Accession Number:

AD0603172

Title:

MEASUREMENTS OF FAR-FIELD RADIATION PATTERNS IN THE NEAR-FIELD OF A RADIATING LENS FED WITH A GOUBAU BEAM-WAVEGUIDE.

Descriptive Note:

Technical rept. no. 81,

Corporate Author:

ILLINOIS UNIV URBANA ENGINEERING EXPERIMENT STATION

Personal Author(s):

Report Date:

1964-07-01

Pagination or Media Count:

29.0

Abstract:

The purpose of this report is to present the results of an experiment designed to measure the far-field radiation pattern of a radiating lens fed by a Goubau beam-waveguide in the near-field. The aperture diameter of the radiating lens is 50 wavelengths. The experiment was performed at a frequency of 71.5 Gc. The transmitting and test antennas was separated by a minimum distance of 30 feet to measure far-field patterns. For the experiment lenses were designed which give, approximately, a plane phase front at distances of 2.5 feet, 5 feet, and 10 feet from the transmitting antenna. This correcting lens is placed flush with the radiating lens of the test antenna. The lens design, and the experimental results are given.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE