Title :
A novel broadband linearization technique for amplifier design
Author_Institution :
Analog Devices, Inc., Woburn, MA, USA
Abstract :
A novel broadband linearization technique was presented in this paper. It significantly reduced the third-order-intermodulation (IM3) of an amplifier. The proposed approach was implemented in a GaAs HBT Darlington pair amplifier MMIC design. The measured results of the integrated MMIC showed that more than 17dB IM3 reduction or more than 8.5dB improvement of output third-order-intercept point (OIP3) was achieved at 2GHz. From 1GHz to 4GHz the average OIP3 improvement was more than 5dB.
Keywords :
III-V semiconductors; MMIC amplifiers; gallium arsenide; intermodulation; linearisation techniques; millimetre wave bipolar transistors; wideband amplifiers; GaAs; GaAs HBT Darlington pair amplifier MMIC design; IM3; OIP3; broadband linearization technique; frequency 1 GHz to 4 GHz; frequency 2 GHz; output third-order-intercept point; third-order-intermodulation; Broadband amplifiers; Equations; Gain; Linearity; MMICs; Noise measurement; Amplifier; Linearization; Output third-order-intercept point (OIP3); third-order-intermodulation (IM3);
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
