Thin magneto-dielectric coatings for hybrid-mode horn antennas

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

1 Scopus citations

Abstract

Hybrid-mode horns such as corrugated horns, strip loaded horns and dielectric loaded horns have been used for satellite antennas due to their low cross-polarized radiation [1]-[3]. Furthermore, horns that support the balanced hybrid-mode can behave as either soft or hard horns, providing low sidelobes or high aperture efficiency [4]-[5]. Although corrugated horns have found wide use in satellite antennas, dielectric loaded horns are less desirable because of their higher mass, dielectric losses, and limited bandwidth. Recently, a metamaterial-based hybrid-mode horn design was proposed, where a metamaterial liner with dielectric constant less than unity was placed on the wall of the horn [6]. It promises improved bandwidth as well as low manufacturing costs. In fact, metamaterials can exhibit a much broader range of electromagnetic properties, such as a negative or near zero index of refraction [7]. In this work, a magneto-dielectric metamaterial liner with low refractive index was used to realize hybrid-mode horns. This paper provides metamaterial design principles and the expressions needed for hybrid-mode operation, as well as examples of conical horn antennas with metamaterial coatings that exhibit low cross-polarized radiation.

Original languageEnglish (US)
Title of host publication2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010
DOIs
StatePublished - Nov 22 2010
Event2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010 - Toronto, ON, Canada
Duration: Jul 11 2010Jul 17 2010

Publication series

Name2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010

Other

Other2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010
CountryCanada
CityToronto, ON
Period7/11/107/17/10

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture

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    Wu, Q., Werner, D. H., Werner, P. L., & Lier, E. (2010). Thin magneto-dielectric coatings for hybrid-mode horn antennas. In 2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010 [5561665] (2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010). https://doi.org/10.1109/APS.2010.5561665