Accession Number:

ADA017298

Title:

Flight Test Evaluation of a 240 to 400 MHz Cavity-Backed Cross Open-Sleeve Dipole Antenna.

Descriptive Note:

Test rept.,

Corporate Author:

AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s):

• Nawman,Lowell R.
• King,Howard E.

Report Date:

1975-10-10

Pagination or Media Count:

31.0

Abstract:

The gain and radiation patterns of a cavity-backed open-sleeve cross dipole antenna mounted on a C135-type aircraft were measured bia a satellite-to-aircraft link at 249.1 MHz. The antenna was designed for operation over the 240 to 400 MHz frequency band and has maximum dimensions of 21.5 in. square by 6 in. deep. For the purposes of the aircraft flight tests, the antenna was externally mounted to the fuselage and covered with a radome. The gain and radiation patterns of the antenna measured in the antenna range with the cavity mounted on a 9.5-ft by 9.5-ft cylindrically curved ground plane are also shown for comparison.

Descriptors:

• *Dipole antennas
• *Aircraft antennas
• Antenna radiation patterns
• Gain
• Cavities
• Ultrahigh frequency
• Very high frequency
• Air to space
• Jet transport planes

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE