Dr Chong Li

  • Lecturer (Electronic and Nanoscale Engineering)

telephone: +44 141 330 4327
email: Chong.Li@glasgow.ac.uk

Research interests

Biography

Dr. Chong Li received a BEng degree in Telecommunications Engineering from Donghua University (Shanghai, China) in 2002, an MSc degree (Distinction) in Communications Engineering from the University of Manchester in 2007, and a PhD degree in Electronics and Electrical Engineering from the University of Glasgow in 2011. His PhD involved developing monolithic millimetre-wave signal sources and integrated circuits. He subsequently became a Postdoctoral Research Assistant and later a Postdoctoral Research Associate at the University of Glasgow, working on development of terahertz imaging systems. Dr. Li joined National Physical Laboratory in January 2014 as a Higher Research Scientist. Since then he had conctibuted to and led several commericial projects and UK national and European researech projects. He was the measurement service provider (MSP) for Ultrafast Waveform Metrology service at NPL. He also led work on microwave and millimetre-wave on-wafer measurements. He's holding a visiting position at the Advanced Technology Institue (ATI), University of Surrey since January 2017.  Dr. Li became a senior member of IEEE in April 2017. He was a member of TPC for ARFTG Spring 2017. Dr Li won the best paper at the LAPC 2015.

Research Interests

I am leading the Microwave and THz Electronics (MATE) Group and interested in developing novel microwave, mmWave and THz components, devices and circuits; integrated nano-vacuum electronics; emerging materials and technologies for wireless sensing, imaging, power transfer and communications; metrology for antennas and propagation; metrology for on-wafer measurements.

Summer students, final year/MSc project students, self-funded/goverment-funded PhD students are welcome to my group! Please contact me if you have any brilliant ideas about any of the above listed topic (s) or beyond!

Equipment and Facilities

Glasgow University has the state-of-art equipment and facilities for RF & microwave measurment and micro-/nano-fabrication. More information about fabrication facilities can be found on the JWNC website. Here below list some of the equipment for measurement: 

1 GHz-16 GHz anechoic chamber for near-field antenna measurement

10 MHz-110 GHz on-wafer S-parameter VNA system (semi-automated)

140 GHz-220 GHz and 220 GHz-325 GHz on-wafer and waveguide VNA systems

750 GHz-1.1 THz VNA system with Swissto12's material characterisation kit (MCK)

Semiconductor device analyser for DC & Pulsed IV/CV measurement

Sprectrum analyer and power meter for up to 325 GHz  

and many more!

Research Topics 

Nano-vaccum electronics for mmWave and THz applications

(contents to be added)

Metrology for on-wafer S-parameter measurements

On-wafer measurements at microwave and millimetre-wave frequenices are challenging due to various reasons such as generation of higher-order modes when probes contacting measurement pads, crosstalks or signal leakages between probes and neighbouring circuits, and change of testing enviroments and so on. We are interested in developing new calibration algorithms and designing calibration stardards to improve the accuracy of system calibrations and device measurements.  

Collaborators: NPL and HSRI

more to be added...

Supervision

Aihua Wu, Visiting scholar, HSRI (NPL)

Chen Liu,  Visiting scholar, HSRI (NPL)

Haris Votsi, PhD, University of Surrey (NPL)

Teaching

Real-time computing system (Y2)

Microwave electronic and optoelectronic devices (Y4)

Additional information

Projects

EMPIR PlanarCal (WP leader) 2015-2018 (NPL)

EMPIR MET5G 2015-2018 (NPL)

EMRP MORSE 2013-2016 (NPL)

DECC DGO2 2014 (NPL)

Publications

List by: Type | Date

Jump to: 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009
Number of items: 46.

2015

Khalid, A.-u.-H., Li, C., Lok, L. B. and Cumming, D. R.S. (2015) Oscillation detection technique by using Vector Network Analyzer. Journal of Terahertz Science and Electronic Information Technology, 13(3), pp. 382-388.

