Title :
Analysis of a novel 200GHz Cherenkov radiation based backward wave oscillator
Author :
Nashed, A.I. ; Chaudhuri, S.K. ; Safavi-Naeini, S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Waterloo, Waterloo, ON, Canada
Abstract :
A novel Backward Wave Oscillator (BWO) suitable for work at millimeter Wave/THz regime, based on the Axial loaded Double Defected-Photonic Crystal (ADD-PC) Slow Wave Structure (SWS), is proposed. With the advantage of the excellent mode selectivity of the PC and the power handling capability of the metallic SWS, the ADD-PC is an ideal structure for Cherenkov radiation-based source/amplifier. The performance of the proposed BWO was investigated using a Finite Difference Time Domain (FDTD)/Particle In Cell (PIC) simulation. The numerical simulation result shows a strong agreement with the theoretical expectations. A design example, generating a 200GHz electromagnetic wave at a 50mW level is presented.
Keywords :
backward wave oscillators; electromagnetic waves; finite difference time-domain analysis; millimetre wave amplifiers; millimetre wave oscillators; photonic crystals; ADD-PC SWS; BWO; Cherenkov radiation based backward wave oscillator; Cherenkov radiation-based amplifier; Cherenkov radiation-based source; axial loaded double defected-photonic crystal slow wave structure; electromagnetic wave; finite difference time domain simulation; frequency 200 GHz; particle-in-cell simulation; power handling capability; Electromagnetic waveguides; Electron beams; Finite difference methods; Impedance; Magnetic fields; Oscillators; Time-domain analysis; Backward Wave Oscillator (BWO); Finite Difference Time Domain (FDTD); Particle In Cell (PIC); Photonic Crystal (PC);
Conference_Titel :
Microwave and RF Conference (IMaRC), 2014 IEEE International
Conference_Location :
Bangalore
DOI :
10.1109/IMaRC.2014.7039017
