INJECTION LOCKING BASED POWER AMPLIFIER
First Claim
1. A method comprising:
- inputting a reference signal through an injection circuit of an oscillator circuit that generates an output signal of high power that oscillates at an inherent frequency of oscillation of the oscillator circuit, the power of the output signal being higher than a power of the reference signal;
reducing a frequency of the reference signal through a differential transistor pair coupled to the injection circuit of the oscillator circuit; and
locking through a tuning circuit of the oscillator circuit coupled to the differential transistor pair a frequency of the output signal to the reduced frequency of the reference signal based on the power of the reference signal to amplify the power of the reference signal through the oscillator circuit, the frequency of the reference signal being higher than the frequency of the output signal.
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Accused Products
Abstract
A method, an apparatus and/or a system of injection locking based power amplifier is disclosed. A method includes inputting a reference signal through an injection circuit of an oscillator circuit that generates an output signal of high power that oscillates at an inherent frequency of oscillation of the oscillator circuit. The method also includes reducing a frequency of the reference signal through a differential transistor pair coupled to the injection circuit of the oscillator circuit. The method further includes locking through a tuning circuit of the oscillator circuit coupled to the differential transistor pair a frequency of the output signal to the reduced frequency of the reference signal based on the power of the reference signal to amplify the power of the reference signal through the oscillator circuit. The frequency of the reference signal is higher than the frequency of the output signal.
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Citations
20 Claims
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1. A method comprising:
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inputting a reference signal through an injection circuit of an oscillator circuit that generates an output signal of high power that oscillates at an inherent frequency of oscillation of the oscillator circuit, the power of the output signal being higher than a power of the reference signal; reducing a frequency of the reference signal through a differential transistor pair coupled to the injection circuit of the oscillator circuit; and locking through a tuning circuit of the oscillator circuit coupled to the differential transistor pair a frequency of the output signal to the reduced frequency of the reference signal based on the power of the reference signal to amplify the power of the reference signal through the oscillator circuit, the frequency of the reference signal being higher than the frequency of the output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a circuit of a previous stage of operation; an oscillator circuit coupled to a circuit of a previous stage of operation configured to generate an output signal of high power that oscillates at an inherent frequency of oscillation of the oscillator circuit, the oscillator circuit comprising; an injection circuit of the oscillator circuit generating the output signal configured to receive a reference signal from the circuit of the previous stage as an input to the injection locked oscillator circuit, the power of the output signal being higher than a power of the reference signal; a differential transistor pair coupled to the injection circuit of the oscillator circuit configured to reduce a frequency of the reference signal; and a tuning circuit of the oscillator circuit coupled to the differential transistor pair configured to lock through a frequency of the output signal to the reduced frequency of the reference signal based on the power of the reference signal to amplify the power of the reference signal through the oscillator circuit, the frequency of the reference signal being higher than the frequency of the output signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method comprising:
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inputting a reference signal through an injection circuit of an oscillator circuit that generates an output signal of high power that oscillates at an inherent frequency of oscillation of the oscillator circuit, the power of the output signal being higher than a power of the reference signal; reducing a frequency of the reference signal through a differential transistor pair coupled to the injection circuit of the oscillator circuit; locking through a tuning circuit of the oscillator circuit coupled to the differential transistor pair a frequency of the output signal to the reduced frequency of the reference signal based on the power of the reference signal to amplify the power of the reference signal through the oscillator circuit, the frequency of the reference signal being higher than the frequency of the output signal; and delivering the output signal to a load coupled to an output of the oscillator circuit, wherein the power of the output signal is based on a difference between a power of the output signal and the power of the reference signal required to maintain the locking of the reduced frequency of the reference signal to the frequency of the output signal. - View Dependent Claims (20)
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Specification