Contact-less near-field measurement of RF phased array antenna mismatches

Maryam Shafiee, Sule Ozev

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

6 Scopus citations


Future RF transceivers are expected to integrate the entire system, from baseband to antenna. Many emerging applications use beam forming, which necessitates RF phased arrays and multiple antennas integrated on the same die. Integration of antennas onto the same die as the phased array and other electronics presents a test challenge since the output is combined in the air and no longer can be separated by physically connecting to the test equipment. This paper presents a novel contact-less test method for measuring the gain and phase mismatch of RF phased array antennas. The proposed method is based on using fully characterized receiver antennas to capture the combined EM output of the transmitter antennas. Near-field analysis is applied with a decoupling approach to determine both gain and phase mismatches so they can be calibrated in the baseband. Near-field measurements are preferable in the production test environment since they do not require large physical distances to be implemented on the load board. A phased array consisting of two elements is modeled and evaluated in near field to verify our test method.

Original languageEnglish (US)
Title of host publicationProceedings - 2017 22nd IEEE European Test Symposium, ETS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509054572
StatePublished - Jul 3 2017
Event22nd IEEE European Test Symposium, ETS 2017 - Limassol, Cyprus
Duration: May 22 2017May 26 2017


Other22nd IEEE European Test Symposium, ETS 2017


  • Contactless test
  • Near field
  • On-chip phased array antenna

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering
  • Software


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