CONSTANT-BEAMWIDTH ANTENNA DEVELOPMENT.

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Abstract:

The report describes an antenna which can be used as a surveillance antenna over frequency bandwidths as large as 121, and, through mechanical motion of the feed portion, as an automatic tracking antenna over 101 bandwidths. The antenna produces a pattern whose half-power beamwidth is relatively constant over a large portion of the total frequency band of operation. Theoretical formulations are presented for an antenna of this type, together with some measured data taken from previous antennas built by EDL employing the constantbeamwidth principle. Finally, the results of a computer program are described which was aimed at determining the secondary radiation pattern of such an antenna according to several design variables. Author

Author(s):
No Author(s) Identified
Author Organization(s):
ELECTRONIC DEFENSE LABS SYLVANIA ELECTRONIC SYSTEMS-WEST MOUNTAIN VIEW CALIF
Descriptive Note:
Technical memo.
Annotation:
Constant-beamwidth antenna development.
Pagination:
0056

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
EDL-M891
Contract/Grant Number(s):
DA-28-043-AMC-00379(E)
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
REFLECTORS, ANTENNA FEEDS, GAIN, SEARCH RADAR, BANDWIDTH, TRACKING, LENSES, POWER, ANTENNA APERTURES
Field(s)/Group(s):
Electrical and Electronic Equipment
Report Date:
1965 Nov 19