Computer Simulation of Large Josephson Arrays Radiating into Open Space

Autor: Nadezhda Vdovicheva, V. V. Kurin, Mikhail Galin, I. A. Shereshevskiy
Rok vydání: 2020
Předmět:
Zdroj: 2020 7th All-Russian Microwave Conference (RMC).
DOI: 10.1109/rmc50626.2020.9312281
Popis: The dynamics of large, significantly exceeding the wavelength open systems such as free-standing multi-wire lines with a large number of built-in Josephson junctions is analyzed using direct numerical simulation. Such systems represent the simplest version of the Josephson active antennas proposed in our earlier studies and show promise as generators of terahertz and subterahertz radiation. Detailed simulation results reveal a multitude of phase transitions between the dynamical states, which differ in the number of Josephson junctions synchronized by the excited current waves and, hence, in the intensity of radiation emitted into open space and radiation patterns.
Databáze: OpenAIRE