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US 8,923,777 B2Granted
Low-IF transceiver architecture
AssigneeSemiconductor Components Industries, LLC
InventorsMohammad-Reza Nezhad-Ahmadi, Gareth Pryce Weale
Life of this patent
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Abstract
A transceiver, receiver, and transmitter are provided. The transceiver may also include a programmable matching block configured to implement impedance-matching between an antenna and the receiver and/or between the antenna and the transmitter. The programmable matching block may implement the impedance-matching through a shared matching circuit block. The programmable matching block may include at least one of a programmable inductor and a programmable capacitor.
Claims14
A transceiver, comprising:
- a receiver;
- a transmitter;
- and
- a programmable matching block that compensates for antenna impedance variation due to environment change and implementing impedance-matching between an antenna and a receiver input and between the antenna and a transmitter output through a shared matching circuit block, the programmable matching block including an inductor and a programmable capacitor coupled in parallel between terminals of the transmitter and the receiver in the shared matching block.
1 more element
A transceiver, comprising:
- a receiver;
- a transmitter;
- and
- a programmable matching block that compensates for antenna impedance variation due to environment change and implementing impedance-matching between an antenna and a receiver input and between the antenna and a transmitter output through a shared matching circuit block, the programmable matching block including a first programmable capacitor coupled in parallel between upper and lower terminals of the antenna, a second programmable capacitor coupled in parallel between upper and lower terminals of the transmitter and the receiver in the shared matching block, a first inductor coupled between the upper terminal of the antenna and the upper terminal of the transmitter and receiver in the shared matching block and between the first programmable capacitor and the second programmable capacitor, and a second inductor coupled between the lower terminal of the antenna and the lower terminal of the transmitter and receiver in the shared matching block and between the first programmable capacitor and the second programmable capacitor.
1 more element
Dependencies are inferred from the claim text.