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本文采用横向谐振法和奇、偶激励法分析了平行耦合和对称弯曲耦合的沟槽型无辐射介质(GNRD)波导的耦合特性,并对实验样品进行了测试。理论计算结果和实验结果符合良好,为GNRD波导定向耦合器等元件的设计提供了理论依据。
In this paper, the coupling characteristics of parallel coupled and symmetric curved coupled grooved non-radiative dielectric (GNRD) waveguides were analyzed by transverse resonance and odd and even excitation methods. The experimental samples were tested. The theoretical calculation results agree well with the experimental ones, which provides a theoretical basis for the design of GNRD waveguide directional coupler.