Gregory, A P; Woolliams, P D; Hanham, S M (2024) Robust Algorithms for Fitting Q-factor in the Complex Domain. IEEE Access, 12. pp. 188336-188348.

Gregory, A P; Hodgetts, T E; Clarke, R N; Hill, G J (2023) Calculations of the Fringing Capacitance of Cylindrical Electrodes. NPL Report. TQE 28

Lia, E; Ghosh, I; Hanham, S M; Walter, B; Bavedila, F; Faucher, M; Gregory, A P; Jensen, L; Buchholz, J; Fischer, H; Altmann, U; Follmann, R (2023) Novel mm-Wave Oscillator Based on an Electromagnetic Bandgap Resonator. IEEE Microwave and Wireless Technology Letters, 33 (6). pp. 863-866.

Salek, M; Hanham, S M; Gregory, A P (2023) High-Q 100 GHz Photonic Crystal Resonator Fabricated from a Cyclic Olefin Copolymer. IEEE Microwave and Wireless Technology Letters, 33 (3). pp. 279-282.

Gregory, A P (2021) Q-factor measurement by using a Vector Network Analyser. NPL Report. MAT 58

Gregory, A P; Hill, G J; Barnett, M A (2021) Low loss dielectric measurements in the frequency range 1-70 MHz by using a vector network analyser. Measurement Science and Technology, 32 (8). 085002

Gregory, A P; Hill, G J; Barnett, M A (2021) Low loss dielectric measurements in the frequency range 1–70 MHz by using a vector network analyser. Measurement Science and Technology, 32 (8). 085002 ISSN 0957-0233

Bownds, D J; Gregory, A P; Revillod, G; Cox, M G; Allal, D (2020) Calibration of reference antennas for vector measurements of SAR. NPL Report. National Physical Laboratory. TQE 15

Gregory, A P; Quéléver, K; Allal, D; Jawad, O (2020) Validation of a Broadband Tissue-Equivalent Liquid for SAR Measurement and Monitoring of Its Dielectric Properties for Use in a Sealed Phantom. Sensors, 20 (10). 2956 ISSN 1424-8220

Meaney, P M; Gregory, A P; Lahtinen, T; Paulsen, K D (2020) Comments on “Investigation of Histology Region Dielectric Measurements of Heterogeneous Tissues. IEEE Transactions on Antennas and Propagation, 68 (1). pp. 615-616. ISSN 0018-926X

Loader, B G; Gregory, A P; Mouthaan, R (2018) Formulation and properties of Liquid Phantoms, 1 MHz to 10GHz. NPL Report. TQE 9

Gregory, A P (2018) Dielectric Properties of Biological Tissues: Achieving Accurate Data as the Basis for Novel Medical Device Development. In: 12th European Conference on Antennas and Propagation (EuCAP 2018), 9-13 April 2018, London, UK.

Buchacher, T; Rokosz, M; Dorey, R*; Allam, J*; Gregory, A P (2017) Electrocaloric induced retarded ferroelectric switching. Appl. Phys. Lett., 110 (2). 022901

Gregory, A P; Blackburn, J F; Hodgetts, T E*; Clarke, R N; Lees, K; Plint, S*; Dimitrakis, G A* (2017) Traceable measurement and imaging of the complex permittivity of a multiphase rock specimen at micron scales using a microwave microscope. Ultramicroscopy, 172. pp. 65-74.

Gregory, A P; Blackburn, J F; Lees, K; Clarke, R N; Hodgetts, T E*; Hanham, S M*; Klein, N* (2016) Measurement of the permittivity and loss of high-loss materials using a near-field scanning microwave microscope. Ultramicroscopy, 161. pp. 137-145.

Meaney, P M*; Gregory, A P; Seppala, J*; Lahtinen, T* (2016) Open-ended coaxial dielectric probe effective penetration depth determination. IEEE Trans. Microw. Theory Tech., 64 (3). pp. 915-923.

Meaney, P M*; Gregory, A P; Seppala, J*; Lahtinen, T* (2016) Open-ended coaxial dielectric probe effective penetration depth determination. IEEE Trans. Microw. Theory Tech., 64 (3). pp. 915-923.

