Modelling of VHF and microwave power transistors operating in quasi-saturation
1982; Elsevier BV; Volume: 25; Issue: 8 Linguagem: Inglês
10.1016/0038-1101(82)90201-5
ISSN1879-2405
AutoresAdrian Alden, Arthur Boothroyd,
Tópico(s)Electromagnetic Compatibility and Noise Suppression
ResumoAbstract The modelling of VHF and microwave power transistors operating under quasi-saturation conditions is treated. Physical effects in the collector region are considered to be dominant in these devices under such circumstances, and a representation of the collector involving a variable-width charge-storage region, modelled in two-lump form, is developed in order to characterize device behaviour. A systematic procedure is presented for the evaluation of the parameters of the collector region model. The model has demonstrated its ability to describe device characteristics and performance under d.c., step transient and large signal sinusoidal drive conditions; typical results are presented.
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