Circuit aspects of the NRL/industrial 94 GHz gyroklystron amplifier

Author

Pershing, D. ; Nguyen, K. ; Petillo, J. ; Calame, J. ; Danly, B. ; Levush, B.

Author_Institution

Mission Res. Corp., Newington, VA, USA

Volume

3

fYear

1997

fDate

12-16 May 1997

Firstpage

3144

Abstract

A wide bandwidth, high average power W-band gyroklystron amplifier is currently under cooperative development by NRL, Litton Electron Devices, and Communication and Power Industries. The amplifier circuit is comprised of 4 stagger-tuned cavities operating in the fundamental TE ₀₁₁ circular cavity mode. The input coupler is the first cavity of the circuit and must exhibit reasonable coupling strength between the TE₁₀ mode in the rectangular waveguide and the desired TE₀₁₁ circular cavity mode over a better than 600 MHz bandwidth centered at 93.4 GHz, with high TE₀₁ mode purity. A single WR-8 rectangular waveguide drives a combined coaxial/cylindrical cavity system. The coaxial cavity resonating in the TE₄₁₁ mode is tightly coupled to the cylindrical cavity, excited to resonate in the TE₀₁₁ mode. The RF magnetic field couples the cavities through 4 azimuthally spaced apertures

Keywords

accelerator RF systems; accelerator cavities; gyrotrons; klystrons; radiofrequency amplifiers; rectangular waveguides; 93.4 GHz; NRL/industrial gyroklystron amplifier; RF magnetic field; TE₁₀ mode; WR-8 rectangular waveguide; accelerator RF system; amplifier circuit; azimuthally spaced apertures; circuit aspects; coaxial cavity; fundamental TE₀₁₁ circular cavity mode; high average power W-band gyroklystron amplifier; input coupler; stagger-tuned cavities; wide bandwidth; Bandwidth; Coaxial components; Coupling circuits; Electron devices; High power amplifiers; Klystrons; Power industry; Radio frequency; Rectangular waveguides; Tellurium;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.753136

Filename

753136