Loader, B G; Gregory, A P (2015) The performance of conducting elastomer antennas for body worn applications. In: 9th European Conference on Antennas and Propagation (EuCAP), 13-14 April 2015, Lisbon, Portugal.

Basey-Fisher, T H*; Guerra, N*; Triulzi, C*; Gregory, A P; Hanham, S M*; Stevens, M M*; Maier, S A*; Klein, N* (2014) Microwaving blood as a non-destructive technique for haemoglobin measurements on microlitre samples. Adv. Healthcare Mater., 3 (4). pp. 536-542.

Gregory, A P; Hao, L; Klein, N*; Gallop, J C; Mattevi, C*; Shaforost, O*; Lees, K; Clarke, R N (2014) Spatially resolved electrical characterisation of graphene layers by an evanescent field microwave microscope. Physica E, 56. pp. 431-434.

Klein, N*; Basey-Fisher, T H*; Otter, W J*; Guerra, N*; Triulzi, C*; Gregory, A P; Hanham, S M*; Lucyscyn, * (2013) Towards microwave and millimeter wave biosensors. In: 2013 International Kharkov Symposium on Physical and Engineering of Microwaves, Millimeter and Sunmillimeter Waves (MSMW), 23-28 June 2013, Kharkiv, Ukraine.

Loader, B G; Gregory, A P; Bownds, D; Seifert, F* (2012) Evaluation of an optical electric field sensor for measurement of specific absorption rate (SAR) during magnetic resonance imaging. In: International symposium on Electromagnetic Compatibility (EMC EUROPE 2012), 17-21 September 2012, Rome, Italy.

Hanham, S M*; Gregory, A P; Maier, S A*; Klein, N* (2012) A dielectric probe for near-field millimeter-wave imaging. In: 37th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz 2012), 23-28 September 2012, Wollongong, Australia.

Gregory, A P; Clarke, R N (2012) Tables of the complex permittivity of dielectric reference liquids at frequencies up to 5 GHz. NPL Report. MAT 23

Dawe, A S*; Bodhicharla, R K*; Graham, N S*; May, S T*; Reader, T*; Loader, B G; Gregory, A P; Swicord, M*; Bit-Babik, G*; de Pomerai, D I* (2009) Low-intensity microwave irradiation does not substantially alter gene expression in late larval and adult caenorhabditis elegans. Bioelectromanetics, 30 (8). pp. 602-612.

Gregory, A P; Clarke, R N; Cox, M G (2009) Traceable measurement of dielectric reference liquids over the temperature interval 10 ºC - 50 ºC using coaxial-line methods. Meas. Sci. Technol., 20 (7). 075106

Dimitrakis, G A*; George, M*; Poliakoff, M*; Harrison, I*; Robinson, J*; Kingman, S*; Lester, E*; Gregory, A P; Lees, K (2009) A system for traceable measurement of the microwave complex permittivity of liquids at high pressures and temperatures. Meas. Sci. Technol., 20 (4). 045901

Gregory, A P; Clarke, R N; Hodgetts, T E; Symm, G T (2008) RF and microwave dielectric measurements upon layered materials using coaxial sensors. NPL Report. MAT 13

Gregory, A P; Clarke, R N (2007) Dielectric metrology with coaxial sensors. Measurement Science and Technology, 18 (5). pp. 1372-1386.

Gregory, A P; Clarke, R N (2006) Monte-Carlo simulation of the uncertainties of coaxial sensor dielectric measurements. In: CPEM 2006 Conference on Precision Electromagnetic Measurements, 9-14 July 2006, Torino, Italy.

Gregory, A P; Clarke, R N (2006) Monte-Carlo simulation of the uncertainties of coaxial sensor dielectric measurements. In: CPEM 2006 Conference on Precision Electromagnetic Measurements, 9-14 July 2006, Torino, Italy.

Gregory, A P; Clarke, R N (2006) A review of RF and microwave techniques for dielectric measurements on polar liquids. IEEE Trans. Dielectr. Electr. Insul., 13 (4). pp. 727-743.

