Title :
A wide bandwidth coupler for a Free Electron Maser Amplifier
Author :
Gamble, D. ; Foster, P.R.
Author_Institution :
Defence Sci. & Technol. Lab., Fareham, UK
Abstract :
The Coupler described in this paper is designed to separate the hot electron beam and the very high power microwave signal in a Free Electron Maser Amplifier. This coupler has been designed, built and tested and is intended for operation across the 8 to 18 GHz frequency band. It consists of an arc of quad-ridged waveguide with the electron beam entering between ridges. The Return Loss is better than -30 dB across the band with a insertion loss less than 0.1 dB.
Keywords :
free electron lasers; masers; waveguide couplers; -30 dB; 0.1 dB; 8 to 18 GHz; free electron maser amplifier; high power microwave signal; hot electron beam; insertion loss; quad-ridged waveguide arc; return loss; wide bandwidth coupler; Bandwidth; Electron beams; Frequency; High power amplifiers; Insertion loss; Masers; Microwave amplifiers; Optical coupling; Signal design; Testing;
Conference_Titel :
Vacuum Electronics Conference, 2002. IVEC 2002. Third IEEE International
Print_ISBN :
0-7803-7256-5
DOI :
10.1109/IVELEC.2002.999347
