Using S-11 Parameter. IEEE Transactions on Antennas and Propagation, 61 (11). pp. 5785-5787. ISSN 1558-2221

Liu, Lei, Korolkiewicz, Edward, Ghassemlooy, Zabih, Sambell, Alistair, Danaher, Sean and Busawon, Krishna (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 (4). pp. 2304-2308. ISSN 0018-926X

Liu, Lei, Korolkiewicz, Edward, Ghassemlooy, Zabih, Sambell, Alistair, Danaher, Sean and Lu, Qing (2012) Effect of losses in an active device and harmonic network on the efficiency of Class F and inverse Class F power amplifiers. In: EFEA 2012: 2nd International Symposium on Environment Friendly Energies and Applications, 25-27 July 2012, Northumbria University, Newcastle upon Tyne, UK.

Liu, Lei, Ghassemlooy, Zabih, Sambell, Alistair, Danaher, Sean, Lu, Qing and Korolkiewicz, Edward (2011) Investigation of transformers’ turn ratios and design procedure for an aperture coupled slot antenna. In: IET 'Active RF Devices, Circuits and Systems' Seminar, 12 September 2011, Belfast, Northern Ireland.

Lu, Qing, Liu, Lei, Danaher, Sean, Korolkiewicz, Edward, Ghassemlooy, Zabih and Sambell, Alistair (2011) Modelling of losses in load harmonic networks of high efficient class E power amplifier. In: IET 'Active RF Devices, Circuits and Systems' Seminar, 12 September 2011, Belfast, Northern Ireland.

Lu, Qing, Sambell, Alistair, Danaher, Sean, Korolkiewicz, Edward, Ghassemlooy, Zabih, Liu, Lei and Dehao, Wu (2010) The effect of the turn ‘On’ resistance of an active device and the Q factor of the load harmonic network on the efficiency and efficiency bandwidth of a class E amplifier. In: Proceedings of the 7th International Symposium on Communication Systems Networks and Digital Signal Processing (CSNDSP). IEEE, Piscataway, NJ, pp. 106-110. ISBN 978-1424488582

Jiang, Yuanyuan, Foti, Steve, Sambell, Alistair and Smith, Dave (2010) A low profile radiating element with nearly hemispheric coverage for satellite communications on-the-move hybrid array antenna. In: 7th International Symposium on Communication Systems Networks and Digital Signal processing (CSNDSP), 21-23 July 2010, Northumbria University, Newcastle upon Tyne.

Liu, Lei, Lu, Qing, Wu, Dehao, Sambell, Alistair and Korolkiewicz, Edward (2010) Determination of the transformers turn ratios and design of a circular polarised cross slot coupled antenna. In: CSNDSP 2010: 7th International Symposium on Communication Systems, Networks and Digital Signal Processing, 21-23 July 2010, Northumbria University, Newcastle upon Tyne, UK.

Lu, Qing, Sambell, Alistair, Ghassemlooy, Zabih and Danaher, Sean (2010) Comparison of the return loss and axial ratio for circular polarised square patch antenna using two branch and ring coupler feeds. In: PGNet 2010: The 11th Annual Postgraduate Symposium on The Convergence of Telecommunications, Networking and Broadcasting, 21-22 June 2010, Liverpool, UK.

Pickard, Alison, Sambell, Alistair and Beautyman, Wendy (2010) Information PALs: Engaging students in peer assisted Information Literacy guidance. In: Student Engagement - How does that work?, 15 April 2010, Northumbria University, Newcastle upon Tyne, UK.

Strachan, Rebecca, Pickard, Alison, Sambell, Alistair, Beautyman, Wendy and Bryson, Craig (2010) Learning through peer assessment and support – It’s good for you! In: EARLI/Northumbria Assessment Conference 2010, 1 - 3 September 2010, Slaley Hall Hotel, Northumberland, UK.

