Abstract
In this paper a formula for determining the characteristic impedance of the nonradiative dielectric waveguide (NRD-guide) is presented. The numerical results are obtained, which are very useful for designing NRD waveguide components, such as impedance transformers, filters, branch-line hybrids, and active circuits. As a practical example for applying the formula, a 3 dB brainched NRD-guide directional coupler was designed and fabricated. The experiments show good consistency with the theory.
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Qi, L., Zhu, M. & Ma, H. Characteristic impedance of nonradiative dielectric waveguide and its application. Int J Infrared Milli Waves 12, 125–129 (1991). https://doi.org/10.1007/BF01009886
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DOI: https://doi.org/10.1007/BF01009886