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Callaghan, Peter, Huelin, Robin and Sagor, Md. Hasanuzzaman (2016) Double-layer grid filter for control of wireless signal propagation within buildings. In: 2015 Loughborough Antennas & Propagation Conference (LAPC). IEEE, pp. 25-29. ISBN 978-1-4799-8944-7 (doi:https://doi.org/10.1109/LAPC.2015.7366030)

Sagor, Md Hasanuzzaman and Callaghan, Peter (2014) Benefits of active transmit balanced antenna fed by differential power amplifier. In: 2014 Loughborough Antennas and Propagation Conference (LAPC). Institute of Electrical and Electronics Engineers Inc., Piscataway, NJ, USA, pp. 732-735. ISBN 9781479936625 (doi:https://doi.org/10.1109/LAPC.2014.6996499)

Sagor, Md. Hasanuzzaman (2014) Differentially fed active antennas. PhD thesis, University of Greenwich.

Callaghan, Peter and Sagor, Md. Hasanuzzaman (2014) Measurement of Antenna Radiation Pattern using Injection Locking Technique. In: The 8th European Conference on Antennas and Propagation (EuCAP 2014). IEEE, Den Haag World Forum, The Hague, The Netherland, pp. 1066-1069. ISBN 978-88-907018-4-9 (doi:https://doi.org/10.1109/EuCAP.2014.6901952)

Callaghan, Peter, Sagor, Md. Hasanuzzaman and Batchelor, John C. (2011) Control of ground plane influence on antenna radiation pattern for mobile handheld devices. In: 2011 Loughborough Antennas and Propagation Conference (LAPC). Institute of Electrical and Electronics Engineers, Inc., Piscataway, NJ, USA, pp. 1-4. ISBN 978-1-4577-1014-8 (doi:https://doi.org/10.1109/LAPC.2011.6114127)