Measurement precisions of surface resistance of high-Tc superconductor films by dielectric resonator method

• OKAJIMA Shingo

  Faculty of Engineering, Saitama University

• YOSHIKAWA Hiromichi

  Faculty of Engineering, Saitama University

• KOBAYASHI Yoshio

  Faculty of Engineering, Saitama University

Bibliographic Information

Other Title

• 誘電体共振器法による高温超伝導薄膜の表面抵抗の測定精度

Abstract

For microwave measurement of surface resistance R_s of superconductors, measurement precisions are discussed for dielectric resonator methods of two types ; one uses a TE_011 resonator and a TE_013 resonator (a two-resonator method) and the other uses TE_012 and TE_021 modes of a dielectric resonator (a one-resonator method). It is found that measurement error for R_s of YBCO films is 10 percents for the two-resonator method using sapphire rods and 40 percents for the one-resonator method using BMT ceramic rod. Therefore, it is essential to use the low loss dielectric material for the measurement low R_s value. Moreover, we calculate the best diameter to length ratio of dielectric rod to measure the superconductor plates and films with the smallest area.

Journal

• IEICE technical report. Microwaves

  IEICE technical report. Microwaves 98 (419), 27-32, 1998-11-19

  The Institute of Electronics, Information and Communication Engineers

Keywords

• high-Tc superconductors
• microwave
• surface resistance

Details

• CRID: 1570854177406574848
• NII Article ID: 110003189752
• NII Book ID: AN10013185
• Text Lang: ja
• Data Source:
  • CiNii Articles