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. 05, 2005
Filed:
Jan. 30, 2003
James C. Liu, Santa Rosa, CA (US);
Robert L. Shimon, Santa Rosa, CA (US);
Shigetsune Torin, Santa Rosa, CA (US);
Kenneth H. Wong, Santa Rosa, CA (US);
James C. Liu, Santa Rosa, CA (US);
Robert L. Shimon, Santa Rosa, CA (US);
Shigetsune Torin, Santa Rosa, CA (US);
Kenneth H. Wong, Santa Rosa, CA (US);
Agilent Technologies, Inc., Palo Alto, CA (US);
Abstract
An electronic calibration circuit for calibrating a network analyzer. The electronic calibration circuit comprises at least one port for coupling the electronic calibration circuit to the network analyzer. A plurality of switching circuits coupled to the port are operable to provide a plurality of impedance states for electronically calibrating the network analyzer, wherein a transmission line couples at least two of the plurality of switching circuits, the transmission line short enough to reduce interactions of impedance mismatches and to reduce transmission loss. The port and the plurality of switching circuits are comprised within an integrated circuit having a package size small enough to avoid cavity resonance at a high frequency.