Investigation of backfire monofilar helical antenna

Thomas Gunst Smith, Niels Vesterdal Larsen, Ulrich Vesterager Gothelf, Oleksiy S. Kim, Olav Breinbjerg

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


This paper presents a numerical investigation of the electromagnetic properties of the backfire monofilar helical antenna. The current distribution along the helical conductor, the input impedance, and the front-to-back ratio are calculated and analyzed for the backfire operation of the antenna. A parametric study of the helical geometry and the resulting antenna characteristics will be described and discussed. The currents and fields are calculated using the simulation software AWAS based on the Method of Moments with a wire representation of the ground plane.
Original languageEnglish
Title of host publicationProceedings of the 5. European Conference on Antennas and Propagation
Publication date2011
ISBN (Print)978-1-4577-0250-1
Publication statusPublished - 2011
Event5th European Conference on Antennas and Propagation - Rome, Italy
Duration: 11 Apr 201115 Apr 2011
Conference number: 5


Conference5th European Conference on Antennas and Propagation
Internet address


  • Antenna radiation patterns
  • Impedance
  • Helical antennas
  • Directive antennas
  • Conductors
  • Current distribution

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