2014

Papageorgiou, V., Khalid, A., Li, C., Steer, M. J. and Cumming, D. R.S. (2014) Integration techniques of pHEMTs and planar Gunn diodes on GaAs substrates. Solid-State Electronics, 102, pp. 87-92. (doi:10.1016/j.sse.2014.06.006)

Maricar, M. I., Glover, J., Khalid, A., Li, C., Evans, G., Cumming, D. S.R. and Oxley, C. H. (2014) An AlGaAs/GaAs-based planar Gunn diode oscillator with a fundamental frequency operation of 120 GHz. Microwave and Optical Technology Letters, 56(10), pp. 2449-2451. (doi:10.1002/mop.28606)

Maricar, M. I., Khalid, A., Glover, J., Evans, G.A., Vasileious, P., Li, C., Cumming, D. and Oxley, C.H. (2014) Extraction of second harmonic from the In0.57Ga0.47As planar Gunn diode using radial stub resonators. Solid-State Electronics, 99, pp. 38-40. (doi:10.1016/j.sse.2014.05.011)

Papageorgiou, V., Khalid, A.-u.-H., Li, C. and Cumming, D. R.S. (2014) Co-fabrication of planar Gunn diode and HEMT on InP substrate. IEEE Transactions on Electron Devices, 61(8), pp. 2779-2784. (doi:10.1109/TED.2014.2331368)

Khalid, A. et al. (2014) Terahertz oscillations in an In0.53Ga0.47As submicron planar gunn diode. Journal of Applied Physics, 115(11), p. 114502. (doi:10.1063/1.4868705)

Grant, J. , McCrindle, I.J.H., Li, C. and Cumming, D.R.S. (2014) Multispectral metamaterial absorber. Optics Letters, 39(5), pp. 1227-1230. (doi:10.1364/OL.39.001227)

Wang, J., Wang, L., Li, C., Alharbi, K., Khalid, A. and Wasige, E. (2014) W-band InP-based resonant tunnelling diode oscillator with milliwatt output power. In: 26th International Conference on Indium Phosphide and Related Materials, Montpelier, France, 11-15 May 2014, pp. 1-2. (doi:10.1109/ICIPRM.2014.6880531)

2013

Grant, J. , Escorcia Carranza, I., Li, C., McCrindle, I. and Cumming, D. (2013) A monolithic resonant terahertz sensor element comprising a metamaterial absorber and micro-bolometer. Laser and Photonics Reviews, 7(6), pp. 1043-1048. (doi:10.1002/lpor.201300087)

Li, C., Grant, J. , Wang, J. and Cumming, D.S. (2013) A Nipkow disk integrated with Fresnel lenses for terahertz single pixel imaging. Optics Express, 21(21), pp. 24452-24459. (doi:10.1364/OE.21.024452)

Ismaeel Maricar, M. et al. (2013) Planar gunn diode characterisation and resonators elements to realise oscillator circuits. In: International Conference on Advanced Nanomaterials and Emerging Engineering Technologies (ICANMEET-2013), Chennai, India, 24-26 Jul 2013, pp. 597-601. (doi:10.1109/ICANMEET.2013.6609384)

Saha, S.C., Li, C., Ma, Y., Grant, J.P. and Cumming, D.R.S. (2013) Fabrication of multilevel silicon diffractive lens at terahertz frequency. IEEE Transactions on Terahertz Science and Technology, 3(4), pp. 479-485. (doi:10.1109/TTHZ.2013.2251929)

Wang, J., Wang, L., Li, C. and Wasige, E. (2013) 28 GHz MMIC resonant tunnelling diode oscillator of around 1mW output power. Electronics Letters, 49(13), pp. 816-818. (doi:10.1049/el.2013.1583)

Li, C., Lok, L.B., Khalid, A., Papageorgiou, V., Grant, J. and Cumming, D.R.S. (2013) Millimeter-wave coplanar stripline power dividers. International Journal of Microwave and Wireless Technologies, 5(3), pp. 205-212. (doi:10.1017/S1759078713000421)

Khalid, A., Li, C., Dunn, G.M. and Cumming, D.R.S. (2013) Multi-channel GaAs-based planar gunn diodes. In: 40th International Symposium on Compound Semiconductors, Kobe, Japan, 19-23 May 2013,

