Inicio  /  Instruments  /  Vol: 7 Par: 3 (2023)  /  Artículo
ARTÍCULO
TITULO

Planar Bragg Reflectors for Frequency-Tunable Sub-Terahertz Gyrotrons

Nikita A. Bylinskiy    
Yuriy K. Kalynov    
Valentina E. Kotomina    
Nikolay Yu. Peskov    
Mikhail D. Proyavin    
Andrei V. Savilov    
Dmitry D. Sobolev    
Alexander A. Vikharev and Vladislav Yu. Zaslavsky    

Resumen

A novel concept of a frequency-tuned sub-terahertz gyrotron based on a combination of an irregular low-frequency resonator and an external reflector has been proposed recently. A simulation was carried out for a fundamental-cyclotron-harmonic gyrotron that demonstrates the possibility of achieving high (10?30%) efficiencies in a wide (~10%) frequency range. A possible solution to the problem of narrow-band frequency-tunable external reflectors in the form of so-called modified planar Bragg structures is discussed. The manufacturing of such structures on the basis of a novel additive technology based on photopolymer 3D printing, as well as the results of ?cold? experiments of the manufactured samples, are described in the paper.

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