Silica-Based Optical Time-Shift Network.

Abstract

The objective of this program was to design, fabricate, package, and demonstrate a silica waveguide time delay network for evaluation in a phased array antenna testbed. Specifically, a 4-bit silica waveguide time shifter module, with programmable time delay steps of 0.248 nsec has been successfully developed. The silica waveguide module was inserted into a 96 element L band array, controlling the central column. Extensive demonstration and evaluation verified that the antenna has better than 50% instantaneous bandwidth scanning angles +/- 60 degrees. In addition, an improved, smaller package was developed and evaluated, resulting in a 'folded-chip' package with dimensions of approximately 13 cm x 7 cm.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1996
Accession Number
ADA310060

Entities

People

  • J. J. Lee
  • R. Loo
  • S. Livingston
  • Weiwen Ng

Organizations

  • HRL Laboratories

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Crystal Lattice Vibrations
  • Delay Lines
  • Detectors
  • Fabrication
  • Frequency
  • Geometry
  • Insertion Loss
  • L Band
  • Measurement
  • Optical Waveguides
  • Optics
  • Phased Arrays
  • Radiation
  • Radio Frequency Amplifiers
  • Refractive Index
  • Two Dimensional
  • Waveguide Bends

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Microwave Engineering.
  • Phased Array Antenna Design.