A Hybrid Volume-Surface Integral Spectral-Element Time-Domain Method for Nonlinear Analysis of Microwave Circuit

作者：Chen, Shitao; Ding, Dazhi^*; Chen, Rushan

来源：IEEE Antennas and Wireless Propagation Letters, 2017, 16: 3034-3037.

DOI：10.1109/LAWP.2017.2759147

• Discrete Newton-Raphson method
• field-circuit coupling method
• physical-model-based circuit

This letter presents a field-circuit coupling method for analysis of microwave circuit included with nonlinear physical-model-based semiconductor devices. The electromagnetic field is analyzed by the time-domain volume-surface integral equation (TD-VSIE) and the physical-model-based semiconductor is solved by spectral-element time-domain method. The discrete Newton-Raphson method is employed to solve the proposed field-circuit coupling equations. Compared to the traditional field-circuit coupling method in TD-VSIE, the proposed method can analyze not only the equivalent-model-based semiconductor circuit, but also the physical-model-based one. Finally, numerical results are given to demonstrate the accuracy and efficiency of the proposed method.

• 出版日期2017
• 单位南京理工大学