A Portable Servo Recorder for Antenna Patterns

Abstract

Present microwave-antenna measurements require a portable, single-package pattern recorder. Such a recorder, with an 80-db range of input voltage plotted against angular position of the antenna in rectangular patterns. The unit is of the direct-inking type having an effective plotting size of 7 x 10 inches. I is based upon the follow-up servo principle, which makes use of a four-cycle, logarithmic attenuator and a motor-driven, mechanical differential.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 06, 1949
Accession Number
AD1210730

Entities

People

  • O. A. Tyson
  • W. J. Edwards

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Antennas
  • Attenuators
  • Measurement
  • Microwave Antennas
  • Microwaves
  • Plotting
  • Recording Systems

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Radar Systems Engineering.