Robust and fast near-field antenna measurement technique

Po Jui Chiu, Wei Chung Cheng, Dong Chen Tsai, Zuo-Min Tsai *

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Traditional near-field antenna measurements use the sampling theorem to reconstruct the antenna pattern perfectly. However, a large number of measurement points are required for this approach. To address this problem, in this study, we propose a technique to accelerate the near-field antenna measurement, which is achieved by sparse E-field sampling in the region where the E-field changes smoothly and dense sampling in the region where the field changes rapidly. Further, our approach ensures robustness of measurement; the E-field information need not be known before carrying out measurements. Our experimental results demonstrate that our technique can reduce the number of measuring points by at least 64.9% when measuring two different patterns (15-GHz horn antenna with θ = 0° and 10°).

Original languageEnglish
Pages (from-to)777-784
Number of pages8
JournalInternational Journal of Microwave and Wireless Technologies
Volume8
Issue number4-5
DOIs
StatePublished - 1 Jun 2016

Keywords

  • Antenna measurement
  • Interpolation
  • Near-field to far-field
  • Sampling theorem

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