RADIO-FREQUENCY POWER AMPLIFIER WITH AMPLITUDE MODULATION TO PHASE MODULATION (AM-PM) COMPENSATION
An electronic device may include wireless circuitry with a processor, a transceiver, an antenna, and a front-end module coupled between the transceiver and the antenna. The front-end module may include one or more power amplifiers for amplifying a signal for transmission through the antenna. A power...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | An electronic device may include wireless circuitry with a processor, a transceiver, an antenna, and a front-end module coupled between the transceiver and the antenna. The front-end module may include one or more power amplifiers for amplifying a signal for transmission through the antenna. A power amplifier (50) may include a phase distortion compensation circuit (58). The phase distortion compensation circuit (58) may include one or more n-type metal-oxide-semiconductor capacitors (N1, N2) configured to receive a bias voltage (Vbias). The bias voltage (Vbias) may be set to provide the proper amount of phase distortion compensation. |
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