Patent ID: 8559904

Claim:
A wireless communication element, comprising: a receive path configured to receive a first wireless communication signal and convert the first wireless communication signal into a first digital signal based at least on an oscillator signal; and a transmit path configured to convert a second digital signal into a second wireless communication signal based at least on the oscillator signal and transmit the second wireless communication signal; and an oscillator configured to output the oscillator signal to at least one of the receive path and the transmit path, the oscillator comprising: a crystal resonator; a squaring circuit coupled to the crystal resonator and configured to convert a sinusoidal signal produced by the crystal resonator to a square-wave signal, the squaring circuit comprising a bias circuit configured to transmit a selected bias voltage for the squaring circuit, the selected bias voltage selected from a plurality of potential bias voltages; and a control module coupled to the bias circuit and configured to select the selected bias voltage from the plurality of potential bias voltages, the control module further configured to: iteratively select each of the plurality of potential bias voltages for transmission by the bias circuit to the gate of the inverter; measure harmonics produced in the wireless communication element for each of the plurality of potential bias voltages; and select, as the selected bias voltage, the potential bias voltage for which harmonics produced in the wireless communication element are the smallest.