Accession Number:

AD0431250

Title:

FORESHORTENED LOG PERIODIC DIPOLE ARRAY,

Descriptive Note:

Corporate Author:

SYLVANIA ELECTRONIC SYSTEMS-WEST MOUNTAIN VIEW CALIF ELECTRONIC DEFENSE LABS

Personal Author(s):

Report Date:

1963-09-12

Pagination or Media Count:

30.0

Abstract:

The development is described of a constant-width log periodic dipole array with inductively loaded radiating elements. A varying amount of inductive reactance is introduced to the equal length elements, resulting in elements of varying electrical lengths for broad-band operation. While maintaining a constant element-spacing-toelectrical-length ratio and compensating for the increasing Q of the loaded elements by increasing the design ratio, good experimental results were obtained from antenna models with element foreshortenings up to two-to-one. An expression for the varying design ratio is developed, the approximate amount of inductive reactance necessary for a given amount of element foreshortening is shown, and performance data of an experimental model are given. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE