ACCURATE AND EFFICIENT MODELING METHOD FOR TERAHERTZ BRANCH WAVEGUIDE DIRECTIONAL COUPLER
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United States of America Patent
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Jun 25, 2020
app pub date -
Jun 25, 2019
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Dec 25, 2018
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Abstract
The present invention discloses an accurate and efficient modeling method for the terahertz branch waveguide directional coupler, which uses mode matching method (MMM) to take into account the effects on the coupler field distribution caused by the branch structure discontinuity, combines odd and even mode analysis method to further simplify the derivation process, and finally obtains a simplified and accurate calculation formula of the coupling degree, which the latter produces a new conclusion that when the work frequency of the branch waveguide directional coupler is determined, the coupling degree thereof is determined by the sum of the branch widths. The modeling method of the present invention has the characteristics of simplicity, which can greatly shorten the modeling time and improve the efficiency of the modeling compared with the traditional modeling method. In addition, the modeling method has the characteristics of universality.
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