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. 18, 2006
Filed:
May. 21, 2003
Applicants:
Wayne Struble, Franklin, MA (US);
Norbert A. Schmitz, Salem, NH (US);
Inventors:
Wayne Struble, Franklin, MA (US);
Norbert A. Schmitz, Salem, NH (US);
Assignee:
M/A-COM, Inc., Lowell, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A single-pole multiple-throw RF switch includes first and second FET arrangements, each having a gate and a controlled current path (CCP). One end of the CCP of each FET is connected to a common port by way of an arrangement which blocks DC flow between the FETs, but allows RF flow. Bias is applied to the gates of the FETs to enable RF flow through the CCP of a selected one and not through the others. One version uses a single bias source and cross-coupled resistors, and another version uses plural bias sources switched to the various FETs.