Methods, apparatus, and system for frequency doubler using a passive mixer for millimeter wave devices

A method, comprising:

• determining a target output voltage of a frequency doubler comprising at least one passive mixer comprising at least one transistor configured to receive a back gate voltage;
• determining an output voltage of the frequency doubler, wherein the output voltage of the frequency doubler is based at least in part on the back gate voltage of the at least one transistor;
• increasing a back gate voltage of the at least one transistor, in response to determining that the output voltage is below the target output voltage;
• and
• decreasing the back gate voltage of the at least one transistor, in response to determining that the output voltage is above the target output voltage.

A system, comprising:

• a semiconductor device processing system to manufacture a semiconductor device;
• and
• a processing controller operatively coupled to said semiconductor device processing system, said processing controller configured to control an operation of the semiconductor device processing system;
• wherein the semiconductor device processing system is adapted to:
• form a frequency doubler, comprising
• forming at least one passive mixer comprising at least one of the following:
• at least one transistor configured to receive a back gate voltage;
• at least one first input driver circuit comprising a first inverter and a second inverter;
• and
• two second input driver circuits each comprising a first inverter and a second inverter.