A novel algorithm for detecting the operating state of a calibrated two-port vector network analyzer

作者：Shang Zanyu; Chen Xiaolong; Wang Jiali

来源：2013 2nd International Conference on Measurement, Information and Control, ICMIC 2013, 2013-08-16 to 2013-08-18.

DOI：10.1109/MIC.2013.6757930

• Calibration method
• Error model
• Nonlinear functions
• Novel algorithm
• Operating state
• Short-open-load-thru
• Two-port VNA
• Vector network analyzers

A novel algorithm is presented for detecting the operating state of a calibrated two-port vector network analyzer (VNA) which is based on the general 12-term error model. Compared with the Short-Open-Load-Thru (SOLT) calibration method where the 12-term errors must be derived from the nonlinear functions of the actual S-parameters and the measured S-parameters by using an ideal standard kit, the proposed method finds a new way to solve these non-linear equations with just three known of the non-ideal Short-Open-Load (SOL) standards and a zero-length lossless transmission line as the ideal Thru (T) standard. Thus it not only reduces the impact due to the non-ideal standard kit, but also simplifies the complexity of the detecting procedure. The actual S-parameters of a two-port device can be corrected by this new algorithm directly and compared with measurement results by AV3620. The good agreement attests the precision of the new detecting algorithm.

• 出版日期2013
• 单位西安电子科技大学