Dawe, A S*; Smith, B*; Thomas, D W P*; Greedy, S*; Vasic, N*; Gregory, A P; Loader, B G; de Pomerai, D I* (2006) A small temperature rise may contribute towards the apparent induction by microwaves of heat-shock gene expression in the nematode Caenorhabditis elegans. Bioelectromagnetics, 27 (2). pp. 88-97.

Gregory, A P; Clarke, R N (2005) Traceable measurements of the static permittivity of dielectric reference liquids over the temperature range 5 - 50 ºC. Meas. Sci. Technol., 16. pp. 1506-1516.

Gregory, A P; Clarke, R N (2005) Traceable measurements of the static permittivity of dielectric reference liquids over the temperature range 5 - 50 ºC. Meas. Sci. Technol., 16 (7). pp. 1506-16.

Clarke, R N; Gregory, A P; Cannell, D*; Patrick, M*; Wylie, S*; Youngs, I*; Hill, G* (2003) A guide to the characterisation of dielectric materials at RF and microwave frequencies. Institute of Measurement and Control / National Physical Laboratory. ISBN 0904457389

Gregory, A P; Clarke, R N (2002) Traceable measurements on dielectric reference liquids over the temperature range 10 - 50 ºC using coaxial-line methods. In: 2002 Conference on Precision Electromagnetic Measurements (CPEM), 16-21 June 2001, Ottawa, Canada.

Gregory, A P; Clarke, R N (2001) Tables of the complex permittivity of dielectric reference liquids at frequencies up to 5 GHz. NPL Report. CETM 33

Gregory, A P; Etzel, S; Clarke, R N (2000) Precise measurements on dielectric reference liquids over the temperature range 5-50 ºC using coaxial line methods. In: Conference on Precision Electromagnetic Measurements (CPEM) 2000, 14-19 May 2000, Sydney, Australia.

Liang, W; West, P D; Loader, B G; Lees, K; Gregory, A P; Clarke, R N (2000) Traceable calibration of specific absorbtion rate (SAR) for mobile phone dosimetry. In: Conference on Precision Electromagnetic Measurements (CPEM) 2000, May 2000, Sydney, Australia.

Loader, B G; Alexander, M J; Gregory, A P; Liang, W (2000) The use of an optically modulated field sensor to make TEM cells traceable to the NPL calculable standard dipole antenna. In: Conference on Precision Electromagnetic Measurements (CPEM) 2000, May 2000, Sydney, Australia.

Gregory, A P; Etzel, S; Clarke, R N (1999) Traceable measurements of the static permittivity of dielectric reference liquids at temperatures from 5 to 50ºC using a micrometer driven admittance cell. In: BEMC 99 - 9th International Conference on Electromagnetic Measurement, 2-4 November 1999, Brighton, UK.

Loader, B G; Alexander, M J; Gregory, A P; Liang, W (1999) The use of an optically modulated field sensor to make TEM cells traceable to NPL calculable standard dipole antenna. In: ARMMS Conference, 23-24 November 1999.

Clarke, R N; Gregory, A P; Hodgetts, T E; Simm, G T*; Brown, N* (1995) Microwave measurements upon anisotropic dielectrics - theory and practise. In: BEMC 95 7th British Electromagnetic Measurements Conference Digest, 6-9 November 1995, Malvern.

Gregory, A P; Clarke, R N; Hodgetts, T E; Symm, G T (1993) RF and microwave dielectric measurements upon layered materials using a reflectometric coaxial sensor. NPL Report. DES 125

Clarke, R N; Gregory, A P; Hodgetts, T E; Symm, G T (1993) Improvements in coaxial sensor dielectric measurement: relevance to aqueous dielectrics and biological tissue. In: IEEE Electromagnetic wave interaction with water and moist substances: Microwave aquametry; electromagnetic wave interaction with water containing materials, June 1993, Atlanta, GA, USA.

Gregory, A P; Clarke, R N (1993) Improvements in design, measurement and calibration techniques for open-ended coaxial dielectric sensors. In: 6th British Electromagnetic Measurements Conference Digest (BEMC 93), 2-4 November 1993, NPL, Teddington, UK.