Khalid, A.-u.-H., Li, C., Papageorgiou, V., Pilgrim, N.J., Dunn, G.M. and Cumming, D. (2013) A 218-GHz second-harmonic multiquantum well GaAs-based planar Gunn diodes. Microwave and Optical Technology Letters, 55(3), pp. 686-688. (doi:10.1002/mop.27393)

Khalid, A. et al. (2013) In0.53Ga0.47As planar Gunn diodes operating at a fundamental frequency of 164 GHz. IEEE Electron Device Letters, 34(1), pp. 39-41. (doi:10.1109/LED.2012.2224841)

Li, C., Lok, L.B., Khalid, A., Papageorgiou, V., Grant, J. and Cumming, D. (2013) A coplanar ring power divider with high isolation for V-band and W-band applications. In: 42nd European Microwave Conference (EuMC), Amsterdam, The Netherlands, 29 Oct- 01 Nov 2012. IEEE: New York, NY, USA, pp. 57-60. ISBN 9781467322157

Papageorgiou, V., Khalid, A., Li, C., Dunn, G. M. and Cumming, D. R. S. (2013) The development of planar Gunn diodes for the realisation of MMIC oscillators. In: IET 1st Annual Active and Passive RF Devices Seminar, Glasgow, UK, 29 Oct. 2013, pp. 55-58. (doi:10.1049/ic.2013.0248)

Papageorgiou, V., Khalid, A., Steer, M. J., Li, C. and Cumming, D. R. S. (2013) Monolithic Implementation of a Planar Gunn Diode and a pHEMT. In: HETECH 2013: 22nd European Workshop on Heterostructure Technology, Glasgow, UK, 9-11 Sept. 2013, (Unpublished)

Papageorgiou, V., Khalid, A., Steer, M. J., Li, C. and Cumming, D. R. S. (2013) Monolithic fabrication of a planar Gunn diode and a pHEMT side-by-side. In: ESSDERC/ESSCIRC 2013: 2013 European Solid-State Device Research and 2013 European Solid-State Circuits Conference, Bucharest, Romania, 16-20 Sept. 2013, pp. 111-114. (doi:10.1109/ESSDERC.2013.6818831)

Papageorgiou, V., Khalid, A.H., Li, C. and Cumming, D. (2013) Simulation and fabrication of InGaAs planar Gunn diode on InP substrate. In: 2013 International Conference on Indium Phosphide and Related Materials (IPRM), Kobe, Japan, 19-23 May 2013,

Wang, J., Wang, L., Li, C., Cumming, D. and Wasige, E. (2013) Novel resonant tunnelling diode oscillator with high output power. In: UK Semiconductors 2013, Sheffield, UK, 3 - 4 Jul 2013,

2012

Li, C., Khalid, A., Papageorgiou, V., Lok, L.B. and Cumming, D.R.S. (2012) A wideband CPW ring power combiner with low insertion loss and high port isolation. IEEE Microwave and Wireless Components Letters, 22(11), pp. 580-582. (doi:10.1109/LMWC.2012.2224854)

Khalid, A., Li, C., Grant, J. , Saha, S., Ferguson, S. and Cumming, D. (2012) Simple e-beam air-bridge technology for mm-wave applications. Microelectronic Engineering, 98, pp. 262-265. (doi:10.1016/j.mee.2012.06.006)

Montes, M., Dunn, G., Stephen, A., Khalid, A., Li, C., Cumming, D., Oxley, C.H., Hopper, R.H. and Kuball, M. (2012) Reduction of impact ionization in GaAs-based planar gunn diodes by anode contact design. IEEE Transactions on Electron Devices, 59(3), pp. 654-660. (doi:10.1109/TED.2011.2177094)

2011

Li, C., Khalid, A., Caldwell, S.H.P., Holland, M., Dunn, G.M., Thayne, I.G. and Cumming, D.R.S. (2011) Design, fabrication and characterization of In0.23Ga0.77As-channel planar Gunn diodes for millimeter wave applications. Solid-State Electronics, 64(1), pp. 67-72. (doi:10.1016/j.sse.2011.07.008)

Li, C., Lok, L.B., Khalid, A., Thayne, I.G. and Cumming, D.R.S. (2011) Investigation of loading effect on power performance for Planar Gunn diodes using load-pull measurement technique. IEEE Microwave and Wireless Components Letters, 21(10), pp. 556-558. (doi:10.1109/LMWC.2011.2163496)

