| 摘要: |
| 对计算微带电路S参数的改进谱域Prony方法进行研究，分析比较时域有限差分法（FDTD）中波端口激励方式和模式端口激励方式，提出采样间隔选取标准，然后通过几个实际的工程算例来讨论改进谱域Prony方法的性能。数值结果表明,在非常小的采样间隔条件下改进谱域Prony方法仍可以准确计算相位常数和S参数。 |
| 关键词: 微带电路 谱域Prony方法 FDTD激励方式 采样间隔 |
| DOI： |
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| 基金项目: |
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| Study on sampling interval in spectral domain Prony′s method |
| GAO Li-xin,GONG Zhu-qian,LI Yuan-xin |
| () |
| Abstract: |
| The improved spectral domain Prony′s method that calculates S-parameters for microstrip circuits is investigated. Mode-port excitation technique and wave-port excitation technique in the finite difference time domain method (FDTD) are analyzed and compared.A sampling interval selection criterion is proposed. Several practical engineering examples are provided to demonstrate the performance of the improved spectral domain Prony′s method. Numerical results show that the phase constant and S-parameters still can be accurately calculated under very small sampling interval condition with the improved spectral domain Prony′s method. |
| Key words: microstrip circuit spectral domain Prony′s method FDTD excitation mode sampling interval |
