Ogbodo, Eugene, Wu, Yun, Callaghan, Peter and Wang, Yi (2017) Asynchronously coupled resonant junctions for diplexers and multiport filtering networks. Microwave and Optical Technology Letters, 59 (12). pp. 3046-3051. ISSN 0895-2477 (Print), 1098-2760 (Online) (doi:10.1002/mop.30877)

Ogbodo, Eugene A., Wu, Yun, Callaghan, Peter and Wang, Yi (2017) A compact diplexer with a split-ring resonator junction. Microwave and Optical Technology Letters, 59 (9). pp. 2385-2390. ISSN 0895-2477 (Print), 1098-2760 (Online) (doi:10.1002/mop.30740)

Callaghan, Peter, Sagor, Md. Hasanuzzaman and Huelin, Robin (2016) Investigation into use of double-layer grid structures as frequency selective surfaces for buildings. IET Microwaves, Antennas & Propagation, 10 (13). pp. 1372-1377. ISSN 1751-8725 (Print), 1751-8733 (Online) (doi:10.1049/iet-map.2016.0065)

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: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:10.1109/LAPC.2014.6996499)

Ali, M. Tanseer, Wu, Ruiheng, Mao, Luhong, Callaghan, Peter and Rapajic, Predrag (2014) High frequency CMOS amplifier with improved linearity. IET Circuits, Devices & Systems, 8 (6). pp. 450-458. ISSN 1751-858X (Print), 1751-8598 (Online) (doi:10.1049/iet-cds.2013.0327)

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:10.1109/EuCAP.2014.6901952)

Ali, M. Tanseer, Wu, Ruiheng, Callaghan, Peter and Rapajic, Predrag (2014) Highly linear RF amplifier design: theoretical analysis and experimental study. International Journal of Electronics, 101 (1). pp. 98-112. ISSN 0020-7217 (Print), 1362-3060 (Online) (doi:10.1080/00207217.2013.769189)

Ali, M. Tanseer, Wu, Ruiheng, Callaghan, Peter and Rapajic, Predrag (2012) Experimental study of a highly linear amplifier using negative impedance compensation technique. In: Active RF Devices, Circuits and Systems Seminar. IET Conference Publications . IET, pp. 35-38. ISBN 978-1849195409 (doi:10.1049/ic.2011.0211)

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:10.1109/LAPC.2011.6114127)

Ali, M. Tanseer, Wu, Ruiheng, Callaghan, Peter and Rapajic, Predrag (2011) Design of a highly linear high frequency amplifier using Volterra model. In: Microwave, Antenna, Propagation, and EMC Technologies for Wireless Communications (MAPE). Microwave, Antenna, Propagation, and EMC Technologies for Wireless Communications (MAPE) . Institute of Electrical and Electronic Engineers, Pistacaway, USA, pp. 355-358. ISBN 978-1-4244-8268-9 (doi:10.1109/MAPE.2011.6156259)

Callaghan, Peter, Gomes, Nathan J., Batchelor, John C. and Formont, Stephane (2009) Experimental investigation of an optically fed phase array for UWB personal area networks. In: International Topical Meeting on Microwave Photonics, 2009. MWP '09. Universidad Politécnica de Valencia, Valencia, Spain. ISBN 978-1-4244-4788-6

Callaghan, Peter and Batchelor, John C. (2008) Dual-band pin-patch antenna for wi-fi applications. IEEE Antennas and Wireless Propagation Letters, 7. pp. 757-760. ISSN 1536-1225 (doi:10.1109/LAWP.2008.2004885)

Callaghan, Peter and Batchelor, John C. (2008) Multiband low-profile antenna for remote antenna unit picocell applications. IEEE Transactions on Antennas and Propagation, 56 (8). pp. 2475-2480. ISSN 0018-926X (doi:10.1109/TAP.2008.927558)