Performance-Enhanced Complex Envelope ADI-PML for Bandpass EM Simulation

• DOI: 10.1109/lmwc.2020.3007454
• Publication Date: 2020-07-17T20:28:09Z
• Authors: Peiyu Wu; Yongjun Xie; Haolin Jiang; Liqiang Niu
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

Based on the alternating direction implicit (ADI) procedure, the complex envelope (CE) method, and the higher order (HO) concept, an unconditionally stable performance-enhanced convolutional perfectly matched layer (CPML) is proposed to efficiently simulate bandpass electromagnetic (EM) devices and signals in the finite-difference time-domain (FDTD) lattice. Through the numerical example, the proposed scheme shows the advantages of the unconditionally stable ADI procedure, HO-CPML scheme, and CE method in terms of absorbing performance, computational efficiency, and bandpass EM simulation.