Directional annular slot antenna

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Description

FIG. 1 is a top prospective view of a directional annular slot antenna, showing our new design;

FIG. 2 is top plan view; and

FIG. 3 is a side view; and

FIG. 4 is a bottom plan view.

Referenced Cited
U.S. Patent Documents
D227785 July 1973 Kaysen
D244140 April 26, 1977 Zinichev et al.
2508085 May 1950 Alford
2834959 May 1958 Dorne
3447159 May 1969 Stromswold
Patent History
Patent number: D260895
Type: Grant
Filed: Mar 14, 1979
Date of Patent: Sep 22, 1981
Assignee: The United States of America as represented by Field Operations Bureau Office, FCC (Washington, DC)
Inventors: Arthur Luedtke (Marietta, GA), William F. Bentley (Smyrna, GA)
Primary Examiner: Bernard Ansher
Attorney: Wm. Ferrel Bentley
Application Number: 6/20,295
Classifications
Current U.S. Class: D14/86
International Classification: D1403;