Accession Number:

ADA010479

Title:

Scale Model Pattern Measurements of Aircraft L-Band Beacon Antennas,

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s):

• Keeping,K. J.
• Sureau,J. C.

Report Date:

1975-04-04

Pagination or Media Count:

149.0

Abstract:

The report describes the techniques and apparatus used to measure the directional patterns of aircraft ATC transponder antennas L-Band using digital techniques and magnetic tapes for data storage. Algorithms involved in data normalization, cross-polarization correction and coordinate conversions are discussed. Some typical applications of the data are illustrated with actual computer outputs obtained from the model measurements.

Descriptors:

• *ANTENNA RADIATION PATTERNS
• *AIRCRAFT ANTENNAS
• SCALE MODELS
• AIR TRAFFIC CONTROL SYSTEMS
• MODEL TESTS
• TRANSPONDERS
• L BAND
• BEACONS

Subject Categories:

• Electrical and Electronic Equipment
• Air Navigation and Guidance

Distribution Statement:

APPROVED FOR PUBLIC RELEASE