Multi-Method Measurement and Deviation Analysis of the Calibration Factor of an Attenuator Assembly
Year: 2026
Type: conference-paper
Abstract: Medium-power microwave traceability requires a balance between measurement accuracy and practical implementation. A power measurement assembly formed by cascading a medium-power attenuator with a microwave low-power sensor extends the measurement range, but its calibration factor, KCC, is affected by attenuator transmission characteristics, port mismatch, and connection repeatability, leading to discrepancies among different determination methods. This paper compares three approaches—the direct comparison method, the extrapolation method, and a scattering parameter based method using a three-port transfer standard — and analyzes the main error sources responsible for their differences, providing guidance for calibration implementation and consistency evaluation.
Authors: Yi Wei, Jinwen Liu, Xiaohai Cui, Wenze Yuan, Xiangjun Li
Institutions: China Jiliang University, National Institute of Metrology
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7225229489