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

Volume

2

fYear

2002

fDate

2002

Firstpage

524

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwaves, Radar and Wireless Communications, 2002. MIKON-2002. 14th International Conference on

Print_ISBN

83-906662-5-1

Type

conf

DOI

10.1109/MIKON.2002.1017901

Filename

1017901