Hou, L., Haji, M., Li, C., Qiu, B.C. and Bryce, A.C. (2011) 80-GHz AlGaInAs/InP 1.55 mu m colliding-pulse mode-locked laser with low divergence angle and timing jitter. Laser Physics Letters, 8(7), pp. 535-540. (doi:10.1002/lapl.201110029)

Li, C., Khalid, A., Caldwell, S.H.P., Pilgrim, N.J., Holland, M.C., Dunn, G.M. and Cumming, D.R.S. (2011) Enhancement of power and frequency in Planar Gunn diodes by introducing extra delta-doping layers. Microwave and Optical Technology Letters, 53(7), pp. 1624-1626. (doi:10.1002/mop.26071)

Li, C., Khalid, A., Lok, L.B. and Cumming, D. (2011) Novel on-wafer measurement technique for passive multiport devices in millimeter wave frequency range. In: 9th Millimeter-Wave User Group Meeting, Glasgow, UK, 31 March 2011, (Unpublished)

Khalid, A., Li, C., Holland, M.C., Gunn, D.M. and Cumming, D.R.S. (2011) Novel composite contact design and fabrication for planar Gunn devices for millimeter-wave and terahertz frequencies. Physica Status Solidi C, 8(2), pp. 316-318. (doi:10.1002/pssc.201000529)

Pilgrim, N.J., Khalid, A., Li, C., Dunn, G.M. and Cumming, D.R.S. (2011) Contact shaping in planar Gunn diodes. Physica Status Solidi C, 8(2), pp. 313-315. (doi:10.1002/pssc.201000539)

Hou, L., Haji, M., Li, C., Akbar, J., Marsh, J.H. and Bryce, A.C. (2011) 80-GHz AlGaInAs/InP 1.55 mu m colliding-pulse mode-locked laser with low divergence angle and timing jitter. In: Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, Munich, Germany, 22-26 May 2011, (doi:10.1109/CLEOE.2011.5942606)

Khalid, A., Li, C., Grant, J. , Saha, S., Ferguson, S. and Cumming, D. (2011) A simple air bridge technology for mm-wave applications. In: 37th International Conference on Micro and Nano Engineering: MNE 2011, Berlin, 19 - 23 September 2011,

Li, C., Lok, L.B., Khalid, A. and Cumming, D. (2011) A broadband circular combiner/divider for planar Gunn oscillators. In: 2nd Annual Passive RF and Microwave Components Seminar. The Institution of Engineering and Technology, pp. 15-20. ISBN 9781849193221 (doi:10.1049/ic.2011.0196)

Li, C., Lok, L.B., Khalid, A. and Cumming, D.R.S. (2011) Coplanar ring divider with wideband high isolation performance. Progress in Electromagnetics Research Letters, 25, pp. 1-10.

2010

Khalid, A., Li, C. and Cumming, D. (2010) Vertical scaling of multi-stack Planar Gunn diodes. 2010 International Semiconductor Conference (CAS), 2, pp. 427-430. (doi:10.1109/SMICND.2010.5650562)

Li, C., Khalid, A., Lok, L. and Cumming, D. (2010) Low power signal detection in emerging transferred electron devices using vector network analyser above 100 GHz. In: 8th NPL Millimeter-wave Users's Group Meeting, London, UK, 1 Oct 2010,

Li, C., Khalid, A., Lok, L.B., Holland, M. and Cumming, D. (2010) Millimeter-wave planar Gunn diodes. In: UK Semiconductors 2010, Sheffield, UK, 7-8 Jul 2010, (Unpublished)

Khalid, A., Li, C., Pilgrim, N. J., Holland, M. C., Dunn, G. M. and Cumming, D. R. S. (2010) Novel Composite Contact Design and Fabrication for Planar Gunn Devices for Millimeter-Wave and Terahertz Frequencies. In: ISCS 2010: 37th International Symposium on Compound Semiconductors, Kagawa, Japan, 31 May - 4 June 2010,

