James Watt School of Engineering

Dr Chong Li

Lecturer (Electronic & Nanoscale Engineering)

telephone: +44 141 330 4626
email: Chong.Li@glasgow.ac.uk

ORCID iD https://orcid.org/0000-0001-5654-0039

Research interests

Biography

I 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. My PhD involved developing monolithic millimetre-wave signal sources and integrated circuits.

Following my PhD I took up a post as a Postdoctoral Research Assistant, and later a Postdoctoral Research Associate at the University of Glasgow, working on development of terahertz imaging systems. I joined the National Physical Laboratory (NPL) in January 2014 as a Higher Research Scientist. Since then I have contributed to and led several commercial projects and UK national and three European research projects including PlanarCal, MET5G and MORSE. I was the measurement service provider (MSP) for Ultrafast Waveform Metrology service at the NPL and led work on microwave and millimetre-wave on-wafer measurements.

I held a visiting position at the Advanced Technology Institute (ATI), University of Surrey in 2017. I am a senior member of IEEE and a member of the European Microwave Association (EuMA) General Assembly (GA) representing Group 4 (United Kingdom, Ireland, Gibraltar, Malta). I am also an Associate Editor for Royal Society Open Science. I've served as a member of the technical programme committee for several conferences. In 2015 I won the best paper at Loughborough Antennas and Propagation Conference (LAPC).

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;
emerging materials and technologies for wireless sensing, imaging, power transfer and communications;
metrology for antennas and propagation; and
metrology for on-wafer measurements.

Summer students, final year/MSc project students, self-funded/government-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 something else.

Equipment and Facilities

I am currently managing the Microwave and Terahertz Laboraotry which is equiped with the state-of-art instruments for characterisation of RF, microwave, mmWave and THz devices and systems. Information about micro-/nano-fabrication can be found on the JWNC website. Here below list some of the equipment for measurements from RF to THz:

Anntenna measurement systems

1 GHz-16 GHz anechoic chamber
140 GHz-220 GHz near field atenna scanning system
220 GHz-325 GHz near field atenna scanning system
750 GHz-1.1 THz near field atenna scanning system

On-wafer power and S-parameter measurement systems

10 MHz-110 GHz on-wafer VNA system integrated with semi-automated probe station
140 GHz-220 GHz and 220 GHz-325 GHz on-wafer VNA systems with manul probe stations
750 GHz-1.1 THz on-wafer VNA system with manul probe stations
Spectrum analyer and power meter for up to 325 GHz

Other measurement capabilities

750 GHz-1.1 THz material characterisation kit (MCK)
Semiconductor device analyser for DC & Pulsed IV/CV measurement (on-wafer)
DC-40 GHz high/low temprature (77K/675K) manual probe station with permanent maganet

PhD projects

Compact monolithic millimetre-wave and terahertz integrated circuits
Nano-vaccum electronics for mmWave and THz applications
Graphene-based tunable electronic and optical devices
Development of mm-wave imaging systems
Development of wireless charging technology for in-body medical and diagnostic devices
Metrology for on-wafer S-parameter measurements

Grants

"Antenna for satellite communications" Spire Global Ltd, 2019, PI

"RFID for tracking livestocks" Scottish Agricultural Organisation Society Ltd. 2019, PI

"Multiphysical millimeterw-wave probe station," EPSRC ECR £49.6k, 2019, PI

"Feasibility studies on deploying a self-contained solar-hydraulic pilot power plant in a rural area in Bangladesh," Global Challenges Research Fund, £27.2K, 2018, PI

"Millimetre-wave on-wafer power and S-parameter measurements," Arralis Ltd, 2018-2019, £10k, PI

Supervision

Current PhD students:

Michael Farage (Y3) "Reflectarray atnennas for remote mm-wave sensing" (1st supervisor)

Kaivan Karami (Y1) "Compact terahertz integrated circuits" (1st supervisor)

Yi Yi (Y1) "Graphene-based terahertz tunable modulators" (1st supervisor)

Aniket Dhongde (Y1) "RF GaN amplifiers" (2nd supervisor)

Current MEng/MSc Students:

Yang Yang "300 GHz imaging system"

Mingyan Zhong "THz multipliers I"

Siyuan Zhou "Underwater wireless communication system"

Yufei Ma "Underwater wireless charging system"

Mingxin Zheng "THz multipliers II"

