ARTICLES

A Practical Method for Determination of HBT Thermal

A practical and reliable method for the determination of thermal resistance and its power dependence is presented. This method requires only forward Gummel data at different ambient temperatures and at different collector-emitter bias vo...
Heterojunction bipolar transistors (HBT) have demonstrated high power output densities at microwave frequencies and are increasingly utilized in the design of RF circuits such as power amplifiers, oscillators and mixers. 1 Thus, an accurate large-signal model for HBT devices is of great importance in designing such circuits, especially when...
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