Apparatus and methods for radio frequency signal boosters

摘要

Provided herein are apparatus and methods for radio frequency (RF) signal boosters. In certain implementations, a multi-band signal booster is provided for boosting the uplink and downlink channels of at least a first frequency band and a second frequency band. In certain configurations, the downlink channels of the first and second channels are adjacent, and the signal booster includes a first amplification path for boosting the uplink channel of the first frequency band, a second amplification path for boosting the uplink channel of the second frequency band, and a third amplification path for boosting both downlink channels of the first and second frequency bands.

主权项

1. A radio frequency signal booster comprising:
a first amplification path comprising a first band-pass filter configured to pass a first channel of a first frequency band and to attenuate a second channel of the first frequency band, wherein the first channel has a first channel type and the second channel has a second channel type, wherein the first channel type comprises one of an uplink channel or a downlink channel, and wherein the second channel type comprises the other of the uplink channel and the downlink channel, wherein the first amplification path further comprises a first low noise amplifier (LNA) and a first power amplifier (PA), wherein the first band-pass filter is disposed in a first signal path between an output of the first LNA and an input of the first PA; a second amplification path comprising a second band-pass filter configured to pass a first channel of a second frequency band and to attenuate a second channel of the second frequency band, wherein the first channel of the second frequency band has the first channel type, wherein the second channel of the second frequency band has the second channel type, wherein the second amplification path further comprises a second LNA and a second PA, wherein the second band-pass filter is disposed in a second signal path between an output of the second LNA and an input of the second PA; a third amplification path comprising a third band-pass filter configured to pass both the second channel of the first frequency band and the second channel of the second frequency band, and wherein the third band-pass filter is further configured to attenuate both the first channel of the first frequency band and the first channel of the second frequency band, wherein the third amplification path further comprises a third LNA and a third PA, wherein the third band-pass filter is disposed in a third signal path between an output of the third LNA and an input of the third PA; a first multiplexer comprising a first terminal, a second terminal, and a third terminal, wherein the first terminal is electrically connected to an output of the first PA, wherein the second terminal is electrically connected to an output of the second PA, and wherein the third terminal is electrically connected to an input of the third LNA, and a second multiplexer comprising a first terminal, a second terminal, and a third terminal, wherein the first terminal of the second multiplexer is electrically connected to an input of the first LNA, wherein the second terminal of the second multiplexer is electrically connected to an input of the second LNA, and wherein the third terminal of the second multiplexer is electrically connected to an output of the third PA.