Attenuation analysis of superconducting transmission line using two dimensional Time-Dependent-Ginzburg-Landau equation

Author

Yoshimori, S. ; Kobayashi, A. ; Kawamura, M.

Author_Institution

Takushoku Univ., Tokyo, Japan

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

3054

Lastpage

3057

Abstract

Using the two dimensional Time-Dependent-Ginzburg-Landau equation, we analyzed the relationship between the propagation power and the attenuation of a superconducting microstrip line. An analytical solution was derived by the iteration method under the assumptions that the propagation mode was the TEM mode and that the vector potential exponentially decayed in the superconductor. In the case of a Nb-SiO/sub 2/-Nb structure microstrip line at 4.2 K, the power attenuation increased about 30% when the propagation power increased 20 dB at frequencies greater than 400 GHz.

Keywords

Ginzburg-Landau theory; iterative methods; microstrip lines; superconducting microwave devices; superconducting transmission lines; transmission line theory; 4.2 K; 400 GHz; Nb-SiO/sub 2/-Nb; TEM mode; attenuation; iteration method; propagation power; superconducting microstrip line; superconducting transmission line; two-dimensional time-dependent Ginzburg-Landau equation; vector potential; Attenuation; Dielectrics; Equations; Frequency; Microstrip; Microwave propagation; Strips; Superconducting filters; Superconducting microwave devices; Superconducting transmission lines;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783673

Filename

783673