Title :
Superheterodyne amplification of sub millimeter electromagnetic waves in nGaAs film
Author :
Koshevaya, S. ; Grimalsky, V. ; Sánchez-Mondragón, J. ; Escobedo-Alatorre, J. ; Tecpoyotl-Torres, M.
Author_Institution :
Autonomous State Univ. of Morelos, Cuernavaca, Mexico
Abstract :
Superheterodyne amplification of sub-millimeter electromagnetic waves in GaAs due to negative differential mobility is analyzed. The nonlinearity arises from the current and the magnetic field of the electromagnetic waves. The case of interaction of two traveling counter-propagating electromagnetic waves and the following space charge wave in an n-GaAs film placed onto an i-GaAs substrate is considered The case of 2D electron gas is also analyzed. The simulation of this nonlinear interaction shows a certain increment of the amplification.
Keywords :
amplification; carrier mobility; computational electromagnetics; gallium arsenide; semiconductor thin films; submillimetre waves; two-dimensional electron gas; 2D electron gas; 2DEG; EM wave current/magnetic field nonlinearity; GaAs; GasAs negative differential mobility; i-GaAs substrate; n-GaAs films; nonlinear interaction simulations; space charge wave; sub-millimeter electromagnetic waves; sub-mm EM wave superheterodyne amplification; traveling counter-propagating EM wave interactions; Electromagnetic analysis; Electromagnetic scattering; Electrons; Frequency; Gallium arsenide; Magnetic analysis; Magnetic films; Maxwell equations; Pulse amplifiers; Space charge;
Conference_Titel :
Microwaves, Radar and Wireless Communications, 2002. MIKON-2002. 14th International Conference on
Print_ISBN :
83-906662-5-1
DOI :
10.1109/MIKON.2002.1017901
