射频功率器件宽带多层TRL校准算法研究  

Research on Broadband Multi-tier TRL Calibration Algorithm for RF Power Devices

作　　者：赵思源 王翔[1] 苏江涛[1] 王飞 刘军[1] ZHAO Si-yuan;WANG Xiang;SU Jiang-tao;WANG Fei;LIU Jun(Key Laboratory of RF Circuits and Systems,Hangzhou Dianzi University,Hangzhou,Zhejiang 310018,China)

机构地区：[1]杭州电子科技大学射频电路与系统教育部重点实验室,浙江杭州310018

出　　处：《计量学报》2022年第6期792-798,共7页Acta Metrologica Sinica

基　　金：国家自然科学基金(61827806,61871161);电子测量技术重点实验室开放基金(6142001190103)。

摘　　要：多层TRL校准是微波毫米波大功率器件测试中常用的一种校准方法。针对经典TRL校准方法在大功率器件测试中易出现的误差系数相位跳变问题,提出了一种结合先验知识和动态最小化误差逼近的宽带TRL校准优化算法。基于国产AV3672矢量网络分析仪和负载牵引测试系统在3.8 GHz及三次谐波对该算法的有效性进行了验证。实验结果证明,该算法有效地修正了误差系数相位跳变的问题,对器件大信号工作状态最优阻抗点的分析更为准确,并且算法复杂度没有大幅增加,可以应用为经典TRL算法的后续修正步骤,具备极强的实用性和通用性。Multi-tier TRL calibration is one of the commonly used calibration methods for measuring microwave millimeter-wave high power devices.A broadband TRL calibration optimization algorithm that combines a priori knowledge and dynamic minimization of error approximation is proposed to address the issue of the phase shift of error coefficients that can occur in classical TRL calibration methods for high power device measurement.Based on the domestic AV3672 vector network analyzer and system of load pull measurement at 3.8 GHz with the third harmonic to verify the validation of the algorithm.The experimental results prove that the algorithm effectively corrects the phase shifts of the error coefficients,and the analysis of the optimal impedance point of the large signal operation of the device is more accurate,and the complexity of the algorithm does not increase significantly,it can be applied as a subsequent correction step of the classical TRL algorithm,which is highly practical and versatile.

关 键 词：计量学 TRL 大功率器件 误差系数 负载牵引 最优阻抗点 

分 类 号：TB973[一般工业技术—计量学]