Improved PEEC Modeling of Antennas Through Time-Dependent Partial Elements

Improved PEEC Modeling of Antennas Through Time-Dependent Partial Elements

Paper in proceedings (conference paper)

Over the last twenty years, the evolution of communications has extended the systems' operating frequency range to the tens of GHz. In this framework, time domain integral equation-based (TDIE) methods for antenna modeling have gained increasing interest. Among them, the Partial Elements Equivalent Circuit (PEEC) method turns out to be attractive for its capability to provide compact circuit models. Similarly to other integral equation-based methods, like the method of moments (MoM) in the time domain (TD), the PEEC method can suffer from late-time instabilities. This work shows that a rigorous computation of the time-dependent partial elements leads to an improved TD formulation of the PEEC method that exhibits better behavior at high frequencies. This is the fundamental premise for having more stable results, preventing the late-time instabilities from appearing in the time domain.

Over the last twenty years, the evolution of communications has extended the systems' operating frequency range to the tens of GHz. In this framework, time domain integral equation-based (TDIE) methods for antenna modeling have gained increasing interest. Among them, the Partial Elements Equivalent Circuit (PEEC) method turns out to be attractive for its capability to provide compact circuit models. Similarly to other integral equation-based methods, like the method of moments (MoM) in the time domain (TD), the PEEC method can suffer from late-time instabilities. This work shows that a rigorous computation of the time-dependent partial elements leads to an improved TD formulation of the PEEC method that exhibits better behavior at high frequencies. This is the fundamental premise for having more stable results, preventing the late-time instabilities from appearing in the time domain.

Partial element equivalent circuit method; late time instabilities; passivity; transient analysis; antennas

Partial element equivalent circuit method; late time instabilities; passivity; transient analysis; antennas

LORETO, F.; PETTANICE, G.; ŠTUMPF, M.; RUEHLI, A.; EKMAN, J.; ANTONINI, G.

2025

26.04.2024

IEEE

Glasgow, United Kingdom

978-88-31299-09-1

Proceedings of the 18th European Conference on Antennas and Propagation

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https://ieeexplore.ieee.org/document/10501418