Li, C., Khalid, A., Lok, L.B., Pilgrim, N.J., Holland, M., Dunn, G.M. and Cumming, D. (2010) An In0.23Ga0.77As-based pHEMT-like Planar Gunn Diode Operating at 116 GHz. In: 35th International Conference on Infrared, Millimeter and Terahertz Waves, Rome, Italy, 5 - 10 September 2010,

Li, C., Khalid, A., Paluchowski Caldwell, S. H., Pilgrim, N. J., Holland, M. C., Dunn, G. M. and Cumming, D. R. S. (2010) Enhancement of Power and Frequency in HEMT-Like Planar Gunn Diodes by Introducing Extra Delta-Doping Layers. In: ISCS 2010: 37th International Symposium on Compound Semiconductors, Kagawa, Japan, 31 May - 4 June 2010,

Lok, L.B., Li, C., Khalid, A., Pilgrim, N.J., Dunn, G.M. and Cumming, D. (2010) Demonstration of the Self-Mixing Effect with a Planar Gunn Diode at Millimeter-Wave Frequency. In: 35th International Conference on Infrared, Millimeter and Terahertz Waves, Rome, Italy, 5 -10 September 2010,

2009

Khalid, A., Li, C., Dunn, G., Pilgrim, N. and Cumming, D.R.S. (2009) Observation of multiple domains in a planar Gunn diode. In: EuMC 2009: European Microwave Conference: 28 September - 2 October 2009, Rome, Italy. IEEE Computer Society: Piscataway, N.J., USA, pp. 298-300. ISBN 9781424447497

Li, C., Khalid, A., Pilgrim, N., Holland, M.C., Dunn, G. and Cumming, D.R.S. (2009) Novel planar Gunn diode operating in fundamental mode up to 158 GHz. Journal of Physics: Conference Series, 193(1), 012029. (doi:10.1088/1742-6596/193/1/012029)

This list was generated on Sat Aug 19 01:06:15 2017 BST.
Number of items: 46.

Articles

Khalid, A.-u.-H., Li, C., Lok, L. B. and Cumming, D. R.S. (2015) Oscillation detection technique by using Vector Network Analyzer. Journal of Terahertz Science and Electronic Information Technology, 13(3), pp. 382-388.

Papageorgiou, V., Khalid, A., Li, C., Steer, M. J. and Cumming, D. R.S. (2014) Integration techniques of pHEMTs and planar Gunn diodes on GaAs substrates. Solid-State Electronics, 102, pp. 87-92. (doi:10.1016/j.sse.2014.06.006)

Maricar, M. I., Glover, J., Khalid, A., Li, C., Evans, G., Cumming, D. S.R. and Oxley, C. H. (2014) An AlGaAs/GaAs-based planar Gunn diode oscillator with a fundamental frequency operation of 120 GHz. Microwave and Optical Technology Letters, 56(10), pp. 2449-2451. (doi:10.1002/mop.28606)

Maricar, M. I., Khalid, A., Glover, J., Evans, G.A., Vasileious, P., Li, C., Cumming, D. and Oxley, C.H. (2014) Extraction of second harmonic from the In0.57Ga0.47As planar Gunn diode using radial stub resonators. Solid-State Electronics, 99, pp. 38-40. (doi:10.1016/j.sse.2014.05.011)

Papageorgiou, V., Khalid, A.-u.-H., Li, C. and Cumming, D. R.S. (2014) Co-fabrication of planar Gunn diode and HEMT on InP substrate. IEEE Transactions on Electron Devices, 61(8), pp. 2779-2784. (doi:10.1109/TED.2014.2331368)

Khalid, A. et al. (2014) Terahertz oscillations in an In0.53Ga0.47As submicron planar gunn diode. Journal of Applied Physics, 115(11), p. 114502. (doi:10.1063/1.4868705)

Grant, J. , McCrindle, I.J.H., Li, C. and Cumming, D.R.S. (2014) Multispectral metamaterial absorber. Optics Letters, 39(5), pp. 1227-1230. (doi:10.1364/OL.39.001227)

Grant, J. , Escorcia Carranza, I., Li, C., McCrindle, I. and Cumming, D. (2013) A monolithic resonant terahertz sensor element comprising a metamaterial absorber and micro-bolometer. Laser and Photonics Reviews, 7(6), pp. 1043-1048. (doi:10.1002/lpor.201300087)

