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:
Jun. 29, 1993
Filed:
Feb. 25, 1992
Applicant:
Inventors:
Jar J Lee, Irvine, CA (US);
James V Strahan, Brea, CA (US);
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ;
U.S. Cl.
CPC ...
333 241 ; 333161 ;
Abstract
A microwave ferrite phase shifter wherein three parallel microstrip lines are disposed on a planar ferrite substrate surface opposite a ground plane disposed on an opposite planar surface of the substrate, the lines defining two sets of quadrature E-fields within the substrate to produce a circularly polarized wave therein, the amount of phase shift between the input and output ports of the phase shifter being determined by the magnitude of a magnetic field produced in the substrate in the direction of its axis by a current-carrying coil, for example.