Optimal antenna swap implementations in RF front end modules for TDD bands
AssigneeSkyworks Solutions, Inc.
InventorsAnand Raghavan, David Richard Pehlke
Life of this patent
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Abstract
Aspects of the disclosure include a front-end module comprising one or more receive ports configured to be coupled to a transceiver, at least one low-noise amplifier configured to be coupled to the one or more receive ports, one or more antenna ports configured to be coupled to one or more respective antennas, and a multiplexer coupled to the one or more receive ports and to the one or more antenna ports, the multiplexer being configured to route a signal received at the one or more antenna ports to a selected receive port of the one or more receive ports.
Claims20
A front-end module comprising:
- one or more receive ports configured to be coupled to a transceiver;
- at least one low-noise amplifier configured to be coupled to the one or more receive ports;
- a common filter coupled to a receive path and a transmit path of the front-end module;
- one or more antenna ports configured to be coupled to one or more respective antennas;
- and
- a multiplexer coupled to the one or more receive ports and to the one or more antenna ports, the multiplexer being configured to route a signal received at the one or more antenna ports to a selected receive port of the one or more receive ports through the common filter.
A front-end module comprising:
- one or more receive ports configured to be coupled to a transceiver;
- at least one low-noise amplifier configured to be coupled to the one or more receive ports;
- one or more antenna ports configured to be coupled to one or more respective antennas;
- at least one remote-module receive port configured to be coupled to a remote module and configured to receive one or more signals from the remote module;
- and
- a multiplexer coupled to the one or more receive ports and to the one or more antenna ports, the multiplexer being configured to
- route a signal received at the one or more antenna ports to a selected receive port of the one or more receive ports, and
- route the one or more signals from the at least one remote-module receive port to the one or more receive ports coupled to the transceiver.
A method of operating an amplifier module having one or more receive ports, one or more antenna ports, an antenna switch module, a common filter coupled to a transmit path and a receive path, and a multiplexer, the method comprising:
- receiving one or more receive signals at the one or more antenna ports;
- routing, by the antenna switch module, the one or more receive signals to the multiplexer via the common filter and the receive path;
- and
- routing, by the multiplexer, the one or more receive signals to a selected receive port of the one or more receive ports.
Dependencies are inferred from the claim text.