Corner reflector antenna

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Corner reflector antenna

A corner reflector antenna , from English: Corner antenna , is a directional antenna . It consists of a corner reflector, a radiator element, mostly designed as a half-wave or butterfly dipole , and often a correction element or director in front of it. With vertical polarization, a blocking cup dipole (coaxial dipole) can be used as a radiator, which offers a very good match to a 50 ohm coaxial cable .

The antenna design, which belongs to the reflector antennas, was invented in 1940 by John D. Kraus .


  • Very broadband in the butterfly version (frequency ratios of 1 to 2 are possible)
  • high vertical bundling
  • high front-to-back ratio
  • simple construction.

Corner reflector antennas are mainly used in the UHF range.

Applications are:


  • E. Spindler: antenna technology. VEB Verlag Technik, Berlin (1968)

Web links

Commons : Corner reflector antennas  - collection of images, videos and audio files

Individual evidence

  1. ^ Thomas Schneider: Mobile data communication. (PDF file) Springer-Verlag, January 9, 2013. Section 6.7.3 Antenna corner reflector (p. 117)
  2. U.S. Patent 2,270,314