2014/04/21 by S. N. Maslennikov, Sergey Maslennikov, Maslennikov, Sergey
Physics and Astronomy · #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Physics of Superconductivity and Magnetism #Superconducting and THz Device Technology #Superconductivity (cond-mat.supr-con) #Superconductivity in MgB2 and Alloys #astro-ph.IM #cond-mat.supr-con #physics.comp-ph #physics.ins-det
paper · pdf · doi:10.48550/arxiv.1404.5276
openalex publication_date 2014/04/21 · arxiv created 2014/04/30 · arxiv updated 2014/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We report results of the numerical solution by the Euler method of the system of heat balance equations written in recurrent form for the superconducting hot-electron bolometer (HEB) embedded in an electrical circuit. By taking into account the dependence of the HEB resistance on the transport current we have been able to calculate rigorously the RF heating efficiency, absorbed local oscillator (LO) power and conversion gain of the HEB mixer. We show that the calculated conversion gain is in excellent agreement with the experimental results, and that the substitution of the calculated RF heating efficiency and absorbed LO power into the expressions for the conversion gain and noise temperature given by the analytical small-signal model of the HEB yields excellent agreement with the corresponding measured values.