Title :
Design of a volume mode W-band TWT amplifier
Author :
Hummelt, J.S. ; Lewis, S.M. ; Shapiro, Michael A. ; Temkin, Richard J.
Author_Institution :
Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
In this paper we investigate the use of a photonic band-gap (PBG) structure in the design of a 94 GHz traveling wave amplifier. The proposed device has been designed with a large beam tunnel in order to accommodate a high current electron beam. CST Microwave Studio is used to solve the dispersion of the waveguide and simulate transmission of microwaves through a finite length section of the PBG waveguide. The CST PIC solver is used to estimate the output power of the device. The numerical linear gain of the TWT is 38 dB and the output power is 360 W.
Keywords :
photonic band gap; travelling wave amplifiers; wideband amplifiers; CST Microwave Studio; CST PIC solver; PBG structure; PBG waveguide; W-band TWT amplifier; finite length section; frequency 94 GHz; gain 38 dB; high current electron beam; large beam tunnel; microwave transmission; numerical linear gain; photonic band-gap structure; power 360 W; traveling wave amplifier; waveguide dispersion; Electron beams; Gain; Microwave amplifiers; Microwave circuits; Microwave photonics; Power amplifiers; Power generation;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956196
