Design of stepped microstrip components
Abstract
The analysis of the impedance step by the mode matching procedure using a waveguide model for the microstrip line yields an explicit design formula for the frequencydependent equivalent series inductance. The singlesection quarterwavelength transformer is calculated under the assumption of interacting steps. It turns out that in regard to practical design the neighboring steps can be considered to be decoupled so that the calculation can be done simply with the results given before. Finally the derived results for the impedance step are used to calculate the scattering matrix of an nsection tapered transmission line. Experimental data show good agreement with theory.
 Publication:

Radio and Electronic Engineer
 Pub Date:
 February 1978
 Bibcode:
 1978RaEE...48...53K
 Keywords:

 Electrical Impedance;
 Frequency Response;
 Impedance Matching;
 Microstrip Transmission Lines;
 Network Synthesis;
 Waveguides;
 Decoupling;
 Design Analysis;
 Equivalent Circuits;
 Inductance;
 Propagation Modes;
 S Matrix Theory;
 Transformers;
 Electronics and Electrical Engineering