Propagation characteristics of superconducting microstrip lines

Author

Mao, Shau-Gang ; Ke, Jeng-Yi ; Chen, Chun Hsiung

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

44

Issue

1

fYear

1996

fDate

1/1/1996 12:00:00 AM

Firstpage

33

Lastpage

40

Abstract

The modified spectral-domain approach is applied to study the propagation characteristics of high temperature superconducting microstrip lines whose signal strip and ground plane are of arbitrary thickness. In this study, numerical results for effective dielectric constant, attenuation constant, and strip current distribution are presented to discuss the effects due to frequency, temperature, strip thickness, and substrate loss tangent. In particular, the conductor and dielectric attenuation constants of superconducting microstrip line are depicted separately to discuss the mechanism of the line losses. A comparison with published theoretical and experimental results is also included to check the accuracy of the new approach´s results

Keywords

dielectric losses; high-temperature superconductors; microstrip lines; permittivity; spectral-domain analysis; superconducting microwave devices; waveguide theory; attenuation constant; effective dielectric constant; ground plane; high temperature superconductors; line losses; modified spectral-domain approach; propagation characteristics; signal strip; strip current distribution; strip thickness; substrate loss tangent; superconducting microstrip lines; Attenuation; Current distribution; Dielectric constant; Dielectric losses; Dielectric substrates; Frequency; High temperature superconductors; Land surface temperature; Microstrip; Strips;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.481382

Filename

481382