Title :
Dielectric Rod Waveguide Travelling Wave Amplifier Based on AlGaAs/GaAs Heterostructure
Author :
Pousi, Patrik ; Lioubtchenko, Dmitri ; Dudorov, Sergey ; Räisänen, Antti V.
Author_Institution :
Dept. of Radio Sci. & Eng., Helsinki Univ. of Technol., Helsinki
Abstract :
In this paper travelling wave amplification is experimentally demonstrated in the dielectric rod waveguide at W band. An AlGaAs/GaAs heterostructure chip is inserted in the waveguide, and the applied electric field causes an electron drift. Due to the energy transfer from the drifting electrons the electromagnetic wave travelling in the periodic structure is amplified. A maximum of about 8 dB/cm electronic gain was observed in the measurements with the electric field of 150 V/cm.
Keywords :
III-V semiconductors; aluminium compounds; dielectric waveguides; gallium arsenide; microwave materials; periodic structures; travelling wave amplifiers; AlGaAs-GaAs; W band; dielectric rod waveguide travelling wave amplifier; electromagnetic wave travelling; electron drift; periodic structure; travelling wave amplification; Dielectrics; Electric variables measurement; Electromagnetic scattering; Electromagnetic waveguides; Electrons; Energy exchange; Gain measurement; Gallium arsenide; Periodic structures; Semiconductor device measurement;
Conference_Titel :
Microwave Conference, 2008. EuMC 2008. 38th European
Conference_Location :
Amsterdam
Print_ISBN :
978-2-87487-006-4
DOI :
10.1109/EUMC.2008.4751645
