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Rapid Design Tuning of Miniaturized Rat-Race Couplers Using Regression-Based Equivalent Network Surrogates
Abstract
A simple technique for fast design tuning of compact rat-race couplers is presented. Our approach involves equivalent circuit representation, corrected by nonlinear functions of frequency with coefficients extracted through nonlinear regression. At the same time, the tuning process connects two levels of coupler representation: EM simulation of the entire circuit and re-optimization of the coupler building blocks (slow-wave cells and folded transmission lines) with specifications obtained by appropriate manipulation of the corrected network model. The latter is driven by the necessity of accounting for EM cross-couplings within the coupler that result in performance degradation. Demonstration examples of a miniaturized rat-race coupler indicate that rapid and reliable design closure (at a cost of two or three coupler simulations) can be accomplished even for strong cross-couplings within the structure.
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Authors (3)
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John W. Bandler
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Details
- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- 2018 IEEE/MTT-S International Microwave Symposium - IMS strony 101 - 103
- Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Kurgan P., Kozieł S., Bandler J.: Rapid Design Tuning of Miniaturized Rat-Race Couplers Using Regression-Based Equivalent Network Surrogates// 2018 IEEE/MTT-S International Microwave Symposium - IMS/ : , 2018, s.101-103
- DOI:
- Digital Object Identifier (open in new tab) 10.1109/mwsym.2018.8439836
- Verified by:
- Gdańsk University of Technology
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