Wei Zhang "RFID for tracking livestocks" (Scottish Agricultural Organisation Society Ltd )

Jialu Chen "Characterising dielectric properties of thin-film PMMA"

Current final year students

Current UG project students

Yihan Wang, Ruoye Wang, Di Zhang "Wireless energy harversting"

Zimo Zhao "Development of mmWave imaging system"
Former PhD students

2015-2018 Haris Votsi (Surrey)

Former visiting scholars:

2019: Dr. Ying Wang (Northwestern Polytechnical University )

2016-2017: Mr. Aihua Wu, HSRI， Mr. Chen Liu, HSRI

Former MEng/MSc Sudents

2018-2019: Muhammad Taha Ansari "RFID for tracking personal belongs"

Kavisha Jayathunge, Panagiotis Kamintzis, and Muhammad Taha Ansari "Wireless charging technology for underwater sensing"

2017-2018: Abu Inayat ，Asfand Tanwear，Kaivan Karami，Naeem Mannan，Zhivomir Arnaudov，Mohamed El Mustafa Ismail Omer "Hybrid solar hydraulic power generation system"

2017-2018: Anjeeshnu Das，Xiaoyi Guo，Yuyang Wang，Yi Yi，Zhenpei Zhou

Former undergraduate Students

2018-2019 Xiaotong Guo "Design of reflectarray antennas for next generation mobile communications" (FYP)

2018-2019 Jassim Alkuwari "Characterising thin-film materials at millimeterwave frequencies" (FYP)

2017-2018 Kwing Choy (FYP)

Teaching

Real-time Computer Systems (Y3)

Microwave and millimeterwave circuit design (Y5, MSc, MEng)

Design Special Project Y5:

"Development of sensor platform for underwater applications" 2018-2019

"A standalone renewable energy power plant for uninterrupted electricity supply" 2017-2018

Final Year Project Y4:

1. RFID for tracking personal belonings

2. Frequency scanning antennas for remote sensing

3. characterising thin-film materials

Additional information

Previous Projects

EMPIR PlanarCal (€1.8M) 2015-2018

EMPIR MET5G (€1.6M) 2015-2018

EMRP MORSE (€2.4M) 2013-2016

DECC DGO2 (£0.9M) 2014

Publications

List by: Type | Date

Jump to: 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009

Number of items: 63.

2019

Wu, A., Fu, X., Liu, C., Li, C. , Wang, Y., Liang, F. and Luan, P. (2019) Optimal design of passive devices for verifying on-wafer noise parameter measurement systems. IEEE Transactions on Instrumentation and Measurement, (Accepted for Publication)

Li, C. , Tang, Y. K., Saha, S., Ali, M. T. B., Basith, M. A. and Marma, A. (2019) Feasibility Studies on Deploying a Self-Contained Solar-Hydraulic Pilot Power Plant in a Rural Area in Bangladesh. Project Report. University of Glasgow. (Unpublished)

Ridler, N. M., Clarke, R. G., Li, C. and Salter, M. J. (2019) Strategies for traceable submillimeter-wave vector network analyzer measurements. IEEE Transactions on Terahertz Science and Technology, (Accepted for Publication)

Li, C. , Tang, Y. K., Saha, S., Bin Ali, M. T. and Basith, M. A. (2019) Current Status of Solar Home Systems in Bangladesh. 7th European Conference on Renewable Energy Systems, Madrid, Spain, 10-12 June 2019. (Accepted for Publication)

2018

Li, C. , Liu, C., Wu, A. and Ridler, N. (2018) A new SOLT calibration method for leaky on-wafer measurements using a 10-term error model. IEEE Transactions on Microwave Theory and Techniques, 66(8), pp. 3894-3900. (doi:10.1109/TMTT.2018.2832052)

Zahid, A., Yang, K., Heidari, H. , Li, C. , Imran, M. A. , Alomainy, A. and Abbasi, Q. H. (2018) Terahertz Characterisation of Living Plant Leaves for Quality of Life Assessment Applications. In: Microwave and Radar Week (MIKON-2018 and Baltic URSI Symposium-2018, Poznań, Poland, 14-17 May 2018, pp. 117-120. ISBN 9788394942137 (doi:10.23919/URSI.2018.8406770)