Jiang, Yuanyuan, Foti, Steve and Sambell, Alistair (2009) A novel louvered array element geometry and spatial filter / "ray-bending" lens for a low profile satellite communications on-the-move hybrid phased array antenna. In: 10th Annual Graduate Symposium on the Convergence of Telecommunications, Networking and Broadcasting (PGNET09), 22-23 June 2009, Holiday Inn, Liverpool, UK.

Lu, Qing, Korolkiewicz, Edward, Danaher, Sean, Ghassemlooy, Zabih and Sambell, Alistair (2009) Optimum design of a probe fed dual frequency patch antenna using genetic algorithm. In: Proceedings of the ARMMS RF and Microwave Society, 20-21 April 2010, Rockingham Forest Hotel, Corby, UK.

Pickard, Alison, Sambell, Alistair, Beautyman, Wendy, Glendinning, L. and Stocker, M. (2009) ‘Information PALs’: using peer assisted learning to embed information literacy in the curriculum: stage 1 discovery through the student voice. In: Northumbria Conference 2009: The student voice, 8th September 2009, Seaton Burn, UK.

Jiang, Yuanyuan, Foti, Steve, Sambell, Alistair and Smith, Dave (2009) A new low profile antenna with improved performance for satellite on-the-move communications. In: 3rd IEEE International Symposium on Microwave Antenna, Propagation and EMC Technologies for Wireless Communications, 27-29 October 2009, Jingyan Hotel, Beijing, China.

Lee, Sin, Ooi, Shirt Fun, Sambell, Alistair, Korolkiewicz, Edward and Scott, S. (2008) Application of segmentation analysis to a matched U-slot patch antenna. Microwave and Optical Technology Letters, 50 (10). pp. 2608-2611. ISSN 0895-2477

Al-Jibouri, Belal, Sambell, Alistair and Sharif, Bayan (2008) Application of genetic algorithm to design of sequentially rotated circularly polarised dual-feed microstrip patch antenna array. Electronics Letters, 44 (12). p. 708. ISSN 0013-5194

McDowell, Liz, Smailes, Joanne, Sambell, Kay, Sambell, Alistair and Wakelin, Delia (2008) Evaluating assessment strategies through collaborative evidence‐based practice: can one tool fit all? Innovations in Education and Teaching International, 45 (2). pp. 143-153. ISSN 1470-3297

Ooi, Shirt Fun, Lee, Sin, Sambell, Alistair, Korolkiewicz, Edward and Scott, S. (2008) A new approach to the design of a compact high efficiency active integrated antenna. Microwave and Optical Technology Letters, 50 (3). pp. 585-589. ISSN 0895-2477

Ooi, Shirt Fun, Lee, Sin, Sambell, Alistair, Korolkiewicz, Edward, Gao, Steven and Butterworth, P. (2007) Harmonic-suppressed slot-coupled microstrip patch antenna with enhanced bandwidth. Microwave and Optical Technology Letters, 49 (8). pp. 1827-1829. ISSN 0895-2477

Ooi, Shirt Fun, Lee, Sin, Sambell, Alistair, Korolkiewicz, Edward and Scott, S. (2007) A new and explicit matrix input impedance formula for the H-shaped microstrip patch antenna. Microwave and Optical Technology Letters, 49 (7). pp. 1756-1759. ISSN 0895-2477

Ooi, Shirt Fun, Lee, Sin, Sambell, Alistair, Korolkiewicz, Edward and Butterworth, P. (2007) Design of a high efficiency power amplifier with input and output harmonic terminations. Microwave and Optical Technology Letters, 49 (2). pp. 391-395. ISSN 0895-2477

Ooi, Shirt Fun, Lee, Sin, Sambell, Alistair, Korolkiewicz, Edward and Scott, S. (2007) Design of H-shaped microstrip patch antennas. Microwave and Optical Technology Letters, 49 (4). pp. 791-795. ISSN 0895-2477

Lee, Sin, Ooi, Shirt Fun, Lim, Eng G., Korolkiewicz, Edward and Sambell, Alistair (2007) Explicit efficient coupling impedance formulas for the right-angled isosceles triangle and application to a circularly polarised truncated corners square patch antenna. IET Microwaves, Antennas & Propagation, 1 (5). pp. 1013-1019. ISSN 1751-8725

