Accession Number:

AD0607423

Title:

BALANCED BACKFIRE ZIGZAG ANTENNAS.

Descriptive Note:

Technical rept. no. 82,

Corporate Author:

ILLINOIS UNIV URBANA ENGINEERING EXPERIMENT STATION

Personal Author(s):

• Mayes,Paul E.

Report Date:

1964-10-01

Pagination or Media Count:

19.0

Abstract:

Linearly polarized backfire antennas are described which have high front-to-back ratio and very low sidelobes. The backfire radiation is produced from a meandering conductor. The principal directional characteristics can be determined by using linear array theory. When the conductor is periodic this can be related to a series expansion of the fields in space harmonics. The radiation properties of periodic backfire zigzags are compared to the end-fire type previously reported. Bandwidth limitations on the backfire periodic zigzags are readily extended by tapering the structure to produce a log-periodic antenna. Measured patterns and impedance of several log-periodic zigzag antennas illustrate how the performance is related to that of the periodic structures. Author

Descriptors:

• (*LOG PERIODIC ANTENNAS
• THEORY)
• ANTENNAS
• ANTENNA RADIATION PATTERNS
• ANTENNA FEEDS
• POLARIZATION
• DESIGN
• PERFORMANCE (ENGINEERING)
• BANDWIDTH
• ULTRAHIGH FREQUENCY

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE