Evaluation of S-Parameter/Impedance Measurement System Frequency up to 110 GHz with waveguide connector at CMS

In this year, we are evaluating our Scattering-parameter/ Impedance measurement system and extending the measurement frequencies range up to 110 GHz at CMS (Center for Measurement Standards) in Taiwan. The evaluated method of vector network analyzer (VNA) is based on metrology guide EURAMET cg-12 [1]. It is shown in this paper that the WR10 waveguide connector type evaluation result of the measurement uncertainties of VAN. We have designed CCD vision position platform to ensure that the coaxial and waveguide type connector could be paralleled.