Short Pulse Propagation along Microstrip Meander Delay Lines with Design Constraints: Comparative Analysis of the Quasi-static and Electromagnetic Approaches
Keywords:
Electromagnetic analysis, meander delay line, quasi-static approachAbstract
Short pulse propagation along microstrip meander delay lines is considered. Electromagnetic analysis is used in the CST MWS software. A quasistatic analysis in TALGAT software is used as another approach, for which the complete computational models for capacitive matrix calculation are presented. The results of simulations are given. It is shown that if a number of turns is increased and their length is reduced proportionally, distortions of a pulse signal in the line are reduced. At the same time, though the electrical width of the structure increases, an agreement between the results of quasi-static and electromagnetic analyses is improved. Memory costs of electromagnetic analysis and quasi-static analysis are comparable, while the latter is significantly less time-consuming. Thus, it is demonstrated that a quasi-static analysis can be quite relevant during the design of the microstrip meander delay lines with minimal distortions.
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