Waveform measurement in mocrowave device characterization: impact on power amplifiers design

Autor: Roberto Quaglia, James Bell, Steve Cripps, Paul Tasker

Publikováno v: Ingeniería Investigación y Desarrollo, Vol 16, Iss 2, Pp 6-11 (2016)

This paper describes an example of a measurement setup enabling waveform measurements during the load-pull characterization of a microwave power device. The significance of this measurement feature is highlighted showing how waveform engineering can

Externí odkaz: https://doaj.org/article/e48c750f712c4ce8b13615572cad24ac

Comparative Evaluation of Optimum Power and Efficiency Terminations Predicted by Alternative Methods for GaN Ka-band Power Amplifier Design

Autor: Ferdinando Costanzo, Patrick E. Longhi, Mikko Kantanen, Rocco Giofre, Walter Ciccognani, Sergio Colangeli, Roberto Quaglia, Mikko Varonen, Paul Tasker, Ernesto Limiti

Publikováno v: Costanzo, F, Longhi, P E, Kantanen, M, Giofre, R, Ciccognani, W, Colangeli, S, Quaglia, R, Varonen, M, Tasker, P & Limiti, E 2022, Comparative Evaluation of Optimum Power and Efficiency Terminations Predicted by Alternative Methods for GaN Ka-band Power Amplifier Design . in Proceedings of the 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, INMMiC 2022 . IEEE Institute of Electrical and Electronic Engineers, International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, INMMiC 2022, Cardiff, United Kingdom, 7/04/22 . https://doi.org/10.1109/INMMiC54248.2022.9762218

A comparative evaluation is provided in this paper regarding two design approaches for Ka-band Gallium Nitride Power Amplifiers. The first approach uses the standard electrical models provided by the foundry, while the alternative approach uses a cus

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a12cbd1748fd2333e92def4a410d882b
https://doi.org/10.1109/inmmic54248.2022.9762218

Gate bias voltage dependence of Cardiff admittance model in Ka-band GaAs pHEMTs

Autor: Alexander Baddeley, Ehsan Azad, Roberto Quaglia, James Bell, Paul Tasker

Publikováno v: 2022 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR).

This paper analyzes the dependence vs. gate bias voltage of the coefficients of the Cardiff model in the admittance form. The load-pull measurement data used to extract the model, inclusive of input power sweep, is taken on a GaAs pseudomorphic high

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53f2778ece1f12e1f1f16508c425f44a
https://doi.org/10.1109/pawr53092.2022.9719858

The Development of a UK National Strategy for Through-Life Engineering Services: Rationale and Process

Autor: Paul Tasker, Andy Shaw

Publikováno v: Advances in Through-life Engineering Services ISBN: 9783319499376

This chapter describes the journey of the development of the UK National Strategy for Through-life Engineering Services (TES) from initial discussions with industry as to the need, through the issuing of a number of sector strategies in the UK, which

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::88c618762a0011791913067b25cb89a0
https://doi.org/10.1007/978-3-319-49938-3_2

Through-life Engineering Services – Innovation and the Role of Standards

Autor: Paul Tasker, Sarah Kelly, Andy Shaw

Publikováno v: Procedia CIRP. 22:197-203

The paper documents findings from a brief study to consider a strategy (or strategic options) for the British Standards Institution (BSI) to enable the development of Standards to promote innovation in the field of “through-life engineering service

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::586f6bee9ced77846d260f30c8a260a3
https://doi.org/10.1016/j.procir.2014.07.150