Segmented main-auxiliary branch configurations for radio frequency applications

A radio-frequency (RF) module comprising:

• a packaging substrate configured to receive a plurality of devices;
• and
• a circuit assembly mounted on the packaging substrate, the circuit assembly including a segmented main-auxiliary branch including a plurality of main-auxiliary pairs coupled in series, each main-auxiliary pair having a main field-effect transistor (FET) coupled in parallel with an auxiliary FET so that the main FET and the auxiliary FET share source and drain nodes;
• the circuit assembly also including a gate bias network connected to one or more of the plurality of main FETs and configured to bias the main FETs connected thereto in a strong inversion region;
• and the circuit assembly also including an auxiliary bias network connected to one or more of the plurality of auxiliary FETs and configured to bias the auxiliary FETs connected thereto in a weak inversion region.

A wireless device comprising:

• a transceiver configured to process radio-frequency (RF) signals;
• an RF module in communication with the transceiver, the RF module including a circuit assembly including a segmented main-auxiliary branch including a plurality of main-auxiliary pairs coupled in series, each main-auxiliary pair having a main field-effect transistor (FET) coupled in parallel with an auxiliary FET so that the main FET and the auxiliary FET share source and drain nodes;
• the circuit assembly also including a gate bias network connected to one or more of the plurality of main FETs and configured to bias the main FETs connected thereto in a strong inversion region;
• and the circuit assembly also including an auxiliary bias network connected to one or more of the plurality of auxiliary FETs and configured to bias the auxiliary FETs connected thereto in a weak inversion region;
• and
• an antenna in communication with the RF module, the antenna configured to facilitate transmitting and/or receiving of the RF signals.