Linearization technique of diplexer-free transmitter for carrier aggregation signals

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We introduce a linearization technique of a transmitter for intra-band non-contiguous carrier aggregation signals at the 5GHz frequency band. The proposed technique is based on low power and narrow-band signal injection to compensate for out-band third-order intermodulation distortion (IMD3). Efficiency degradation due to mutual loading is addressed by designing the power amplifiers (PAs) to introduce high output impedance. We achieve a spur level of -52dBc and 1dB loss in saturated power (Psat) due to mutual PA loading. The high output impedance characteristic, together with IMD3 compensation, enable diplexer-free transmission of two carriers along the aggregated transmission band.

Original languageEnglish
Title of host publication2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-4
Number of pages4
ISBN (Electronic)9781538631690
DOIs
StatePublished - 28 Jun 2017
Event2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2017 - Tel-Aviv, Israel
Duration: 13 Nov 201715 Nov 2017

Publication series

Name2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2017
Volume2017-November

Conference

Conference2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2017
Country/TerritoryIsrael
CityTel-Aviv
Period13/11/1715/11/17

Keywords

  • IMD3
  • carrier aggregation
  • compensation
  • diplexer-free
  • high output impedance PA
  • intermodulation
  • power amplifier

All Science Journal Classification (ASJC) codes

  • Radiation
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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