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This paper develops planar circuit filters consisting of arbitrarily-shaped conductor patches and slots on conductor-backed dielectric substrate, which are designed by optimization technique based on the genetic algorithm. The developed filter has multiple resonators and their mutual couplings in the limited space by using both sides of the substrate, so that its high-performance and compactness are...
This paper proposes a design method of arbitrarily- shaped bandpass filters with multiple resonators in the limited space. Although the proposed method is based on the genetic- algorithm (GA) optimization, we newly introduce the fitness function which estimates not only the magnitude of S-parameters but also the phase characteristics in a passband. Conventional GAs without phase evaluation are difficult...
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