Front end module with active tuning of a balancing network
AssigneeBroadcom Corporation
InventorsMohyee Mikhemar, Hooman Darabi
Life of this patent
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Abstract
A radio front end includes a duplexer, a tunable balancing network, a detector module, and a processing module. The duplexer is operably coupled to an antenna and is operable to provide electrical isolation between an outbound wireless signal and an inbound wireless signal. The tunable balancing network is operably coupled to the duplexer and operable to establish an impedance that substantially matches an impedance of the antenna based on a tuning signal. The detector module is operable to generate an error signal based on an electrical performance characteristic of the duplexer. The processing module is operable to generate the tuning signal based on the error signal.
Claims19
A radio front end comprises:
- a duplexer operably coupled to an antenna, wherein the duplexer is operable to provide electrical isolation between an outbound wireless signal and an inbound wireless signal;
- a tunable balancing network operably coupled to the duplexer and operable to establish an impedance that substantially matches an impedance of the antenna based on a tuning signal;
- a detector module operable to generate an error signal based on an electrical performance characteristic of the duplexer;
- a processing module operable to generate the tuning signal based on the error signal.
A front end module comprises:
- a duplexer operably coupled to an antenna, wherein the duplexer is operable to provide electrical isolation between an outbound wireless signal and an inbound wireless signal;
- and
- a tunable balancing network operably coupled to the duplexer and operable to establish an impedance that substantially matches an impedance of the antenna based on a tuning signal, which is based on an electrical performance characteristic of the duplexer.
A radio transceiver module comprises:
- a detector module operable to generate an error signal based on an electrical performance characteristic of a duplexer;
- wherein the duplexer is operably coupled to an antenna and is operable to provide electrical isolation between an outbound wireless signal and an inbound wireless signal;
- and
- a processing module operable to generate the tuning signal based on the error signal and to provide the tuning signal to a tunable balancing network, wherein the tunable balancing network is operably coupled to the duplexer and operable to establish an impedance that substantially matches an impedance of the antenna based on the tuning signal.
Dependencies are inferred from the claim text.