Patent ID: 8174325

Claim:
An injection-locking oscillator (ILO) array comprising: a parallel array of oscillator rings wherein each oscillator ring is coupled to simultaneously receive broadband RF signals having a power spectrum, each oscillator ring comprising: a nonlinear injection-locking oscillator (ILO) for generating a first signal representative of a detected frequency from the received RF signals; a phase detector for mixing the first signal and the RF signal to form a phase difference signal between the first signal and the RF signals; a comparator for comparing the mixed signal with a predetermined threshold to form a readout signal representative of the detected RF signals; wherein each ILO is tuned to oscillate with different natural frequencies where the phase response is a function of the input amplitude and frequency of the received RF signals to determine the presence of the RF signals; means for correlating the response of at least two of the ILO that are locked to the same RF signal and yields a determined solution for both the amplitude and frequency, and wherein each ILO includes single-ended ring oscillators.