Temperature and Flexing Effects on Coaxial Cable Insertion Phase, Insertion Loss, and VSWR

摘要

This paper will present test methodology, empirical results, and evaluation methods from temperature and flexure testing of flexible coaxial cable testing in accordance with the DEC 60966-1 standard [1]. Measurements of insertion phase and loss, as well as VSWR, were performed to 6 GHz with multiple samples that were simultaneously subjected to temperature increments from -40°C to 85°C. Methods for analyzing and presenting the data, which are not discussed in the IEC standard, are included. These include relating the phase change to temperature, frequency, and sample length in a manner that is easily usable from a system design standpoint. Insertion phase behavior under changing temperature and the time required to stabilize will also be addressed. Flexure involved multiple samples with initial and subsequent insertion phase characterization after multiple flexure cycles, also up to 6 GHz, will be discussed. Statistical analysis establishes mean, maximum, and minimum values for the measurement results.