Qin, Yi, Gao, Steven and Sambell, Alistair (2006) Broadband high-efficiency circularly polarized active antenna and array for RF front-end application. IEEE Transactions on Microwave Theory and Techniques, 54 (7). pp. 2910-2916. ISSN 0018-9480

McDowell, Liz, Sambell, Alistair and Sambell, Kay (2006) Supporting diverse students : developing learner autonomy via assessment. In: Innovative Assessment in Higher Education. Routledge, London, pp. 158-168. ISBN 978-0415356428

Qin, Yi, Gao, Steven, Elsdon, Michael and Sambell, Alistair (2005) Broadband high efficiency circularly polarized active integrated antenna. In: APMC 2005: 17th Asia-Pacific Microwave Conference, 4th - 7th December 2005, Suzhou, China.

Qin, Yi, Gao, Steven, Sambell, Alistair, Elsdon, Michael and Korolkiewicz, Edward (2005) Design of a broadband square-ring-slot coupled patch antenna. Microwave and Optical Technology Letters, 47 (5). pp. 454-457. ISSN 0895-2477

Elsdon, Michael, Sambell, Alistair and Qin, Yi (2005) Reduced size direct planar-fed patch antenna. Electronics Letters, 41 (16). pp. 884-886. ISSN 0013 5194

Gao, Steven and Sambell, Alistair (2005) Dual-polarized broad-band microstrip antennas fed by proximity coupling. IEEE Transactions on Antennas and Propagation, 53 (1). pp. 526-530. ISSN 0018-926X

Gao, Steven and Sambell, Alistair (2004) Low-cost dual-polarized printed array with broad bandwidth. IEEE Transactions on Antennas and Propagation, 52 (12). pp. 3394-3397. ISSN 0018-926X

Smith, Dave, Gao, Steven, Ooi, Shirt Fun and Sambell, Alistair (2004) A high efficiency class-F power amplifier design technique. Microwave Journal (11). ISSN 0026-2897

Elsdon, Michael, Sambell, Alistair, Gao, S. C. and Qin, Yi (2004) Planar-fed compact circular-polarised microstrip antenna with triangular-slot loading. Microwave and Optical Technology Letters, 41 (3). pp. 226-228. ISSN 0895-2477

Qin, Yi, Gao, Steven, Sambell, Alistair, Korolkiewicz, Edward and Elsdon, Michael (2004) Broadband patch antenna with ring slot coupling. Electronics Letters, 40 (1). pp. 5-6. ISSN 0013-5194

Gao, S. C., Sambell, Alistair, Korolkiewicz, T. and Smith, Dave (2003) A broadband microstrip antenna: SGMFP antenna. Microwave and Optical Technology Letters, 39 (3). pp. 175-178. ISSN 0895 2477

Elsdon, Michael, Sambell, Alistair, Gao, Steven and Qin, Yi (2003) Compact circular polarised patch antenna with relaxed manufacturing tolerance and improved axial ratio bandwidth. Electronics Letters, 39 (18). pp. 1296-1298. ISSN 0013 5194

Smith, Dave, Leach, Mark and Sambell, Alistair (2003) Microwave indirect holographic imaging using an adaptation of optical techniques. IEEE Microwave and Wireless Components Letters, 13 (9). pp. 379-381. ISSN 1531-1309

Smith, Dave, Leach, Mark and Sambell, Alistair (2002) An indirect holographic method for determining antenna radiation patterns and imaging antenna fields. IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), 3. pp. 706-709. ISSN 1522 3965

Al-Jibouri, Belal, Sambell, Alistair, Evans, H. and Korolkiewicz, Edward (2001) Cavity model of circularly polarised cross-aperture-coupled microstrip antenna. IEE Proceedings - Microwaves Antennas and Propagation, 148 (3). p. 147. ISSN 1350-2417