Simplified Tightly-Coupled Cross-Dipole Arrangement for Base Station Applications

Can Ding, Haihan Sun, Richard W. Ziolkowski, Y. Jay Guo

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

The electromagnetic fundamentals that govern the performance characteristics of dual-polarized tightly coupled cross-dipoles that are widely used in cellular base station applications are investigated. The mutual coupling effects and their impact on standard performance indices are stressed. A model is developed that considers this type of cross-dipole as an array. Links between the physical dimensions of the components of these model and key radiation characteristics, including directivity, half-power-beam width, and cross polarization discrimination levels, are established. The model guides the introduction and optimization of a simplified cross-dipole structure that exhibits excellent performance. A prototype was fabricated, assembled, and tested. The measured results are in good agreement with their simulated values, validating the model, and its governing principles.

Original languageEnglish (US)
Article number8121966
Pages (from-to)27491-27503
Number of pages13
JournalIEEE Access
Volume5
DOIs
StatePublished - Nov 27 2017

Keywords

  • Arrays
  • base station antenna
  • cross-dipole antennas
  • dual-polarization
  • tightly-coupled elements

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

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