Li, C., Grant, J. , Wang, J. and Cumming, D.S. (2013) A Nipkow disk integrated with Fresnel lenses for terahertz single pixel imaging. Optics Express, 21(21), pp. 24452-24459. (doi:10.1364/OE.21.024452)

Saha, S.C., Li, C., Ma, Y., Grant, J.P. and Cumming, D.R.S. (2013) Fabrication of multilevel silicon diffractive lens at terahertz frequency. IEEE Transactions on Terahertz Science and Technology, 3(4), pp. 479-485. (doi:10.1109/TTHZ.2013.2251929)

Wang, J., Wang, L., Li, C. and Wasige, E. (2013) 28 GHz MMIC resonant tunnelling diode oscillator of around 1mW output power. Electronics Letters, 49(13), pp. 816-818. (doi:10.1049/el.2013.1583)

Li, C., Lok, L.B., Khalid, A., Papageorgiou, V., Grant, J. and Cumming, D.R.S. (2013) Millimeter-wave coplanar stripline power dividers. International Journal of Microwave and Wireless Technologies, 5(3), pp. 205-212. (doi:10.1017/S1759078713000421)

Khalid, A.-u.-H., Li, C., Papageorgiou, V., Pilgrim, N.J., Dunn, G.M. and Cumming, D. (2013) A 218-GHz second-harmonic multiquantum well GaAs-based planar Gunn diodes. Microwave and Optical Technology Letters, 55(3), pp. 686-688. (doi:10.1002/mop.27393)

Khalid, A. et al. (2013) In0.53Ga0.47As planar Gunn diodes operating at a fundamental frequency of 164 GHz. IEEE Electron Device Letters, 34(1), pp. 39-41. (doi:10.1109/LED.2012.2224841)

Li, C., Khalid, A., Papageorgiou, V., Lok, L.B. and Cumming, D.R.S. (2012) A wideband CPW ring power combiner with low insertion loss and high port isolation. IEEE Microwave and Wireless Components Letters, 22(11), pp. 580-582. (doi:10.1109/LMWC.2012.2224854)

Khalid, A., Li, C., Grant, J. , Saha, S., Ferguson, S. and Cumming, D. (2012) Simple e-beam air-bridge technology for mm-wave applications. Microelectronic Engineering, 98, pp. 262-265. (doi:10.1016/j.mee.2012.06.006)

Montes, M., Dunn, G., Stephen, A., Khalid, A., Li, C., Cumming, D., Oxley, C.H., Hopper, R.H. and Kuball, M. (2012) Reduction of impact ionization in GaAs-based planar gunn diodes by anode contact design. IEEE Transactions on Electron Devices, 59(3), pp. 654-660. (doi:10.1109/TED.2011.2177094)

Li, C., Khalid, A., Caldwell, S.H.P., Holland, M., Dunn, G.M., Thayne, I.G. and Cumming, D.R.S. (2011) Design, fabrication and characterization of In0.23Ga0.77As-channel planar Gunn diodes for millimeter wave applications. Solid-State Electronics, 64(1), pp. 67-72. (doi:10.1016/j.sse.2011.07.008)

Li, C., Lok, L.B., Khalid, A., Thayne, I.G. and Cumming, D.R.S. (2011) Investigation of loading effect on power performance for Planar Gunn diodes using load-pull measurement technique. IEEE Microwave and Wireless Components Letters, 21(10), pp. 556-558. (doi:10.1109/LMWC.2011.2163496)

Hou, L., Haji, M., Li, C., Qiu, B.C. and Bryce, A.C. (2011) 80-GHz AlGaInAs/InP 1.55 mu m colliding-pulse mode-locked laser with low divergence angle and timing jitter. Laser Physics Letters, 8(7), pp. 535-540. (doi:10.1002/lapl.201110029)

Li, C., Khalid, A., Caldwell, S.H.P., Pilgrim, N.J., Holland, M.C., Dunn, G.M. and Cumming, D.R.S. (2011) Enhancement of power and frequency in Planar Gunn diodes by introducing extra delta-doping layers. Microwave and Optical Technology Letters, 53(7), pp. 1624-1626. (doi:10.1002/mop.26071)

