Direction of arrival estimation using Luneburg lens

Min Liang, Xiaoju Yu, Rafael Sabory-Garcia, Wei Ren Ng, M. E. Gehm, Hao Xin

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

10 Scopus citations


In this paper, a 3-D Luneburg Lens is employed for direction finding application. Using the special property of a Luneburg lens that every point on the surface of the Lens is the focal point of a plane wave incident from the opposite side, a number of detectors are mounted around the surface of the lens to estimate the direction of arrival (DOA) of a microwave signal. To demonstrate the proposed direction finding system, a Luneburg lens with five detectors mounted on its surface to receive the signal from 20° to 20° is measured at 5.6 GHz. The initial direction finding results using a correlation algorithm show that the estimated error is smaller than 2° within 15° to 15° incident angles.

Original languageEnglish (US)
Title of host publicationIMS 2012 - 2012 IEEE MTT-S International Microwave Symposium
StatePublished - 2012
Event2012 IEEE MTT-S International Microwave Symposium, IMS 2012 - Montreal, QC, Canada
Duration: Jun 17 2012Jun 22 2012

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X


Other2012 IEEE MTT-S International Microwave Symposium, IMS 2012
CityMontreal, QC


  • Direction of Arrival (DOA) Estimation
  • Gradient Index
  • Luneburg Lens

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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