Title :
Design of a high power S-band metamaterial backward-wave oscillator
Author :
Hummelt, Jason ; Lewis, Simon John Geoffrey ; Shapiro, Marc ; Temkin, Richard
Author_Institution :
Plasma Sci. & Fusion Center, Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
This paper presents the design of a novel backward-wave oscillator (BWO) that uses a negative index mode in a waveguide filled with a metamaterial (MTM). The MTMBWO is designed to operate at 2.6 GHz with electromagnetic simulations using the HFSS code. CST PIC simulations were performed of the device and predict a saturated output power of 5.75 MW using a 500 keV, 80 A electron beam (14% efficiency). In addition, a brass cold test structure of the proposed MTMBWO was built and tested with a vector network analyzer and showed very good agreement with simulation.
Keywords :
UHF oscillators; backward wave oscillators; circuit testing; electromagnetic metamaterials; network analysers; waveguides; CST PIC simulation; HFSS code; MTMBWO; brass cold test structure; current 80 A; efficiency 14 percent; electromagnetic simulation; electron beam; electron volt energy 500 keV; frequency 2.6 GHz; high power S-band metamaterial backward-wave oscillator; metamaterial waveguide; negative index mode; power 5.75 MW; vector network analyzer; Electromagnetic waveguides; Electromagnetics; Electron beams; Indexes; Metamaterials; Oscillators; Power generation; Backward-wave oscillator; Metamaterial;
Conference_Titel :
Vacuum Electronics Conference, IEEE International
Conference_Location :
Monterey, CA
DOI :
10.1109/IVEC.2014.6857574
