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:
Jul. 21, 2015
Filed:
Mar. 11, 2015
Werlatone, Inc., Brewster, NY (US);
Allen F. Podell, Palo Alto, CA (US);
Harishankar Nagarajan, Fishkill, NY (US);
Werlatone, Inc., Patterson, NY (US);
Abstract
A hybrid coupler may include first, second, third, and fourth ports, and first, second, third, fourth, fifth, sixth, seventh, and eighth transmission lines. Each of the transmission lines may include a signal conductor inductively coupled to a signal-return conductor. The first, second, third, and fourth transmission lines may be connected together to form a loop with the first, second, and third transmission lines in series and the fourth transmission line twisted. The fifth, sixth, seventh, and eighth transmission lines may respectively connect respective junctions of the loop to the first, second, third, and fourth ports. A junction of the signal-return conductors of the first, fourth, and fifth transmission lines may not be directly connected to ground. Similarly, a junction of the signal conductor of the fourth transmission line and the signal-return conductors of the third and eighth transmission lines may not be directly connected to ground.