Spectral domain formulation for superconducting microstrip lines with arbitrary strip thickness

Author

Shalaby, A.-A.T.K.

Author_Institution

Fac. of Electron. Eng., Menoufia Univ., Egypt

fYear

1992

fDate

18-25 June 1992

Firstpage

990

Abstract

A rigorous formulation is carried out for a superconducting microstrip line with an arbitrary strip thickness. The superconducting strip is modeled by an equivalent impedance sheet in the formulation. The surface impedance of the sheet is obtained in a general closed form which is a function of the strip parameters. The transmission characteristics of superconducting microstrip lines are calculated using the derived formula and presented for comparison. Numerical results for the phase and attenuation constants of microstrip lines are computed using the two-fluid model for the sake of comparison with other methods. It is concluded that the approach presented here can accurately predict the characteristics of normal conducting and superconducting microstrip lines as well as other planar transmission lines with finite strip thickness.<>

Keywords

microstrip lines; spectral-domain analysis; superconducting microwave devices; waveguide theory; attenuation constant; equivalent impedance sheet; phase constant; planar transmission lines; spectral domain formulation; strip parameters; strip thickness; superconducting microstrip lines; surface impedance; transmission characteristics; two-fluid model; Attenuation; Current density; Electromagnetic modeling; Electromagnetic scattering; Marine vehicles; Microstrip; Propagation losses; Strips; Superconducting transmission lines; Surface impedance;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-0730-5

Type

conf

DOI

10.1109/APS.1992.221781

Filename

221781