Perturbationiteration theory for analyzing microwave striplines
Abstract
A perturbationiteration technique is presented for determining the propagation constant and characteristic impedance of an unshielded microstrip transmission line. The method converges to the correct solution with a few iterations at each frequency and is equivalent to a full wave analysis. The perturbationiteration method gives a direct solution for the propagation constant without having to find the roots of a transcendental dispersion equation. The theory is presented in detail along with numerical results for the effective dielectric constant and characteristic impedance for a wide range of substrate dielectric constants, stripline dimensions, and frequencies.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 September 1985
 Bibcode:
 1985STIN...8535321K
 Keywords:

 Iteration;
 Microstrip Transmission Lines;
 Microwave Transmission;
 Perturbation Theory;
 Wave Propagation;
 Field Theory (Algebra);
 Impedance;
 Permittivity;
 Wave Dispersion;
 Communications and Radar