RF front-end with on-chip transmitter/receiver isolation using the hall effect
AssigneeBroadcom Corporation
InventorsMohyee Mikhemar, Hooman Darabi
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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 a metal plate and an inductor that are configured to isolate the input of a low-noise amplifier (LNA) from the output of a power amplifier (PA) using the Hall effect. 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.
Claims33
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 using the Hall effect.
A gyrator, comprising:
- a metal plate coupled to a first and second port;
- and
- an inductor coiled around the metal plate,
- wherein the inductor is configured to receive a DC current to produce a magnetic field that passes through the metal plate perpendicular to the metal plate's surface,
- wherein the gyrator is configured to isolate the first port from the second port using the Hall effect.
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 configured to receive a signal from 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 using the Hall effect.
A radio frequency (RF) front-end configured to support full-duplex communication, comprising:
- a gyrator comprising a first port coupled to an antenna and a second port coupled to an output of a power amplifier (PA);
- and
- a transformer comprising a primary winding coupled to an input of a low-noise amplifier (LNA) 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 using the Hall effect.
Dependencies are inferred from the claim text.