作者：吴爱华¹, 刘晨¹, 陈锋², 梁法国¹

作者单位：1. 中国电子科技集团公司第十三研究所, 河北 石家庄 050051;
2. 罗德与施瓦茨(中国)科技有限公司, 北京 100012

关键词：矢量网络分析仪;噪声测量;冷源法;噪声选件

摘要：

为解决矢网中噪声选件的计量问题，分析当前该类产品的测量原理，指出现有校准方法无法对矢网中噪声选件开展计量的原因。参照当前矢网的校准方法，提出一种整体校准方案，并报道该方案的基本要求。基于无源器件的噪声稳定特点，提出失配空气线和衰减器作为检验件的新型实现形式。在对比分析现有矢量和标量两种方法无源器件噪声标准值计算方法的基础上，报道检验件标准值包含温度信息的矢量计算方法。通过检验件与低噪声放大器级联的方式，实现矢网中噪声选件的整体校准。该方案分别在Keysight公司和RS公司的产品中进行试验，测量频段6~18 GHz，校准结果的偏差分别为0.4 dB和0.6 dB。

Study on calibration method of vector network analyzer with noise option

WU Aihua¹, LIU Chen¹, CHEN Feng², LIANG Faguo¹

1. The 13 th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang 050051, China;
2. Rohde and Schwarz(China) Technology Co., Ltd., Beijing 100012, China

Abstract: In order to solve the calibration problem of vector network analyzer with noise options, the principle of measurement for current products is analyzed and the reason why existing calibration method fails to calibrate the vector network analyzer with noise options is found out. Referring to the calibration method of the current vector network, an overall calibration scheme is proposed and the basic requirements of the scheme are presented. Based on the characteristics of passive components, such as stable noise, a new method that takes mismatch air line and attenuator as test pieces is presented. Based on the comparative analysis of the existing methods for calculating the standard values of the noise of passive components in two kinds of vector and scalar methods, this paper presents a vector calculation method for the standard values of test pieces including temperature information. The cascade of the test piece and the LNA is a good method to realize the whole calibration of the vector network analyzer with noise options. The scheme was tested in Keysight company and R&S company respectively. The measured frequency range was 6-18 GHz, and the deviation of calibration results was 0.4dB and 0.6dB respectively.

Keywords: vector network analyzer;noise measurement;cold source method;noise option

2017, 43(8): 6-10  收稿日期: 2017-02-10;收到修改稿日期: 2017-03-09

基金项目: 

作者简介: 吴爱华(1980-),男,河北涿鹿县人,高级工程师,硕士,研究方向为微电子仪器计量技术。

参考文献

[1] 杨婷. 不同仪器对噪声系数测量的方法[J]. 黑龙江科技信息,2014(34):80-82.
[2] 噪声系数分析仪校准规范:JJF 1460-2014[S]. 北京:中国质检出版社,2014.
[3] 王成,李凯峰,宋晓婵,等. PNA,ZVA系列矢网在多参数计量方面溯源探讨[J]. 计测技术,2015(s1):213-216.
[4] 西林. 矢量网络分析仪测量噪声系数[J]. 电子测试,1999(3):33-34.
[5] 吴爱华,梁法国,刘强,等. 微波低噪声封装器件噪声参数测量技术[J]. 半导体技术,2013,38(4):312-316.
[6] High-Accuracy Noise Figure Measurements Using the PNA-X Series Network Analyzer[Z]. Agilent Technologies.
[7] 刘峰,邵晖,李远朝,等. 射频电路噪声系数的测量方法研究[J]. 国外电子测量技术,2014,33(12):4-8,20.
[8] FRⅡS H T. Noise figures of radio receivers[J]. Proceedings of the Ire,1944,32(7):419-422.
[9] Noise Figure Measurement without a Noise Source on a Vector Network Analyzer Application Note[Z]. Rohde& Schwarz.
[10] 郭海帆,陈建华,陈鑫友,等. 基于矢量网络分析仪功率测量的噪声系数测量方法[J]. 中国测试,2014,40(6):35-37.
[11] FRAZER A, STRID E, LEAKE B, et al. Repeatability and verification of on-wafer noise parameter measurements[J]. Micrwave Journal,1988,31(11):172-176.
[12] ESCOTTE L, PLANA R, RAYSSAC J, et al. Using cold FET to check accuracy of microwave noise parameter test set[J]. Electronics Letters,1991,27(10):833-835.