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. 28, 1993
Filed:
Dec. 06, 1991
Applicant:
Inventor:
James K Breakall, Port Matilda, PA (US);
Assignee:
The Pennsylvania Research Corporation, University Park, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
3437925 ; 343797 ; 343853 ;
Abstract
A phased antenna array is described that includes a conductive ground plane and a plurality of log-periodic antennas, each antenna having a plurality of radiating elements, each radiating element having a resonant frequency. Each log-periodic antenna extends from a common feed region at an acute angle with respect to the conductive ground plane, the angle assuring that all said radiating elements having a common resonant frequency exhibit an identical electrical distance from each other and from the ground plane.