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:
Apr. 07, 1981
Filed:
Dec. 06, 1979
Applicant:
Inventors:
Mardis V Anderson, Richardson, TX (US);
Theodore A Dumas, Dallas, TX (US);
Assignee:
Rockwell International Corporation, El Segundo, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
343761 ; 3431 / ;
Abstract
A radio navigation antenna system suitable for use in an aircraft is disclosed. The fed element of the system is stationary, being at one end of a coaxial conductor which extends through a hollow shaft of a motor. Mounted around the hollow shaft is a ground plane disc capacitively coupled to the outer sleeve of the coaxial conductor, thereby avoiding the use of brushes in the system. A cylindrical dielectric antenna support is mounted on the ground plane disc around the fed element. A T-shaped reflector is formed by a conductive layer on the cylindrical surface of the antenna support.