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:
May. 06, 1980
Filed:
Jun. 16, 1978
Gerald I Klein, Baltimore, MD (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A unidirectional phase shifter provides selectable phase changes for linearly polarized microwaves of electromagnetic radiation entering the phase shifter in one direction and constant insertion phase for linearly polarized microwaves entering the phase shifter in the opposite direction. The phase shifter consists of two ferrite phasor sections arranged such that the phase changes of the two sections add for one direction of signal flow and cancel for the other. Each phasor section includes a ferrite half-wave plate, at one end of which is coupled a ferrite quarter-wave plate, and at the other end of which is coupled a dielectric quarter-wave plate. The dielectric quarter-wave plate of one of the phasor sections is coupled to the ferrite quarter-wave plate of the other phasor section.