Backscatter Cross Section of a Paraboloidal Antenna

Abstract

L MEASUREMENTS OF HIGH-FREQUENCY SCATTERING BY A PARABOLOIDAL REFLECTOR. Experimental measurements were conducted on 18-inch-diameter, waveguide-fed and 24-inch-diameter, cross dipolefed, paraboloidal antennas over a range of frequencies and aspect angles with various combinations of transmit/ receive polarizations and feed dipole orientations. (1) Simple mathematical formulas were developed for nose-on radar cross section (RCS) as a function of load impedance and transmit/receive polarization. (2) Possible out-of-band RCS reduction methods were investigated and models made for testing. (3) RCS phase information on the antennas was also obtained as approximated by an empirical expression over the frequencies of interest.

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Document Details

Document Type
Technical Report
Publication Date
Aug 30, 1973
Accession Number
AD0770012

Entities

People

  • Peter S. S. Kao

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Antenna Radiation Patterns
  • Antennas
  • Artificial Satellites
  • Aspect Angle
  • Backscattering
  • Circular Polarization
  • Diffraction
  • Electric Fields
  • Frequency
  • Frequency Bands
  • Mathematical Models
  • Measurement
  • Orientation (Direction)
  • Polarization
  • Radiation Patterns
  • Reflectors
  • Scattering

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Reinforced Composite Materials