Title :
Analysis and optimization of outputs of high power microwave tubes
Author :
Wegrzyniak, P. ; Gwarek, Wojciech ; Baczewski, Dariusz
Author_Institution :
Warsaw Univ. of Technol., Warsaw
Abstract :
The subject of this work is optimization of outputs of L-band high power microwave tubes. These outputs are constructed as coaxial-to-waveguide transitions with a vacuum barrier in a form of glass or ceramic cup. The goal of optimization is to obtain sufficiently low reflection loss in the predefined frequency band and to avoid so called hot spots caused by excessive dissipation of microwave power in parts of the cup. Electromagnetic simulator has been applied to model the behavior of the optimized transition and to propose its optimum shape. The proposed solutions were verified by Z.E.Lamina in prototypes of high power (pulsed 600 kW) amplitrons and are to be used in manufacturing practice.
Keywords :
UHF power amplifiers; coaxial waveguides; electromagnetic wave reflection; microwave power amplifiers; microwave tubes; L-band high power microwave tube; coaxial-to-waveguide transition; electromagnetic simulator; frequency 1340 MHz; high power amplitron; microwave power dissipation; power 600 kW; vacuum barrier; Ceramics; Coaxial components; Electromagnetic modeling; Electromagnetic reflection; Frequency; Glass; L-band; Manufacturing; Prototypes; Shape;
Conference_Titel :
Microwaves, Radar & Wireless Communications, 2006. MIKON 2006. International Conference on
Conference_Location :
Krakow
Print_ISBN :
978-83-906662-7-3
DOI :
10.1109/MIKON.2006.4345360
