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. 31, 1989
Filed:
Mar. 13, 1987
Applicant:
Inventor:
Yalcin Ayasli, Lexington, MA (US);
Assignee:
Hittite Microwave Corporation, Woburn, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ; H01P / ; H03H / ; H03H / ;
U.S. Cl.
CPC ...
333-1 ; 307262 ; 333-11 ; 333138 ; 333164 ;
Abstract
A non-reciprocal phase shifter including a transmission medium connected between first and second terminals and having a predetermined phase shift which is the same in each direction and an amplifier circuit connected between the first and second terminals for introducing its inherent phase shift in one direction and a phase shift in excess of its inherent phase shift in the other direction for establishing a non-reciprocal phase shift; and a circulator made from such a phase shifter.