Title :
SUNRAY-1D and SUNRAY-2.5D codes for large-signal analysis of a space TWT
Author :
Srivastava, Vishnu SrivastavaVishnu
Author_Institution :
Central Electron. Eng. Res. Inst. (CEERI), Pilani, India
Abstract :
One-dimensional (SUNRAY-1D), and two and half dimensional (SUNRAY-2.5D) codes are developed for accurate, fast and reliable multi-signal large signal analysis of a complete helix-type space TWT. Detailed beam and rf field parameters including inter-modulation components and higher-order time harmonics are simulated accurately for a high efficiency space TWT. The spent electron beam data of SUNRAY-2.5D code is used successfully for design of beam refocusing section and multi-stage depressed collectors for various space TWTs. Space TWTs of different frequencies (C-band, Ku-band, Ka-band and W-band), and of different power levels have been designed successfully.
Keywords :
travelling wave tubes; RF field parameters; SUNRAY-1D codes; SUNRAY-2.5D codes; beam refocusing section; detailed beam field parameters; helix-type space TWT; high efficiency space TWT; higher-order time harmonics; intermodulation components; large-signal analysis; multisignal large signal analysis; multistage depressed collectors; spent electron beam data; Analytical models; Electron beams; Electron tubes; Frequency modulation; Radio frequency; Reliability; Time-frequency analysis; I/M components; Large-signal model; Multi-signal analysis; Satellite communication; Space TWT;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International
Conference_Location :
Paris
Print_ISBN :
978-1-4673-5976-4
DOI :
10.1109/IVEC.2013.6570921
