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. 01, 2001
Filed:
May. 29, 1998
Applicant:
Inventor:
John C. Kerley, Elbert, CO (US);
Assignee:
Agilent Technologies Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/15 ; H01P 5/18 ;
U.S. Cl.
CPC ...
H01P 1/15 ; H01P 5/18 ;
Abstract
An AC signal is switched between two circuit branches using a transformer or at least one directional coupler as a coupling device. Electronically controlled switches shunt one of two terminals of the coupling device to AC ground. The input signal is propagated out of the non-shunted terminal to one of the two circuit branches. The electronically controlled switches may be relays, transistors, or diodes. Diodes prevent the AC signal from being shunted to AC ground when reverse biased and shunt the AC signal to AC ground when forward biased.