Receiver including a tracking filter
US8725103B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | May 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J2200/32
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A receiver includes a low noise amplifier having an input for receiving a radio frequency signal, and an output. The receiver further includes a tracking filter having an input coupled to the output of the low noise amplifier. The tracking filter including a bandpass filter configured to pass the radio frequency signals. The bandpass filter includes a variable capacitor having a first electrode coupled to the input of the tracking filter for receiving the radio frequency signals, and a second electrode coupled to a power supply terminal. The bandpass filter further includes a transformer having a primary winding including a first terminal coupled to the first electrode of the variable capacitor and a second terminal coupled to a second power supply terminal. The transformer further includes a secondary winding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.