Accession Number:

AD0272777

Title:

FLIGHT TEST EVALUATION OF FLUSH MOUNTED LUNEBERG LENS ANTENNA FOR PWI/CAS SYSTEM

Descriptive Note:

Corporate Author:

SPERRY GYROSCOPE CO GREAT NECK N Y

Personal Author(s):

Report Date:

1961-12-01

Pagination or Media Count:

1.0

Abstract:

The operation of the Pilot Warning InstrumentCollision Avoidance System PWICAS is based on a unique dual antenna. This unit consists of a directional scanning antenna Luneberg lens and an omnidirectional antenna combined in a flush mounted assembly. Two modified APN-121 dual antennas were flight tested to determine the adequacy and suitability of this type of antenna for the PWICAS system. Two FAA aircraft of the JC-131 type were fitted with the modified antennas. A compatible X-band interrogator APW-18 and a transponder APQ-16 were used to provide signal sources and signal detectors. The communication coverage volume provided by the two antennas was determined by flying the aircraft towards each other in a series of non-collision and collision courses. The results of the flight test program demonstrate that the dual antenna is both adequate and suitable for the PWICAS. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE