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Predictive microwave device design by coupled electro-thermal simulation based on a fully physical thermal model

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7 Author(s)
Batty, W. ; Sch. of Electron. & Electr. Eng., Leeds Univ., UK ; Christoffersen, C.E. ; David, S. ; Panks, A.J.
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Coupled electro-thermal simulations are performed to demonstrate predictive design of microwave devices. These simulations are based on an original, fully physical, thermal impedance matrix approach, capable of describing `nearly exactly' time-dependent heat flow in complex 3-dimensional systems, whilst requiring no model reduction for electro-thermal CAD. This thermal model is validated by thermal imaging of passive grid arrays representative of spatial power combining architectures. Electro-thermal transient, single-tone, two-tone and multi-tone harmonic balance simulations are presented for a MESFET amplifier, by implementing the thermal impedance matrix approach in microwave circuit simulator, Transim (NCSU)

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High Performance Electron Devices for Microwave and Optoelectronic Applications, 2000 8th IEEE International Symposium on

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