Low noise, low power subsampling receiver

US8452252B2 · kind B2 · utility

Assignee

• The Board of Trustees of the Leland Stanford Junior University · US

Inventors

• Carsten Barth · Stanford, US
• Umran S. Inan · Stanford, US
• Ivan Richard Linscott · Mountain View, US

Key dates

• Filing date: May 28, 2010
• Grant date: May 28, 2013
• Expiry date: Jun 23, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B1/18
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Techniques for a receiver includes a low noise amplifier, a Q-enhanced bandpass filter on a chip, and an analog to digital converter (ADC) at a sub-sampling speed suitable for an intermediate frequency (IF) signal. In some embodiments, a temperature compensation circuit is included. The receiver has an effective noise level less than 7 dB. In some embodiments a 1-bit ADC is used. In some of these embodiments, one or more switches in the ADC are inverted to cancel charge injection.