Communication circuit for supporting communication function and electronic device including the same

An electronic device comprising:

• a communication circuit comprising:
• an antenna;
• and
• a plurality of radio frequency (RF) module modules, each of the RF modules comprising:
• a transmit amplifier configured to amplify a signal output from a transceiver;
• a front-end switching circuit configured to connect to the antenna;
• a duplexer or quadplexer configured to be disposed between a front-end switching circuit and the transmit amplifier;
• at least one back-end switching circuit coupled to the duplexer or the guadplexer quadplexer;
• and
• at least one receive amplifier that is disposed between the at least one back -end back-end switching circuit and the receiver transceiver,
• wherein the front-end switching circuit is configured to connect the duplexer or quadplexer for an RF module within the plurality of RF modules to the antenna,
• wherein the at least one receive amplifier is configured to low-noise amplify at least a part of a multi-band signal, and
• wherein the transceiver comprises a mixer configured to mix the multi-band signal low-noise amplified by the at least one receive amplifier.

A portable communication device comprising:

• an antenna;
• a transceiver;
• a radio frequency (RF) module, the RF module including:
• a front-end switching circuit connected with the antenna;
• a transmitting amplifier configured to amplify an output signal from the transceiver;
• a plurality of duplexers including a first duplexer and a second duplexer or a quadplexer disposed between the front-end switching circuit and the transmitting amplifier;
• a plurality of back-end switching circuits including a first back-end switching circuit and a second back-end switching circuit disposed between the plurality of duplexers or the quadplexer and the transceiver;
• and
• a plurality of receiving amplifiers including a first receiving amplifier and a second receiving amplifier, the first receiving amplifier disposed between the first back-end switching circuit and the transceiver, and the second receiving amplifier disposed between the second back-end switching circuit and the transceiver,
• wherein the first receiving amplifier is configured to receive, from the first back-end switching circuit between the first duplexer or the quadplexer and the transceiver, signals corresponding to any one of a first frequency band and a second frequency band and to output, to the transceiver, first amplified signals corresponding to the signals received by the first receiving amplifier from the first back-end switching circuit,
• wherein the second receiving amplifier is configured to receive, from the second back-end switching circuit between the second duplexer or the quadplexer and the transceiver, signals corresponding to any one of a third frequency band and a fourth frequency band and to output, to the transceiver, second amplified signals corresponding to the signals received by the second receiving amplifier from the second back-end switching circuit,
• wherein the RF module is configured to concurrently process the first amplified signals, corresponding to any one of the first frequency band and the second frequency band, from the first receiving amplifier and the second amplified signals, corresponding to any one of the third frequency band and the fourth frequency band, from the second receiving amplifier,
• wherein the first receiving amplifier is configured to selective receive and amplify signals corresponding to any one of a first plurality of frequency bands including the first and second frequency bands, and the second receiving amplifier is configured to selectively receive and amplify signals corresponding to any one of a second plurality of frequency bands including the third and fourth frequency bands,
• wherein the first receiving amplifier is configured to be connected with at least one of the plurality of duplexers or the quadplexer via the first back-end switching circuit and the second receiving amplifier is configured to be connected with at least one of the plurality of duplexers or the quadplexer via the second back-end switching circuit, and
• wherein the RF module is configured to concurrently provide, with respect to an input signal received via the antenna, a first connection and a second connection between the antenna and the transceiver, the first connection to be established using the front-end switching circuit, the first duplexer or the quadplexer, the first back-end switching circuit and the first receiving amplifier, and the second connection to be established using the front-end switching circuit, the second duplexer or the quadplexer, the second back-end switching circuit and the second receiving amplifier.

A portable communication device comprising:

