FSRFT Based Broadband Double Matching via Passband Extremums Determination

Year 2018, Volume: 6 Issue: 3, 165 - 171, 31.07.2018

Ramazan Kopru

https://doi.org/10.17694/bajece.421266

Cited By: 1

Abstract

Fast simplified real frequency technique (FSRFT)
is a numerical solver used to solve microwave broadband double-matching (DM)
circuit design problems in a much faster and effective manner. Recently, it has
been reported that an FSRFT based Matlab code can complete the design of a  order
lowpass lumped element double matching network to match a given generator and
load impedance within an optimization time of only 0.6 seconds, a 47 fold less time
than that of the same design done using the classical simplified real frequency
technique (SRFT). FSRFT owes this superior speed performance to the fact that
it tracks only  (system
unknowns  plus 1) number
of passband extremum points selected from among the  number of
gain data (). This work introduces a simple numerical
technique called PED (passband extremums determination technique) to be used in
determination of these passband extremum points (PEs). An exemplary  order microwave
bandpass DM circuit design using FSRFT based Matlab (of Mathworks Inc.) code
and the simulation of this design via MWO (of AWR Corp.) has yielded the same
circuit performance with an exact agreement. Thus, FSRFT, equipped with the PED,
newly proposed hereby, might be used as a powerful solver in designing
broadband circuits in many fields such as RF/microwave, radar, and communications.

Keywords

Broadband matching, Microwave filters, Optimization

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