@article{oai:sucra.repo.nii.ac.jp:00012871, author = {HASHIMOTO, Toru and 小林, 禧夫}, issue = {5}, journal = {IEICE transactions on electronics}, month = {}, note = {Precise designs are presented for sapphire rod resonators of three types, which have been proposed by the IEC/TC90/WG8 in the standard measurement method of the surface resistance R_s of high-T_c superconductor (HTS) films; an open-type, a cavity-type and a closed-type. In order to separate TE_<011> and TE_<013> modes, which are used in Rs measurements, from the other modes, appropriate dimensions for these three resonators are determined from mode charts calculated from a rigorous analysis based on the mode matching method, taking account of an uniaxialanisotropic characteristic of sapphire. Comparison of the open-type resonator with the closed-type is performed. For the open-type, the unloaded Q values of both the TE_<011> and TE_<013> modes are reduced by radiations of a leaky state TM_<310> mode. Finally, validity of the design and a two-sapphirerod-resonator method will be verified by experiments., copyright(c)2004 IEICE 許諾番号:07RB0174  http://www.ieice.org/jpn/trans_online/index.html, text, application/pdf}, pages = {681--688}, title = {Two-Sapphire-Rod-Resonator Method to Measure the Surface Resistance of High-T_c Superconductor Films(General Methods, Materials, and Passive Circuits)(Advances in Characterization and Measurement Technologies for Microwave and Millimeter-Wave Materials, Devices and Circuits)}, volume = {E87-C}, year = {2004}, yomi = {ハシモト, トオル and コバヤシ, ヨシオ} }