MICROWAVE LOSS IN LOW-ABSORBING DIAMOND-LIKE MATERIALS AT 1 K < T < 300 K. THE PHENOMENOLOGICAL SIMULATION

Abstract

The development and manufacture of new materials for micro- and nanoelectronics are inextricably linked with the problem of studying the electromagnetic energy loss mechanisms in these materials in the gigahertz band. The reasonable technique of search for these mechanisms is the analysis of the temperature dependence of the loss tangent of such materials at temperatures from cryogenic ones to room ones. In this paper, the phenomenological simulation of loss in low-absorbing materials having a diamond-like crystal lattice is performed on the basis of experimental data. The experiments were carried out in the frequency range 60…120 GHz and at temperatures 1…300 K. The technique of measuring energy characteristics of the whispering gallery mode disk dielectric resonator is applied. As a result, the roles of main loss mechanisms for the materials under research are clarified and the values of basic physical parameters of materials are determined.

Keywords

• loss mechanisms
• low temperatures
• low-absorbing diamond-like materials
• microwave waveband