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. 06, 2010
Filed:
Mar. 22, 2005
Lawrence E. Connell, Naperville, IL (US);
David P. Kovac, Vernon Hills, IL (US);
Poojan A. Wagh, Sleepy Hollow, IL (US);
Vikram B. Karnani, Chicago, IL (US);
William T. Waldie, Libertyville, IL (US);
Tao Wu, Grayslake, IL (US);
Lawrence E. Connell, Naperville, IL (US);
David P. Kovac, Vernon Hills, IL (US);
Poojan A. Wagh, Sleepy Hollow, IL (US);
Vikram B. Karnani, Chicago, IL (US);
William T. Waldie, Libertyville, IL (US);
Tao Wu, Grayslake, IL (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
Transmission of a high frequency signal is provided by a passive mixer. The passive mixer receives a low frequency signal as an input. The passive mixer includes a plurality of transistors each with a gate, a source, and a drain. The passive mixer also includes a local oscillator connected to the gates of the transistors. The gates of the transistors are also connected to a DC bias proportional to the threshold voltage of the transistors. In addition, an output of the passive mixer may be attenuated by a passive attenuator wherein both the passive attenuator and passive mixer are substantially free of quiescent current.