Dr Khalid RajabLecturerEmail: s.rajab@qmul.ac.ukRoom Number: Engineering, Eng E205Office Hours: Thursday 14:00-15:00, Tuesday 09:00-10:00, Thursday 09:00-10:00ResearchPublicationsResearchResearch Interests:I am interested in all aspects of science related to the world around us, and modern technologies. My current research interests include:- Metamaterials & transformation optics (particularly active/nonlinear materials) Active, reconfigurable and tuneable materials and systems Microwave, millimetrewave and terahertz physics & devices Computational electromagnetics & multiphysics Plasmonics & nanoantennas The physics of the natural world Publications Yu Z, Taha A, Taylor W et al. (2022). A Radar-Based Human Activity Recognition Using a Novel 3-D Point Cloud Classifier. nameOfConference DOI: 10.1109/jsen.2022.3198395 QMRO: qmroHref Rajab KZ, Wu B, Alizadeh P et al. (2021). Multi-target tracking and activity classification with millimeter-wave radar. nameOfConference DOI: 10.1063/5.0055641 QMRO: qmroHref Paredes JA, Álvarez FJ, Hansard M et al. (2021). A Gaussian Process model for UAV localization using millimetre wave radar. nameOfConference DOI: 10.1016/j.eswa.2021.115563 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/73597 Paredes JA, Hansard M, Rajab KZ et al. (2021). Drone Positioning From Combined mmWave Radar and Depth Camera Data. nameOfConference DOI: doi QMRO: qmroHref Mishra S, Rammohan S, Rajab KZ et al. (publicationYear). Atrial Fibrillation Stratification Via Super-Resolution Analysis of Fibrillatory Waves. 2019 Computing in Cardiology Conference (CinC) DOI: 10.22489/cinc.2019.353 QMRO: qmroHref Farooq H, Rajab KZ, Hao Y (2019). Noise figure of electromagnetic systems with parity and time-reversal symmetry. nameOfConference DOI: 10.1364/OE.27.031363 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/70561 Mishra S, Rammohan S, Rajab KZ et al. (2019). Atrial Fibrillation Stratification Via Super-Resolution Analysis of Fibrillatory Waves. nameOfConference DOI: 10.23919/CinC49843.2019.9005797 QMRO: qmroHref Farooq H, Nagarkoti DS, Rajab KZ et al. (2019). Noise Figure of a Unidirectional Cloaking Circuit Based on Parity-Time Symmetry. nameOfConference DOI: doi QMRO: qmroHref FALADE OP, JILANI SFJ, RAJAB S et al. (publicationYear). Design and characterisation of a screen-printed millimetre-wave flexible metasurface using copper ink for communication applications. nameOfConference DOI: 10.1088/2058-8585/aaf0eb QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/53528 Aziz AK, Zhang L, Hao Y et al. (2018). Ultrashort pulse synthesis for energy concentration control in nanostructures.. nameOfConference DOI: 10.1364/oe.26.025188 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/45924 Aziz AK, Jilani SF, Alomainy A et al. (2018). High Sensitivity Inkjet-Printed Terahertz Metallic Hole Array Sensor. 12th European Conference on Antennas and Propagation (EuCAP 2018) DOI: 10.1049/cp.2018.0499 QMRO: qmroHref Yang L, Tian J, Rajab KZ et al. (2017). FDTD Modeling of Nonlinear Phenomena in Wave Transmission through Graphene. nameOfConference DOI: 10.1109/LAWP.2017.2777530 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/31446 Alizadeh P, Parini CG, Rajab KZ (2017). Optically reconfigurable unit cell for Ka‐band reflectarray antennas. nameOfConference DOI: 10.1049/el.2017.1866 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/30985 Tian J, Nagarkoti DS, Rajab KZ et al. (publicationYear). High-Impedance Surface Loaded With Graphene Non-Foster Circuits for Low-Profile Antennas. nameOfConference DOI: 10.1109/lawp.2017.2740162 QMRO: qmroHref YANG L, Rajab SAYID-KHALID, Chew E (2017). Filter Diagonalisation Method for Music Signal Analysis: Frame-wise Vibrato Detection and Estimation. nameOfConference DOI: 10.1080/17459737.2016.1263897 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/18242 Nagarkoti DS, Rajab KZ, Hao Y (2017). Non-Foster Impedance Design Techniques for High Performance Small Antenna. 