Patent ID: 7769355

Claim:
A system-in-package wireless communication device, comprising: a system-in-package substrate; a transceiver mounted on the system-in-package substrate and configured to convert an input electric signal to a radio frequency signal; a system-in-package enclosure configured to encapsulate at least the transceiver and part of the system-in-package substrate, wherein the system-in-package enclosure comprises a window; a prepackaged power amplifier module mounted on the system-in-package substrate and under the window in the system-in-package enclosure, the prepackaged power amplifier module comprising: a single-die substrate mounted on the system-in-package substrate; a power amplifier die on the single-die substrate, the power amplifier die comprising a power amplifier circuit configured to produce an amplified radio frequency signal in response to the radio frequency signal and a power sensing circuit configured to detect the amplified radio frequency signal and to output a power sensing signal; and a prepackage enclosure configured to encapsulate the power amplifier die on the single-die substrate, wherein the prepackage enclosure is exposed to the ambient environment through the window in the system-in-package enclosure; and a base band processor mounted on the system-in-package substrate, wherein the base band processor is connected with the power sensing circuit and is configured to receive a power sensing signal from the power sensing circuit, the base band processor being configured to send the input electric signal to the transceiver.