https://doi.org/10.1140/epjd/s10053-021-00306-1
Regular Article – Optical Phenomena and Photonics
Study of compact terahertz source with parallel multi-beam
1
THz Center, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, 610054, Chengdu, China
2
School of Computer Science, Southwest Petroleum University, 610500, Chengdu, China
Received:
12
September
2021
Accepted:
31
October
2021
Published online:
23
November
2021
In this paper, a compact terahertz (THz) radiation source with a slow wave structure (SWS) consisting of multi-pin rectangular waveguide based on parallel multiple beams is proposed. The dispersion and coupling impedance of the SWS are studied in detail. For this type of parallel multi-beam, a model of electron gun and hybrid structure of a periodic permanent magnet is designed and optimized by analyzing the electron trajectory. Furthermore, a backward wave oscillator (BWO) with the SWS and multi-beam operating above 320 GHz is simulated by a PIC code. Simulation results show that the THz source can operate with a high power, low voltage, low current, compact size and light weight.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2021
