RF front-end with on-chip transmitter/receiver isolation using a gyrator
AssigneeBroadcom Corporation
InventorsMohyee Mikhemar, Hooman Darabi
Life of this patent
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Abstract
An RF front-end with on-chip transmitter/receiver isolation using a gyrator is presented herein. The RF front end is configured to support full-duplex communication and includes a gyrator and a transformer. The gyrator includes two transistors that are configured to isolate the input of a low-noise amplifier (LNA) from the output of a power amplifier (PA). The gyrator is further configured to isolate the output of the PA from the input of the LNA. The gyrator is at least partially or fully capable of being integrated on silicon-based substrate.
Claims21
A radio frequency (RF) front-end configured to support full-duplex communication, comprising:
- a gyrator comprising a first port coupled to an input of a low-noise amplifier (LNA) and a second port coupled to an output of a power amplifier (PA);
- and
- a transformer comprising a primary winding coupled to an antenna and a secondary winding coupled between the first port and the second port,
- wherein the gyrator is configured to isolate the output of the PA from the input of the LNA.
A radio frequency (RF) front-end configured to support full-duplex communication, comprising:
- a gyrator comprising:
- a first transistor comprising a source coupled to ground, a drain coupled to a first port, and a gate coupled to a second port;
- and
- a second transistor comprising a source coupled to ground, a drain coupled to the second port, and a gate coupled to the first port;
- and
- a transformer comprising a primary winding coupled to an antenna and a secondary winding coupled between the first port and the second port of the gyrator,
- wherein the gyrator is configured to isolate an input of a low noise amplifier (LNA), coupled to the first port, from the output of a power amplifier (PA), coupled to the second port.
A radio frequency (RF) front-end configured to support full-duplex communication, comprising:
- a first transistor comprising a source coupled to ground, a drain coupled to a first port, and a gate coupled to a second port;
- and
- a second transistor comprising a source coupled to ground, a drain coupled to the second port, and a gate coupled to the first port,
- wherein the first and second transistor are configured to isolate an input of a low noise amplifier (LNA), coupled to the first port, from the output of a power amplifier (PA), coupled to the second port.
A radio frequency (RF) front-end configured to support full-duplex communication, comprising:
- a gyrator comprising a first port coupled to an input of a receiver and a second port coupled to an output of a transmitter;
- and
- a transformer comprising a primary winding coupled to a signal transducer and a secondary winding coupled between the first port and the second port,
- wherein the gyrator is configured to isolate the output of the transmitter from the input of the receiver.
Dependencies are inferred from the claim text.