Design and Optimization of RF Impedance Matching Network Based on ADS and SIwave

Proceedings of the 2022 6th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2022-10-21 DOI:10.1145/3573428.3573431

Jianhua Li, Kang Zhuo, Yifan Hu, Bin You, Changjian Liu, Shanxu Cao, Lehou Xi

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Abstract

Impedance matching networks using discrete components are generally connected on the PCB through microstrip transmission lines. Affected by the impedance discontinuity and distribution parameters of the transmission line, the impedance matching network simply designed according to the input and output impedance of the device cannot accurately match the port impedance to the target impedance. Therefore, this paper introduces a method for designing and optimizing impedance matching circuits using ADS and SIwave. The microstrip line at the input and output of RF device is modeled by SIwave, and the S parameter is extracted. Then the ADS software is used to connect the S-parameter model of the device, the S-parameter model of the microstrip line, and the actual parameter model of the inductor and capacitor to carry out impedance matching design. The simulation results show that the method can optimize the return loss of the port to meet the design requirements.

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使用分立元件的阻抗匹配网络通常通过微带传输线连接在PCB上。受传输线阻抗不连续和分布参数的影响，单纯根据设备的输入输出阻抗设计阻抗匹配网络，无法将端口阻抗精确匹配到目标阻抗。因此，本文介绍了一种利用ADS和SIwave设计和优化阻抗匹配电路的方法。利用SIwave对射频器件输入和输出处的微带线进行建模，提取S参数。然后利用ADS软件将器件的s参数模型、微带线的s参数模型、电感和电容的实际参数模型连接起来，进行阻抗匹配设计。仿真结果表明，该方法可以优化端口回波损耗，满足设计要求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 2022 6th International Conference on Electronic Information Technology and Computer Engineering

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