Clarke, R.G., Li, C. and Ridler, N.M. (2018) An Intra-laboratory Investigation of On-wafer Measurement Reproducibility at Millimeter-wave Frequencies. In: 2017 90th ARFTC Microwave Measurement Symposium (ARFTG), Boulder, CO, USA, 28 Nov - 01 Dec 2017, ISBN 9781538643563 (doi:10.1109/ARFTG.2017.8255866)

Wu, A., Li, C. , Sun, J., Wang, Y. and Liu, C. (2018) Development of a Verification Technique for On-wafer Noise Figure Measurement Systems. In: 2017 90th ARFTC Microwave Measurement Symposium (ARFTG), Boulder, CO, USA, 28 Nov - 01 Dec 2017, ISBN 9781538643563 (doi:10.1109/ARFTG.2017.8255878)

2017

Votsi, H., Li, C. , Aaen, P. H. and Ridler, N. M. (2017) An active interferometric method for extreme impedance on-wafer device measurements. IEEE Microwave and Wireless Components Letters, 27(11), pp. 1034-1036. (doi:10.1109/LMWC.2017.2750086)

Li, C. , Loh, T.-H., Tian, Z., Xu, Q. and Huang, Y. (2017) Evaluation of chamber effects on antenna efficiency measurements using non-reference antenna methods in two reverberation chambers. IET Microwaves, Antennas and Propagation, 11(11), pp. 1536-1541. (doi:10.1049/iet-map.2015.0838)

Ridler, N. and Li, C. (2017) Benchmarking Electrical Loss in Rectangular Metallic Waveguide at Submillimeter Wavelengths. In: 2017 10th UK-Europe-China Workshop on Milimetre Waves and Terahertz Technologies (UCMMT), Liverpool, UK, 11-13 Sep 2017, ISBN 9781538627204 (doi:10.1109/UCMMT.2017.8068355)

2016

Votsi, H., Roch-Jeune, I., Haddadi, K., Li, C. , Dambrine, G., Aaen, P.H. and Ridler, N. (2016) Development of a Reference Wafer for On-Wafer Testing of Extreme Impedance Devices. In: 2016 88th ARFTG Microwave Measurement Conference (ARFTG), Austin, TX, USA, 08-09 Dec 2016, ISBN 9781509045150 (doi:10.1109/ARFTG.2016.7839719)

Tian, Z., Huang, Y., Zu, Q., Loh, T.-H. and Li, C. (2016) Measurement of Absorption Cross Section of a Lossy Object in Reverberation Chamber Without the Need for Calibration. In: 2016 Loughborough Antennas & Propagation Conference (LAPC), Loughborough, UK, 14-15 Nov 2016, ISBN 9781509007844 (doi:10.1109/LAPC.2016.7807533)

Khalid, A. , Cumming, D. , Clarke, R., Li, C. and Ridler, N. (2016) Evaluation of a VNA-based material characterization kit at frequencies from 0.75 THz to 1.1 THz. In: 2016 IEEE 9th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies (UCMMT), Qingdao, China, 05-07 Sep 2016, pp. 31-34. ISBN 9781509022779 (doi:10.1109/UCMMT.2016.7873952)

Li, C. , Loh, T.-H., Humphreys, D. A., Gui, Y., Wang, H. and Qin, F. (2016) A LTE MIMO OTA Test System Using Vector Signal Transceivers. In: European Conference on Networks and Communications 2016, Athens, Greece, 27-30 June 2016,

Loh, T.-H., Li, C. , Wang, H. and Qin, F. (2016) A Software-Defined-Radio Platform for Multiple-Input-Multiple-Output Over-The-Air Measurement. In: 2016 10th European Conference on Antennas and Propagation (EuCAP), Davos, Switzerland, 10-15 Apr 2016, ISBN 9788890701863 (doi:10.1109/EuCAP.2016.7481104)

2015

Li, C. , Loh, T.-H., Tian, Z. H., Xu, Q. and Huang, Y. (2015) A Comparison of Antenna Efficiency Measurements Performed in Two Reverberation Chambers Using Non-Reference Antenna Methods. In: 2015 Loughborough Antennas & Propagation Conference (LAPC), Loughborough, UK, 02-03 Nov 2015, ISBN 9781479989430 (doi:10.1109/LAPC.2015.7366141)

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 In_0.53Ga_0.47As 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) In_0.53Ga_0.47As 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 In_0.23Ga_0.77As-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)

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