Khalid, A., Li, C., Holland, M.C., Gunn, D.M. and Cumming, D.R.S. (2011) Novel composite contact design and fabrication for planar Gunn devices for millimeter-wave and terahertz frequencies. Physica Status Solidi C, 8(2), pp. 316-318. (doi:10.1002/pssc.201000529)

Pilgrim, N.J., Khalid, A., Li, C., Dunn, G.M. and Cumming, D.R.S. (2011) Contact shaping in planar Gunn diodes. Physica Status Solidi C, 8(2), pp. 313-315. (doi:10.1002/pssc.201000539)

Li, C., Lok, L.B., Khalid, A. and Cumming, D.R.S. (2011) Coplanar ring divider with wideband high isolation performance. Progress in Electromagnetics Research Letters, 25, pp. 1-10.

Khalid, A., Li, C. and Cumming, D. (2010) Vertical scaling of multi-stack Planar Gunn diodes. 2010 International Semiconductor Conference (CAS), 2, pp. 427-430. (doi:10.1109/SMICND.2010.5650562)

Li, C., Khalid, A., Pilgrim, N., Holland, M.C., Dunn, G. and Cumming, D.R.S. (2009) Novel planar Gunn diode operating in fundamental mode up to 158 GHz. Journal of Physics: Conference Series, 193(1), 012029. (doi:10.1088/1742-6596/193/1/012029)

Book Sections

Li, C., Lok, L.B., Khalid, A., Papageorgiou, V., Grant, J. and Cumming, D. (2013) A coplanar ring power divider with high isolation for V-band and W-band applications. In: 42nd European Microwave Conference (EuMC), Amsterdam, The Netherlands, 29 Oct- 01 Nov 2012. IEEE: New York, NY, USA, pp. 57-60. ISBN 9781467322157

Li, C., Lok, L.B., Khalid, A. and Cumming, D. (2011) A broadband circular combiner/divider for planar Gunn oscillators. In: 2nd Annual Passive RF and Microwave Components Seminar. The Institution of Engineering and Technology, pp. 15-20. ISBN 9781849193221 (doi:10.1049/ic.2011.0196)

Khalid, A., Li, C., Dunn, G., Pilgrim, N. and Cumming, D.R.S. (2009) Observation of multiple domains in a planar Gunn diode. In: EuMC 2009: European Microwave Conference: 28 September - 2 October 2009, Rome, Italy. IEEE Computer Society: Piscataway, N.J., USA, pp. 298-300. ISBN 9781424447497

Conference Proceedings

Wang, J., Wang, L., Li, C., Alharbi, K., Khalid, A. and Wasige, E. (2014) W-band InP-based resonant tunnelling diode oscillator with milliwatt output power. In: 26th International Conference on Indium Phosphide and Related Materials, Montpelier, France, 11-15 May 2014, pp. 1-2. (doi:10.1109/ICIPRM.2014.6880531)

Ismaeel Maricar, M. et al. (2013) Planar gunn diode characterisation and resonators elements to realise oscillator circuits. In: International Conference on Advanced Nanomaterials and Emerging Engineering Technologies (ICANMEET-2013), Chennai, India, 24-26 Jul 2013, pp. 597-601. (doi:10.1109/ICANMEET.2013.6609384)

Khalid, A., Li, C., Dunn, G.M. and Cumming, D.R.S. (2013) Multi-channel GaAs-based planar gunn diodes. In: 40th International Symposium on Compound Semiconductors, Kobe, Japan, 19-23 May 2013,

Papageorgiou, V., Khalid, A., Li, C., Dunn, G. M. and Cumming, D. R. S. (2013) The development of planar Gunn diodes for the realisation of MMIC oscillators. In: IET 1st Annual Active and Passive RF Devices Seminar, Glasgow, UK, 29 Oct. 2013, pp. 55-58. (doi:10.1049/ic.2013.0248)

Papageorgiou, V., Khalid, A., Steer, M. J., Li, C. and Cumming, D. R. S. (2013) Monolithic Implementation of a Planar Gunn Diode and a pHEMT. In: HETECH 2013: 22nd European Workshop on Heterostructure Technology, Glasgow, UK, 9-11 Sept. 2013, (Unpublished)

