학술논문
Accurate Determination of Dielectric Properties in Small, High-Permittivity Dielectric Cylinders
Document Type
Conference
Author
Source
2022 52nd European Microwave Conference (EuMC) Microwave Conference (EuMC), 2022 52nd European. :95-98 Sep, 2022
Subject
Language
Abstract
We describe a method for performing cryogenic permittivity and loss tangent measurements of small (few mm), high-permittivity dielectric cylinders used in surface impedance measurement of superconductors. We combine the use of sapphire and PTFE supports to hold the dielectric under test and provide good thermal conductivity to the cold head. Additionally, the sapphire support is used to facilitate the measurement of the cavity's metal loss and the assessment of its contribution to the overall resonator loss.