太赫兹扩展互作用振荡器的矩形耦合腔特性研究.PDF

3 Vol. 39 No. 3 20113 ACTA ELECTRONICA SINICA Ma . 2011 张开春 ( THz , 610054) : ( EIO) , , . , 012THz 0225THz . , . , . : ; ; ; ; : TN12 : A : ( 2011) Study of Characteristic of Rectangular CoupledCavity SlowWave Structure for Extended Interaction Oscillator inTerahertz Band ZHANG Kaichun ( THz Research Center, School of Physical Electronics , University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China) A stract: A ectangula coupledcavity was p oposed as the slowwave st uctu e ( SWS) fo the extended inte action oscilla to ( EIO) in te ahe tz ( THz) wave. D ue to the complexity of the SWS, the equivalent ci cuit method ( ECM) was adopted to calcu late the dispe sion of the SWS. The ci cuit pa amete s of the cavity and the coupling slot have been studied in detail. The dispe sion of the SWS, which includes diffe ent dimension w ith a ound o a ectangula beam tunnel at the f equency 012THz and 0225THz, was theo etically calculated. Specified elect omagnetic softwa e was utilized to simulate the dispe sion, the coupling impedance and the cha acte istic impedance of the SWS. By compa ison, the theo etical esults of the dispe sion ag ee well with the simulation esults. Key words: Te ahe tz ( THz) ; ectangula coupledcavity ; slowwave st uctu e ( SWS) ; equivalent ci cuit method ( ECM) ; dispe sion , 1 EIO . (Te ahe tz, THz) . [ 1] , . ( Extended Inte action Oscill