Simplified horn antenna parameter estimation using selective criteria

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:6243799

Ewing, P D

An approximation can be used to avoid the complex mathematics and computation methods typically required for calculating the gain and radiation pattern of electromagnetic horn antenna. Because of the curvature of the antenna wave front, calculations using conventional techniques involve solving the Fresnel integrals and using computer-aided numerical integration. With this model, linear approximations give a reasonable estimate of the gain and radiation pattern using simple trigonometric functions, thereby allowing a hand calculator to replace the computer. Applying selected criteria, the case of the E-plane horn antenna was used to evaluate this technique. Results showed that the gain approximation holds for an antenna flare angle of less than 10{degree} for typical antenna dimensions, and the E field radiation pattern approximation holds until the antenna's phase error approaches 60{degree}, both within typical design parameters. This technique is a useful engineering tool. 4 refs., 11 figs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: USDOD
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6243799
• Report Number(s): CONF-9103123-1; ON: DE91007195
• Resource Relation: Conference: 7. annual review of progress in applied computational electromagnetics, Monterey, CA (USA), 19-21 Mar 1991
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANTENNAS
WAVE PROPAGATION
ELECTROMAGNETIC FIELDS
ANGULAR DISTRIBUTION
APERTURES
NUMERICAL SOLUTION
POWER DENSITY
DISTRIBUTION
ELECTRICAL EQUIPMENT
EQUIPMENT
OPENINGS
657002* - Theoretical & Mathematical Physics- Classical & Quantum Mechanics