A parabolic dish antenna has a conical beam 20° wide, Find the directivity of the antenna.

EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN:9781337516549
Author:Simmons
Publisher:Simmons
Chapter25: Television, Telephone, And Low-voltage Signal Systems
Section25.1: Television Circuit
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A parabolic dish antenna has a conical beam 20° wide, Find the directivity of the antenna.
Transcribed Image Text:A parabolic dish antenna has a conical beam 20° wide, Find the directivity of the antenna.
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