Papageorgiou, V., Khalid, A., Steer, M. J., Li, C. and Cumming, D. R. S. (2013) Monolithic fabrication of a planar Gunn diode and a pHEMT side-by-side. In: ESSDERC/ESSCIRC 2013: 2013 European Solid-State Device Research and 2013 European Solid-State Circuits Conference, Bucharest, Romania, 16-20 Sept. 2013, pp. 111-114. (doi:10.1109/ESSDERC.2013.6818831)

Papageorgiou, V., Khalid, A.H., Li, C. and Cumming, D. (2013) Simulation and fabrication of InGaAs planar Gunn diode on InP substrate. In: 2013 International Conference on Indium Phosphide and Related Materials (IPRM), Kobe, Japan, 19-23 May 2013,

Wang, J., Wang, L., Li, C., Cumming, D. and Wasige, E. (2013) Novel resonant tunnelling diode oscillator with high output power. In: UK Semiconductors 2013, Sheffield, UK, 3 - 4 Jul 2013,

Li, C., Khalid, A., Lok, L.B. and Cumming, D. (2011) Novel on-wafer measurement technique for passive multiport devices in millimeter wave frequency range. In: 9th Millimeter-Wave User Group Meeting, Glasgow, UK, 31 March 2011, (Unpublished)

Hou, L., Haji, M., Li, C., Akbar, J., Marsh, J.H. and Bryce, A.C. (2011) 80-GHz AlGaInAs/InP 1.55 mu m colliding-pulse mode-locked laser with low divergence angle and timing jitter. In: Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, Munich, Germany, 22-26 May 2011, (doi:10.1109/CLEOE.2011.5942606)

Khalid, A., Li, C., Grant, J. , Saha, S., Ferguson, S. and Cumming, D. (2011) A simple air bridge technology for mm-wave applications. In: 37th International Conference on Micro and Nano Engineering: MNE 2011, Berlin, 19 - 23 September 2011,

Li, C., Khalid, A., Lok, L. and Cumming, D. (2010) Low power signal detection in emerging transferred electron devices using vector network analyser above 100 GHz. In: 8th NPL Millimeter-wave Users's Group Meeting, London, UK, 1 Oct 2010,

Li, C., Khalid, A., Lok, L.B., Holland, M. and Cumming, D. (2010) Millimeter-wave planar Gunn diodes. In: UK Semiconductors 2010, Sheffield, UK, 7-8 Jul 2010, (Unpublished)

Khalid, A., Li, C., Pilgrim, N. J., Holland, M. C., Dunn, G. M. and Cumming, D. R. S. (2010) Novel Composite Contact Design and Fabrication for Planar Gunn Devices for Millimeter-Wave and Terahertz Frequencies. In: ISCS 2010: 37th International Symposium on Compound Semiconductors, Kagawa, Japan, 31 May - 4 June 2010,

Li, C., Khalid, A., Lok, L.B., Pilgrim, N.J., Holland, M., Dunn, G.M. and Cumming, D. (2010) An In0.23Ga0.77As-based pHEMT-like Planar Gunn Diode Operating at 116 GHz. In: 35th International Conference on Infrared, Millimeter and Terahertz Waves, Rome, Italy, 5 - 10 September 2010,

Li, C., Khalid, A., Paluchowski Caldwell, S. H., Pilgrim, N. J., Holland, M. C., Dunn, G. M. and Cumming, D. R. S. (2010) Enhancement of Power and Frequency in HEMT-Like Planar Gunn Diodes by Introducing Extra Delta-Doping Layers. In: ISCS 2010: 37th International Symposium on Compound Semiconductors, Kagawa, Japan, 31 May - 4 June 2010,

Lok, L.B., Li, C., Khalid, A., Pilgrim, N.J., Dunn, G.M. and Cumming, D. (2010) Demonstration of the Self-Mixing Effect with a Planar Gunn Diode at Millimeter-Wave Frequency. In: 35th International Conference on Infrared, Millimeter and Terahertz Waves, Rome, Italy, 5 -10 September 2010,

This list was generated on Sat Aug 19 01:06:15 2017 BST.