Hybrid Mode Dispersion Characteristic Dependences of Cylindrical Dipolar Glass Waveguides on Temperatures

S. Asmontas, L. Nickelson, A. Bubnelis, R. Martavicius, J. Skudutis


In this work for the first time we present the dispersion characteristic analysis of open circular dipolar glass waveguides at the temperatures 130 ≤ T ≤ 200KWe demonstrate here the complex longitudinal propagation constants of the main mode HE11 in the frequency range from 1 GHz to 150 GHz for four values T when the waveguide radius is R = 1 mm. We give the propagation constant dependencies when waveguides have radii equal to 1 mm, 2 mm, 3 mm at T = 150 K. We present the dispersion characteristics of main HE11 and two higher hybrid EH11 and HE12 modes of the waveguide with the radius equal to 1 mm at T = 130 K. We demonstrate here also the waveguide broadbandwidth dependencies on the temperatures at three waveguide radii 1 mm, 2 mm and 3 mm. We discovered several important features of the dipolar glass waveguides that could be used for working out the microwave devices.

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