• an antenna;
• a transceiver;
• a radio frequency (RF) module, the RF module including:
• a front-end switching circuit connected with the antenna;
• a transmitting amplifier configured to amplify an output signal outputted from the transceiver;
• a multiplexer disposed between the front-end switching circuit and the transmitting amplifier;
• a plurality of back-end switching circuits including a first back-end switching circuit and a second back-end switching circuit disposed between the multiplexer and the transceiver;
• and
• a plurality of receiving amplifiers including a first receiving amplifier and a second receiving amplifier, the first receiving amplifier disposed between the first back-end switching circuit and the transceiver, and the second receiving amplifier disposed between the second back-end switching circuit and the transceiver,
• wherein the first receiving amplifier is configured to receive, from the first back-end switching circuit between the multiplexer and the transceiver, signals corresponding to any one of a first frequency band and a second frequency band and to output, to the transceiver, first amplified signals corresponding to the signals received by the first receiving amplifier from the first back-end switching circuit,
• wherein the second receiving amplifier is configured to receive, from the second back-end switching circuit between the multiplexer and the transceiver, signals corresponding to any one of a third frequency band and a fourth frequency band and to output, to the transceiver, second amplified signals corresponding to the signals received by the second receiving amplifier from the second back-end switching circuit,
• wherein the RF module is configured to concurrently process the first amplified signals, corresponding to any one of the first frequency band and the second frequency band, from the first receiving amplifier and the second amplified signals, corresponding to any one of the third frequency band and the fourth frequency band, from the second receiving amplifier,
• wherein the first receiving amplifier is configured to selectively receive and amplify signals corresponding to any one of a first plurality of frequency bands including the first and second frequency bands, and the second receiving amplifier is configured to amplify signals corresponding to any one of a second plurality of frequency bands including the third and fourth frequency bands,
• wherein the first receiving amplifier is configured to be connected with the multiplexer via the first back-end switching circuit, and the second receiving amplifier is configured to be connected with the multiplexer via the second back-end switching, and
• wherein the RF module is configured to simultaneously provide, with respect to an input signal received via the antenna, a first connection and a second connection between the antenna and the transceiver, the first connection to be established using the front-end switching circuit, the multiplexer, the first back-end switching circuit and the first receiving amplifier, and the second connection to be established using the front-end switching circuit, multiplexer, the second back-end switching circuit and the second receiving amplifier.

A portable communication device comprising:

• an antenna;
• a transceiver;
• a radio frequency (RF) module, the RF module including:
• a front-end switching circuit connected with the antenna;
• a transmitting amplifier configured to amplify an output signal outputted from the transceiver;
• a plurality of multiplexers including a first multiplexer and a second multiplexer, the first multiplexer forming a portion a first signal path between the transmitting amplifier and the front-end switching circuit, and the second multiplexer forming a portion of a second signal path between the transmitting amplifier and the front-end switching circuit;
• a plurality of back-end switching circuits including a first back-end switching circuit and a second back-end switching circuit, the first back-end switching circuit forming a portion of a third signal path between the first multiplexer and the transceiver, and the second back-end switching circuit forming a portion of a fourth signal path between the second multiplexer and the transceiver;
• and
• a plurality of receiving amplifiers including a first receiving amplifier and a second receiving amplifier, the first receiving amplifier disposed between the first back-end switching circuit and the transceiver and forming another portion of the third signal path, and the second receiving amplifier disposed between the second back-end switching circuit and the transceiver and forming another portion of the fourth signal path,
• wherein the first receiving amplifier is configured to receive, via the first back-end switching circuit, signals corresponding to any one of a first frequency band and a second frequency band and to output first amplified signals corresponding to the received signals,
• wherein the second receiving amplifier is configured to receive, via the second back-end switching circuit, signals corresponding to any one of a third frequency band and a fourth frequency band and to output second amplified signals corresponding to the received signals,
• wherein the RF module is configured to concurrently process the first amplified signals, corresponding to any one of the first frequency band and the second frequency band, from the first receiving amplifier and the second amplified signals, corresponding to any one of the third frequency band and the fourth frequency band, from the second receiving amplifier,
• wherein the first receiving amplifier is configured to selectively receive and amplify signals corresponding to any one of a first plurality of frequency bands including the first and second frequency bands and the second receiving amplifier is configured to selectively receive and amplify signals corresponding to any one of a second plurality of frequency bands including the third and fourth frequency bands, and
• wherein each of first receiving amplifier and the second receiving amplifier is configured to connect to the plurality of multiplexers through the first back-end switching circuit or the second back-end switching respectively.

A communication circuit comprising:

• an antenna;
• and
• a radio frequency (RF) module, wherein the RF module comprising:
• a transmit amplifier configured to amplify a signal output from a transceiver,
• a front-end switching circuit configured to connect to the antenna,
• a duplexer or quadplexer configured to be disposed between a front-end switching circuit and the transmit amplifier,
• at least one back-end switching circuit coupled to the duplexer or the quadplexer,
• at least one receive amplifier that is disposed between the at least one back-end switching circuit and the transceiver, and
• at least one bypass circuit configured to connect in parallel to the at least one receive amplifier,
• wherein the at least one receive amplifier is configured to low-noise amplify at least a part of a multi-band signal, and
• wherein the transceiver comprises a mixer configured to mix the multi-band signal low-noise amplified by the at least one amplifier.