Title :
A third harmonic magnicon amplifier at 34 GHz
Author :
Nezhevenko, O.A. ; Yakovlev, V.P. ; Ganguly, A.K. ; Hirschfield, J.L.
Author_Institution :
Omega-P Inc., New Haven, CT, USA
Abstract :
Summary form only given, as follows. Magnicon is a high power, high efficiency microwave device. The magnicon has been successfully operated at the fundamental (1 GHz, 2.5 MW) and the second harmonic (7 GHz, 42 MW). The efficiencies are 73% and 45%, respectively. In the present paper we examine the feasibility of a third harmonic magnicon amplifier at 34 GHz with 1 /spl mu/s pulse width as a possible high power, high efficiency RF source. Preliminary calculations show that such a magnicon can operate at an efficiency of about 40% with power exceeding 40 MW. The surface RF field in the cavities is in the range of 700-900 kV/cm which is below the breakdown level at 34 GHz for 1 /spl mu/s pulse length. The newly proposed active RF pulse compressors would make it possible to generate hundreds of MW power with 40 ns pulse suitable for multi=TeV e/sup -/e/sup +/ linear colliders. The maximal cathode loading does not exceed 15 A/cm/sup 2/. Details of numerical simulations and optimum design parameters are presented.
Keywords :
cavity resonators; harmonic generation; millimetre wave generation; millimetre wave power amplifiers; millimetre wave tubes; pulse compression; simulation; 1 GHz; 1 mus; 2.5 MW; 34 GHz; 40 MW; 40 ns; 40 percent; 42 MW; 45 percent; 7 GHz; 73 percent; RF pulse compressors; breakdown level; cavities; e/sup -/e/sup +/ linear colliders; efficiencies; fundamental mode; high power high efficiency RF source; maximal cathode loading; microwave device; numerical simulations; optimum design parameters; power; pulse width; second harmonic mode; surface RF field; third harmonic magnicon amplifier; Corona; Microwave devices; Plasma accelerators; Plasma density; Plasma devices; Plasma diagnostics; Power system harmonics; Pulse amplifiers; Pulse compression methods; Radio frequency;
Conference_Titel :
Plasma Science, 1997. IEEE Conference Record - Abstracts., 1997 IEEE International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-3990-8
DOI :
10.1109/PLASMA.1997.604928
