Investigation of Antennas for a High-Sensitivity Polarization Measurement Sensor

Abstract

The polarization properties of the electromagnetic fields radiated by a scanning array antenna enclosed within an aerodynamic dielectric radome are analyzed and measured. It is known that the radome causes depolarization effects, and it is of interest to measure the depolarization to a high level of sensitivity. A polarization measurement procedure is developed using a pure linearly polarized reference antenna. A design for this antenna is proposed that is expected to have less than -50 dB cross-polarization in the main beam. The same antenna may be employed as a precision polarization sensor of an arbitrary incoming EM wave.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2010
Accession Number
ADA530246

Entities

People

  • Chi-chih Chen
  • Robert J. Burkholder

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Antenna Arrays
  • Antennas
  • Cross Polarization
  • Electromagnetic Fields
  • Far Field
  • Frequency
  • Frequency Domain
  • Measurement
  • Radiation
  • Scattering
  • Sensitivity
  • Simulations
  • Slot Antennas
  • Standards
  • Time Domain
  • Uncertainty

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Optical Fiber Sensing and Electromagnetic Propagation.