2017 11th European Conference on Antennas and Propagation (EUCAP) DOI: 10.23919/eucap.2017.7928519 QMRO: qmroHref Bao D, Rajab KZ, Jiang WX et al. (2016). Experimental demonstration of compact spoof localized surface plasmons.. nameOfConference DOI: 10.1364/ol.41.005418 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/17999 Li W, Rajab KZ, Alhoefer K et al. (2016). Broadband Matching of Nuclear Quadrupole Resonance Detector Using Non-Foster Circuits. 2016 Loughborough Antennas & Propagation Conference (LAPC) DOI: 10.1109/lapc.2016.7807589 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/22286 Alizadeh P, Parini C, Rajab KZ (2016). A Ka-Band Reflectarray with Variable Amplitude Unit Cells. 2016 46th European Microwave Conference (EuMC) DOI: 10.1109/eumc.2016.7824588 QMRO: qmroHref YANG L, Rajab SAYID-KHALID, Chew E (2016). AVA: A Graphical User Interface for Automatic Vibrato and Portamento Detection and Analysis. the 42nd International Computer Music Conference DOI: doi QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/16058 YANG L, Rajab SAYID-KHALID, Chew E (2016). AVA: An Interactive System for Visual and Quantitative Analyses of Vibrato and Portamento Performance Styles. the 17th International Society for Music Information Retrieval Conference DOI: doi QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/16059 Tian J, Nagarkoti DS, Rajab KZ et al. (2016). Graphene-based tunable non-foster circuit for VHF applications. nameOfConference DOI: 10.1063/1.4953354 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/23611 Nagarkoti DS, Hao Y, Rajab KZ (2016). Radiation-Q Bound of a Small Non-Foster Antenna. 2016 IEEE International Symposium on Antennas and Propagation (APSURSI) DOI: 10.1109/aps.2016.7695802 QMRO: qmroHref Nagarkoti DS, Hao Y, Rajab KZ (2016). Signal to Noise Ratio Improvement with Non-Foster Antenna Matching. 2016 IEEE International Symposium on Antennas and Propagation (APSURSI) DOI: 10.1109/aps.2016.7696358 QMRO: qmroHref Fan Y, Nagarkoti DS, Rajab KZ et al. (2016). Wave propagation in reconfigurable broadband gain metamaterials at microwave frequencies. nameOfConference DOI: 10.1063/1.4949553 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/13553 ANDY A, Alizadeh P, Rajab KZ et al. (2016). An Optically-Switched Frequency Reconfigurable Antenna for Cognitive Radio Applications. 10th European Conference on Antennas and Propagation (EuCAP) DOI: 10.1109/EuCAP.2016.7481573 QMRO: qmroHref Alizadeh P, Andy AS, Parini C et al. (2016). A Reconfigurable Reflectarray Antenna in Ka-Band Using Optically Excited Silicon. 2016 10th European Conference on Antennas and Propagation (EuCAP) DOI: 10.1109/eucap.2016.7481611 QMRO: qmroHref Nagarkoti DS, Hao Y, Rajab KZ (2016). Q-Bandwidth Enhancement of an Antenna Using Non-Foster Circuit Based on Negative Differential Resistance Devices. 2016 10th European Conference on Antennas and Propagation (EuCAP) DOI: 10.1109/eucap.2016.7481570 QMRO: qmroHref Nagarkoti DS, Hao Y, Steenson DP et al. (2015). Design of Broadband Non-Foster Circuits Based on Resonant Tunneling Diodes. nameOfConference DOI: 10.1109/LAWP.2015.2510654 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/31980 Alizadeh P, Parini C, Rajab KZ (2015). A Low-cost FMCW Radar Front End for Imaging at 24 GHz 33 GHz. 2015 Loughborough Antennas & Propagation Conference (LAPC) DOI: 10.1109/lapc.2015.7366007 QMRO: qmroHref Nagarkoti DS, Hao Y, Rajab KZ (2015). Noise measurements of a non-Foster circuit for matching of a receiver antenna. nameOfConference DOI: doi QMRO: qmroHref Nagarkoti DS, Alizadeh P, Hao Y et al. (2015). Stability Analysis of Resonant Tunnelling Diode for Resistive Matching of an Electrically Small Antenna. 