Accession Number:

ADA151897

Title:

Null Generation Using Discs on a Reflector.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

• Rudisill,M. D.

Report Date:

1984-12-01

Pagination or Media Count:

96.0

Abstract:

It has been shown possible experimentally to produce nulls in the pattern of prime focus reflector antenna using discs mounted on the dish. A model of this antenna system is developed to evaluate optimal configurations and ideal performance. Aperture integration is the method of analysis used. Discs effects are modeled as a phase shift on the aperture. No secondary effects, such as diffraction, are considered. Based on the model developed, guidelines are presented for antenna design. Computer code was written to implement the model and a prediction of antenna systems performance is presented. Originator supplied keywords Antenna, Directional antenna, and Parabolic antennas. Author

Descriptors:

• *REFLECTORS
• *DIRECTIONAL ANTENNAS
• COMPUTER PROGRAMS
• OPTIMIZATION
• MODELS
• PERFORMANCE(ENGINEERING)
• SECONDARY
• THESES
• CONFIGURATIONS
• ANTENNAS
• FOCUSING
• DISKS
• PHASE SHIFT
• PARABOLIC ANTENNAS

Subject Categories:

• Electrical and Electronic Equipment
• Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE