Title :
Quasi-static conductor loss calculations in transmission lines using a new conformal mapping technique
Author :
Tuncer, Emre ; Lee, Beom-Taek ; Islam, M. Saiful ; Neikirk, Dean P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
fDate :
9/1/1994 12:00:00 AM
Abstract :
A new approximation technique to find the total series impedance per unit length for quasi-TEM transmission lines including conductor loss has been developed. It is shown through the use of conformal mapping that both frequency dependent skin-depth and proximity effects can be accurately modeled. Comparison between experimental measurements and calculations for twin-lead, coplanar strips, parallel square bars, and coplanar waveguide all show excellent agreement. This technique is easily generalized to any transmission line making use of polygonal cross-section conductors
Keywords :
approximation theory; electric impedance; losses; skin effect; strip lines; transmission line theory; waveguide theory; CPW; approximation technique; conductor loss calculations; conformal mapping technique; coplanar strips; coplanar waveguide; frequency dependent skin-depth; parallel square bars; polygonal cross-section conductors; proximity effects; quasi-TEM lines; total series impedance per unit length; transmission lines; twin-lead; Conductors; Conformal mapping; Coplanar transmission lines; Frequency dependence; Impedance; Propagation losses; Proximity effect; Strips; Transmission line measurements; Transmission lines;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
