The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 26, 2000
Filed:
Jul. 12, 1999
Applicant:
Inventor:
M Larry Goldstein, Palm Bay, FL (US);
Assignee:
Harris Corporation, Melbourne, FL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
343895 ;
Abstract
A broad beam helical antenna contains a monofilar winding of a constant helical diameter and large valued pitch angle. The diameter of the helical antenna is defined such that its circumference is slightly less than one wavelength of the circular polarized radio waves. The pitch angle lies in a relatively high range on the order of 18.degree. to 24.degree.. These parameters provide a generally uniform gain over a relatively wide beam angle on the order of 60.degree. off boresight. Such gain-uniformity facilitates maintaining a link between a satellite and mobile platform-mounted communication equipment.