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:
Apr. 30, 2024
Filed:
Jan. 15, 2021
Applicant:
The Trustees of Columbia University IN the City of New York, New York, NY (US);
Inventors:
Jose Antonio Bahamonde, New York, NY (US);
Ioannis Kymissis, New York, NY (US);
Assignee:
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/64 (2006.01); H03F 7/00 (2006.01); H03H 9/02 (2006.01); H03H 9/145 (2006.01); H03H 11/04 (2006.01);
U.S. Cl.
CPC ...
H03H 9/64 (2013.01); H03F 7/00 (2013.01); H03H 9/02559 (2013.01); H03H 9/145 (2013.01); H03H 9/14505 (2013.01); H03H 11/04 (2013.01);
Abstract
A non-reciprocal filter with parametric amplification to obtain non-reciprocal propagation of forward and reverse signals is disclosed. The non-reciprocal filter may include two asymmetrical transmission lines and a current source. The filter, when implemented in the acoustics domain using surface acoustic waves (SAW), may operate in a phase-coherent or a phase-incoherent degenerate mode, providing low insertion loss and high decibels of isolation.