Densely Interleaved Arrays for Dual-Tone Transmitters

Anton Atanasov*, Mark S. Oude Alink, Frank E. van Vliet

*Corresponding author for this work

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

2 Citations (Scopus)
216 Downloads (Pure)


Power amplifier nonlinearity introduces intermodulation distortion when transmitting dual-tone signals from an antenna array. To reduce distortion levels and increase output power for dual-tone systems we propose to densely interleave two antenna arrays without increasing the antenna aperture. Each array is excited with a different tone, resulting in a single-tone input for the power amplifiers, thereby reducing intermodulation distortion. In order to compare the performance of the densely interleaved array with a regular, planar array, when excited by two-tone signals, a procedure for evaluating the S-parameters matrix of an interleaved dipole array is presented. Simulations with a realistic RF power amplifier model show 13 to 31 dB intermodulation reduction for the same output power and total antenna aperture.
Original languageEnglish
Title of host publication2019 IEEE International Symposium on Phased Array Systems and Technology
Place of PublicationPiscataway, NJ
ISBN (Print)978-1-7281-3049-1
Publication statusPublished - 16 Oct 2019
Event2019 IEEE International Symposium on Phased Array Systems and Technology - Waltham, United States
Duration: 15 Oct 201918 Oct 2019


Conference2019 IEEE International Symposium on Phased Array Systems and Technology
Country/TerritoryUnited States
Internet address


  • Phased arrays
  • Mutual coupling
  • Intermodulation
  • Nonlinearity
  • Interleaved arrays


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