A broadband high linearity inductorless CMOS variable gain amplifier for square kilometer array

I. L. Abdalla, A. Allam, H. Jia, R. Pokharel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a high-bandwidth 2 GHz CMOS variable gain amplifier (VGA) for using in the band of square kilometer array (SKA) range that achieves an 18 dB dynamic range (DR) while powered from a single 1.8 V supply. This VGA capability is obtained by employing a passive digital T-bridge attenuator followed by a fixed amplifier, the use of attenuator in the front end of the VGA results in a high linearity of 28 dBm to 34 dBm over the full DR. In contrast to traditional VGAs [5], [6], the VGA exhibits 30-50 dB more in DR while its bandwidth and IP3 extends below the presented.

Original languageEnglish
Title of host publication2015 International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design, SMACD 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467391849
DOIs
Publication statusPublished - Oct 19 2015
EventInternational Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design, SMACD 2015 - Istanbul, Turkey
Duration: Sep 7 2015Sep 9 2015

Publication series

Name2015 International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design, SMACD 2015

Other

OtherInternational Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design, SMACD 2015
CountryTurkey
CityIstanbul
Period9/7/159/9/15

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Modelling and Simulation

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