A WIDEBAND RECEIVER FOR DIRECTION-SENSITIVE DOPPLER RADARS,

Abstract

The direction-sensitive doppler radar, a system concept originated in HDL, requires the introduction of a 90-deg phase displacement between two doppler signals. This had restricted the receiver bandwidth to about 3 octaves because of the interchannel amplitude discrepancy caused by available phase shifters. A new quadrature phase shifter with a constant output over a large frequency range has been developed. The performance of an experimental receiver incorporating this new phase shifter is described. It has a 7-octave bandwidth. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1968
Accession Number
AD0669740

Entities

People

  • Raymond H. Femenias

Organizations

  • Harry Diamond Laboratories

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Bandwidth
  • Displacement
  • Doppler Effect
  • Doppler Radar
  • Frequency
  • Frequency Shift
  • Radar

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Radar Systems Engineering.