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:
Nov. 19, 2013
Filed:
Feb. 10, 2010
Mark W. Ingalls, Spring, TX (US);
John Williams, Milford, DE (US);
James R. Callaway, Melbourne, FL (US);
Mark W. Ingalls, Spring, TX (US);
John Williams, Milford, DE (US);
James R. Callaway, Melbourne, FL (US);
Spectrum Control, Inc., Fairview, PA (US);
Abstract
A directional coupler having (a) a first coupled microstrip section having a first terminus (T) and a second terminus (T), (b) a second coupled microstrip section having a first terminus at Tand a second terminus (T), and (c) a first phase-velocity-compensating capacitor connected across the conductors of the microstrip sections at Tis disclosed. The coupler also may include a second phase-velocity-compensating capacitor connected at T, and a third phase-velocity compensating capacitor connected across the conductors at T