Transient propagation in lossy coplanar waveguides

Author

Liao, Chun-Lin ; Tu, Yu-Ming ; Ke, Jeng-Yi ; Chen, Chun Hsiung

Author_Institution

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

Volume

44

Issue

12

fYear

1996

fDate

12/1/1996 12:00:00 AM

Firstpage

2605

Lastpage

2611

Abstract

Propagation of picosecond Gaussian and rectangular pulses along a lossy coplanar waveguide is investigated in detail. To this end, a new empirical formula for attenuation constant is proposed for discussing the conductor and leakage losses associated with the coplanar waveguide in which the thickness and conductivity of signal strip and ground planes are finite. This formula is obtained by comparing the results by the modified spectral-domain approach with those by the previous empirical formulas. Based on this new empirical formula, an efficient time-domain propagation model is established and applied to analyze the transient characteristics of Gaussian and rectangular pulses propagated along a lossy coplanar waveguide. In particular, the transient propagated pulses calculated by different empirical formulas are discussed and compared with those of the experimental data

Keywords

coplanar waveguides; electromagnetic wave propagation; losses; spectral-domain analysis; time-domain analysis; waveguide theory; attenuation constant; conductor losses; ground planes; leakage losses; lossy coplanar waveguides; modified spectral-domain approach; picosecond Gaussian pulses; picosecond rectangular pulses; signal strip; time-domain propagation model; transient characteristics; Attenuation; Conductivity; Conductors; Coplanar waveguides; Planar waveguides; Propagation losses; Rectangular waveguides; Strips; Time domain analysis; Transient analysis;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.554610

Filename

554610