| 摘要 |
Disclosed is a radio-frequency front-end circuit of a multiband terminal, comprising: radio-frequency transceiver chip, radio-frequency amplifier chip, and a radio-frequency switch. In the radio-frequency transceiver chip, all frequency bands share one transmit port; the radio-frequency amplifier chip comprises multiple radio-frequency amplifiers corresponding to frequency bands of transmit signals of the radio-frequency transceiver chip, and the multiple radio-frequency amplifiers are integrated as a whole and share one input port; the input port of the radio-frequency amplifier chip is connected to the transmit port of the radio-frequency transceiver chip; and the radio-frequency switch is connected to an output end of the radio-frequency amplifier chip, used for switching between different frequency band signals. |