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting DOI: 10.1109/aps.2015.7305167 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/12061 Yang L, Chew E, Rajab KZ (2015). Logistic Modeling of Note Transitions. nameOfConference DOI: 10.1007/978-3-319-20603-5_16 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/16052 Rajab K (2014). Nanoplasmonics for Ultrafast Coherent Control of Optical Fields. nameOfConference DOI: 10.21236/ada611573 QMRO: qmroHref Nagarkoti DS, Rajab KZ, Hao Y (2014). Design and Stability of Negative Impedance Circuits for Non-Foster Matching of a Monopole Antenna. The 8th European Conference on Antennas and Propagation (EuCAP 2014) DOI: 10.1109/eucap.2014.6902383 QMRO: qmroHref Fan Y, Rajab KZ, Hao Y (2013). Noise power in active broadband metamaterials. nameOfConference DOI: 10.1109/APS.2013.6711249 QMRO: qmroHref YANG L, Chew E, Rajab SAYID-KHALID (2013). Vibrato Performance Style: A Case Study Comparing Erhu and Violin. the 10th International Conference on Computer Music Multidisciplinary Research DOI: doi QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/16060 Rajab KZ, Fan Y, Hao Y (2013). Recent Advances in Practical Metamaterial Engineering. nameOfConference DOI: 10.4071/cicmt-wa15 QMRO: qmroHref Fan Y, Rajab KZ, Hao Y (2013). Noise analysis of broadband active metamaterials with non-Foster loads. nameOfConference DOI: 10.1063/1.4811437 QMRO: qmroHref Fan Y, Rajab KZ, Hao Y (2013). Noise figure of broadband active metamaterials. nameOfConference DOI: 10.34385/proc.30.23pm2a-02 QMRO: qmroHref Bao D, Mitchell-Thomas RC, Rajab KZ et al. (2013). Quantitative Study of Two Experimental Demonstrations of a Carpet Cloak. nameOfConference DOI: 10.1109/LAWP.2013.2245294 QMRO: qmroHref Rajab KZ, Fan Y, Hao Y (2013). Recent advances in practical metamaterial engineering. nameOfConference DOI: doi QMRO: qmroHref Rajab KZ, Munoz M, Fan Y et al. (2012). Recent advances in practical metamaterial engineering. nameOfConference DOI: doi QMRO: qmroHref Rajab KZ, Munoz M, Fan Y et al. (2012). Recent Advances in Practical Metamaterial Engineering. nameOfConference DOI: 10.4071/cicmt-2012-tp23 QMRO: qmroHref Fan Y, Raiab KZ, Munoz M et al. (2012). Electrically Small Half-Loop Antenna Design with Non-Foster Matching Networks. 2012 6th European Conference on Antennas and Propagation (EUCAP) DOI: 10.1109/eucap.2012.6206602 QMRO: qmroHref Bao D, Rajab KZ, Tang W et al. (2012). Experimental Demonstration of Carpet Cloak Realized with BaTiO3-loaded Polyurethane Foam. 2012 6th European Conference on Antennas and Propagation (EUCAP) DOI: 10.1109/eucap.2012.6206666 QMRO: qmroHref Rajab KZ, Fan YF, Hao Y (2012). Characterization of active metamaterials based on negative impedance converters. nameOfConference DOI: 10.1088/2040-8978/14/11/114004 QMRO: qmroHref Katsounaros A, Mann M, Naftaly M et al. (2012). Terahertz time-domain spectroscopy characterisation of vertically aligned carbon nanotube films. nameOfConference DOI: 10.1016/j.carbon.2011.09.056 QMRO: qmroHref Katsounaros A, Rajab KZ, Hao Y et al. (2011). Microwave characterization of multi-walled carbon nanotube arrays. nameOfConference DOI: doi QMRO: qmroHref Bao D, Rajab KZ, Hao Y et al. (2011). All-dielectric invisibility cloaks made of BaTiO3-loaded polyurethane foam. nameOfConference DOI: 10.1088/1367-2630/13/10/103023 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/7342 Katsounaros A, Rajab KZ, Hao Y et al. (2011). X-band Characterization of Multi-Walled Carbon Nanotube Films. 2011 International Conference on Electromagnetics in Advanced Applications DOI: 10.1109/iceaa.2011.6046394 QMRO: qmroHref Bao D, Rajab KZ, Tang W et al. (2011). Broadband extraordinary transmission device realized with dielectrics. nameOfConference DOI: doi QMRO: qmroHref Katsounaros A, Rajab KZ, Hao Y et al. (2011). Microwave characterization of vertically aligned multiwalled carbon nanotube arrays. nameOfConference DOI: 10.1063/1.3592263 QMRO: qmroHref Rajab KZ, Fan Y, Bao D et al. (2011). Active Circuits for Improved Metamaterial Performance. 