Radio Frequency Receiver and Method for Down-Converting Signals to Baseband Signal Components
AssigneeStichting IMEC Nederland
InventorsEric Antonius Maria Klumperink, Vijaya Kumar Purushothaman
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Abstract
A radio frequency receiver comprising mixer circuitry to down-convert a received signal, which is transported on a signal line to baseband signal components, is provided. The mixer circuitry comprises a plurality of switched capacitors, each connected to the signal line through a signal side node and to a corresponding switch through a switch side node. In this context, a voltage is sensed at each switch side node of the plurality of switched capacitors and is read out through a respective grounded capacitor.
Claims20
A radio frequency receiver comprising:
- a mixer circuitry configured to down-convert a received signal that is transported on a signal line to baseband signal components, wherein the mixer circuitry comprises a plurality of switched capacitors, each connected to the signal line through a signal side node and to a corresponding switch through a switch side node,
- wherein a voltage is sensed at each switch side node of the plurality of switched capacitors and is read out through a respective grounded capacitor.
A method for down-converting a received signal that is transported on a signal line to baseband signal components in a radio frequency receiver comprising mixer circuitry, wherein the method comprises:
- connecting each of a plurality of switched capacitors to the signal line through a signal side node;
- and
- connecting each of the plurality of switched capacitors to a corresponding switch through a switch side node;
- sensing a voltage at each switch side node of the plurality of switched capacitors;
- and
- reading out the sensed voltage through a respective grounded capacitor.
Dependencies are inferred from the claim text.