Equivalent circuit model based on spectral Green's function representation for photo-conductive slot antennas

Abstract

Summary form only given. The generation of THz signals resorting to photosensitive semiconductors has been the object of various analysis in the recent years. Typically, such sources consist in a optically pumped semiconductor which is coupled to an antenna to generate THz power. In this paper a theoretical model, based on a spectral Green's function formulation, for infinite slot fed by a THz photoconductor generator is shown. An equivalent circuit model is then derived, which gives a description of the involved THz power generation and radiation mechanisms. Such model is a useful engineering tool for the analysis and the design of photo-conductive slot antennas.