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:
Jan. 05, 1987
Filed:
Jan. 25, 1984
Applicant:
Inventor:
Frank S Gutleber, Little Silver, NJ (US);
Assignee:
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
342384 ; 343841 ;
Abstract
A notch antenna for the elimination of external interference sources such jamming, self-interference, atmospheric noise and man made noise is provided by a grounded electrically conductive shield placed in the front of an omnidirectional antenna coupled to radio communications apparatus, such as a receiver, whereby the shield blocks electromagnetic waves arriving within an angular arc defined by the position and size of the shielding element.