Characterization of a Diffraction Grating as a Simulant of a Selective Frequency Antenna for Radiometric Applications
Abstract
This report details the study of a blazed diffraction grating as a simulant of a selective frequency antenna for radiometric applications. Specifically, the ability to direct and sweep a beam of millimeter wave (MMW) energy is explored as a potential means of munitions guidance. A grating was designed and built to direct incident energy into the negative first-order peak of the associated diffraction spectrum. A change of 1 GHz in the incident energy frequency is shown to produce a beam displacement of 0.30, a polarization dependence is shown to exist for energy in orders other than zero, and a limited scaling of the optical theory of diffraction to MMW energies is demonstrated to be feasible. Millimeter wave, Diffraction grating, Antenna, Radiometer.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1994
- Accession Number
- ADA275793
Entities
People
- Thomas J. Pizzillo
Organizations
- United States Army Research Laboratory