Frequency multiplier apparatus and operating method thereof

摘要

The present invention provides a frequency multiplier apparatus. The frequency multiplier apparatus includes an injection-locked frequency multiplier and a frequency-to-control signal converter. The injection-locked frequency multiplier outputs an output signal having a first frequency in response to an input signal having a first basic frequency. The frequency-to-control signal converter provides a first control signal to the injection-locked frequency multiplier in response to the input signal. The injection-locked frequency multiplier adjusts the first frequency to a second frequency in response to a change of the first control signal when the first basic frequency is changed to a second basic frequency.

主权项

1. A frequency multiplier apparatus, comprising:
an injection-locked frequency multiplier receiving an input signal having a first basic frequency, and outputting an output signal having a first frequency in response to the input signal; and a frequency-to-control signal converter parellelly receiving the input signal, and providing a first control signal to the injection-locked frequency multiplier in response to the input signal, wherein the injection-locked frequency multiplier adjusts the first frequency to a second frequency in response to a change of the first control signal when the first basic frequency is changed to a second basic frequency, the frequency-to-control signal converter includes a limiting amplifier and a power detector, the limiting amplifier amplifies the input signal to generate a power signal, and the power detector detects the power signal and transforms the power signal into the first control signal.