A novel constant voltage / constant current (CV/CC) parallel operation HBT power amplifier (PA) configuration is proposed. By combining two HBT's having different base bias circuits for each (one is CV and the other is CC), non-linearity at large back-off region can be canceled out. Therefore, both low quiescent current and enough ACPR performance can be achieved. The fabricated CV/CC parallel operation HBT PA demonstrates extremely low quiescent current of 20mA and ACPR of less than -38dBc at the output power range up to 27.5dBm.
|Number of pages||4|
|Publication status||Published - 2002 Jan 1|
|Event||2002 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium - Seatle, WA, United States|
Duration: 2002 Jun 2 → 2002 Jun 4
|Other||2002 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium|
|Period||02/6/2 → 02/6/4|
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