Modelig and Simulation of Hybrid RF Circuits Using a Versatile Compact Bondwire Model

The application of a versatile bondwire model for simulating the RF behavior of hybrid circuits is described. The bondwire model calculates the effective inductance and skin effect losses of sets of mutually coupled bondwires. Within the frequency range of 0.2 - 3 GHz the usage and accuracy of the model is demonstrated by comparing the measured and simulated small signal behavior of one stage bipolar transistor amplifier circuits. Typically gains can be simulated within 0.5 db accuracy, resonance frequencies of matching networks that are tuned with bondwire inductances within 2 %.