2011 International Workshop on Antenna Technology (iWAT) DOI: 10.1109/iwat.2011.5752373 QMRO: qmroHref Bao D, Rajab KZ, Tang WX et al. (2010). Experimental demonstration of broadband transmission through subwavelength aperture. nameOfConference DOI: 10.1063/1.3495995 QMRO: qmroHref Rajab KZ, Hao Y, Bao D et al. (2010). Stability of active magnetoinductive metamaterials. nameOfConference DOI: 10.1063/1.3476464 QMRO: qmroHref Rajab KZ, Hao Y, Bao D et al. (2010). Broadband Active Magnetic Materials. nameOfConference DOI: 10.1109/APS.2010.5560897 QMRO: qmroHref Katsounaros A, Rajab KZ, Hou K et al. (2010). Refractive Index Evaluation of Multi-Walled Carbon Nanotube Arrays. nameOfConference DOI: 10.1109/wcsp.2010.5633486 QMRO: qmroHref Rajab KZ, Dougherty JP, Lanagan MT (2009). Dielectric Properties at Millimeter‐Wave and THz Bands. nameOfConference DOI: 10.1002/9780470742969.ch3 QMRO: qmroHref Feteira A, Sinclair DC, Rajab KZ et al. (2008). Crystal structure and microwave dielectric properties of alkaline-earth hafnates, AHfO(3) (A = Ba, Sr, Ca). nameOfConference DOI: 10.1111/j.1551-2916.2007.02134.x QMRO: qmroHref Rajab KZ, Naftaly M, Linfield EH et al. (2008). Broadband Dielectric Characterization of Aluminum Oxide (Al2O3). nameOfConference DOI: 10.4071/1551-4897-5.1.1 QMRO: qmroHref Lanagan MT, Rajab K, Kwon DK et al. (2008). Ceramic Dielectric Materials for Microwave Resonator Arrays. nameOfConference DOI: 10.1109/ISAF.2008.4693749 QMRO: qmroHref Rajab KZ, Naftaly M, Linfield EH et al. (2007). Broadband dielectric characterization of aluminum oxide (Al 2O3). nameOfConference DOI: doi QMRO: qmroHref Rajab KZ, Mittra R, Naftaly M et al. (2007). Terahertz transmission through periodic arrays of dielectric and conducting spheres. 2007 IEEE Antennas and Propagation Society International Symposium DOI: 10.1109/aps.2007.4396805 QMRO: qmroHref Rajab KZ, Mittra R, Lanagan MT (2007). Size reduction of microstrip patch antennas with left-handed transmission line loading. nameOfConference DOI: 10.1049/ict-map:20050334 QMRO: qmroHref Rajab KZ, Mittra R, Naftaly M et al. (2007). Terahertz transmission through periodic arrays of dielectric and conducting sphere. nameOfConference DOI: doi QMRO: qmroHref Rajab KZ, Perini S, Dougherty J et al. (2006). Dielectric characterization of dielectric ceramic materials using terahertz time-domain spectroscopy. nameOfConference DOI: doi QMRO: qmroHref Rajab KZ, Mittra R, Lanagan M (2006). Phase verification of compact multilayered low temperature co-fired ceramic composite right-/left-handed transmission line. nameOfConference DOI: 10.1002/mop.21809 QMRO: qmroHref Iwasaki M, Semouchkina EA, Semouchkin GB et al. (2006). Symmetry matching of hybrid modes for dielectric metamaterials. nameOfConference DOI: 10.1143/JJAP.45.2835 QMRO: qmroHref Bringuier J, Mittra R, Rajab K et al. (2006). Size reduction of Microstrip Patch Antennas via Artificial Dielectric Loading. 2006 IEEE Antennas and Propagation Society International Symposium DOI: 10.1109/aps.2006.1710830 QMRO: qmroHref Mittra P, Bringuier J, Abdel-Mageed M et al. (2006). Some novel techniques for size reduction of microstrip patch antennas. nameOfConference DOI: 10.1109/IWAT.2006.1608999 QMRO: qmroHref Haney L, Lanagan M, Perini S et al. (2005). Characterization of dielectrics and conductors for ceramic microsystems at microwave frequency. nameOfConference DOI: doi QMRO: qmroHref Baker A, Lanagan M, Randall C et al. (2005). Integration concepts for the fabrication of LTCC structures. nameOfConference DOI: doi QMRO: qmroHref Rajab KZ, Fuh KF, Mittra R et al. (2005). Dielectric property measurement using a resonant nonradiative-dielectric waveguide structure. nameOfConference DOI: 10.1109/LMWC.2004.842845 QMRO: qmroHref Baker A, Lanagan M, Randall C et al. (2005). Integration concepts for the fabrication of LTCC structures. nameOfConference DOI: 10.1111/j.1744-7402.2005.02052.x QMRO: qmroHref Rajab KZ, Mittra R, Lanagan MT (2005). Size Reduction of Microstrip Antennas using Metamaterials. 2005 IEEE Antennas and Propagation Society International Symposium DOI: 10.1109/aps.2005.1552000 QMRO: qmroHref Mittra R, Bringuier J, Abdel-Mageed M et al. (2005). Some novel techniques for size reduction of microstrip patch antennas. nameOfConference DOI: 10.1109/APMC.2005.1606171 QMRO: qmroHref