SCHOTTKY ENHANCED BIAS CIRCUIT

摘要

Embodiments disclosed herein relate to a bias circuit that uses Schottky diodes. Typically, a bias circuit will include a number of transistors used to generate a bias voltage or a bias current for a power amplifier. Many wireless devices include power amplifiers to facilitate processing signals for transmission and/or received signals. By substituting the bias circuit design with a design that utilizes Schottky diodes, the required battery voltage of the bias circuit may be reduced enabling the use of lower voltage power supplies.

主权项

1. A bias circuit comprising:
a first Schottky diode including a cathode and an anode, the cathode in communication with a power amplifier; a field effect transistor (FET) with a source in communication with the anode of the first Schottky diode; and a bipolar junction transistor in communication with the FET, the bipolar junction transistor including a collector in communication with a gate of the FET and a base in communication with the source of the FET.