Title :
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
fDate :
1/1/1996 12:00:00 AM
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;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
