The method of adjustment and device of inductance capacitance parallel resonance chamber resonant frequency
The method of adjustment and device of inductance capacitance parallel resonance chamber resonant frequency
 CN 103,166,634 B
 Filed: 12/09/2011
 Issued: 08/11/2017
 Est. Priority Date: 12/09/2011
 Status: Active Grant
First Claim
1. a kind of method of adjustment of inductance capacitance parallel resonance chamber resonant frequency, it is characterised in that including voltagecontrolled to inductance capacitanceThe resonant frequency of first inductance capacitance parallel resonance chamber of oscillator is calibrated；
 Obtain frequency control parameters of the first inductance capacitance parallel resonance chamber under current resonant frequency；
According to the frequency control parameters by the resonant frequency of the second inductance capacitance parallel resonance chamber of circuit module adjust toThe gap of its frequency input signal is within preset value, the second inductance capacitance parallel resonance chamber and first inductance capacitanceParallel resonance chamber has identical control rule；
It is described that there is identical control rule to include：
The second inductance capacitance parallel resonanceThe switched capacitor array of the switched capacitor array of chamber and the first inductance capacitance parallel resonance chamber has identical frequency tuningThe digit of scope, coded system and control bit；
Or the switched capacitor array of the second inductance capacitance parallel resonance chamber be byThe switched capacitor array of the first inductance capacitance parallel resonance chamber is zoomed in and out according to preset ratio and obtained.
Chinese PRB Reexamination
Abstract
The present invention discloses the method for adjustment and device of a kind of inductance capacitance parallel resonance chamber resonant frequency, and this method includes calibrating the resonant frequency of the first inductance capacitance parallel resonance chamber of LC voltage controlled oscillator；Obtain frequency control parameters of the first inductance capacitance parallel resonance chamber under current resonant frequency；The resonant frequency of the second inductance capacitance parallel resonance chamber of circuit module is adjusted to the gap with its frequency input signal within preset value according to the frequency control parameters, the second inductance capacitance parallel resonance chamber has identical control rule with the first inductance capacitance parallel resonance chamber.There is provided a kind of method of adjustment of more perfect inductance capacitance parallel resonance chamber resonant frequency and device by above technical scheme by the present invention.
10 Claims

1. a kind of method of adjustment of inductance capacitance parallel resonance chamber resonant frequency, it is characterised in that including voltagecontrolled to inductance capacitanceThe resonant frequency of first inductance capacitance parallel resonance chamber of oscillator is calibrated；

Obtain frequency control parameters of the first inductance capacitance parallel resonance chamber under current resonant frequency； According to the frequency control parameters by the resonant frequency of the second inductance capacitance parallel resonance chamber of circuit module adjust toThe gap of its frequency input signal is within preset value, the second inductance capacitance parallel resonance chamber and first inductance capacitanceParallel resonance chamber has identical control rule；
It is described that there is identical control rule to include：
The second inductance capacitance parallel resonanceThe switched capacitor array of the switched capacitor array of chamber and the first inductance capacitance parallel resonance chamber has identical frequency tuningThe digit of scope, coded system and control bit；
Or the switched capacitor array of the second inductance capacitance parallel resonance chamber be byThe switched capacitor array of the first inductance capacitance parallel resonance chamber is zoomed in and out according to preset ratio and obtained.


2. the method as described in claim 1, it is characterised in that according to the frequency control parameters by second inductance capacitanceThe resonant frequency of parallel resonance chamber is adjusted to the gap with its frequency input signal：
 According to the frequencyRate control parameter and design variables by the resonant frequency of the second inductance capacitance parallel resonance chamber adjust to its input signalThe gap of frequency is within preset value.

3. the method as described in claim 1, it is characterised in that the frequency control parameters are that first inductance capacitance is in parallelThe value of the switching capacity control word of the switched capacitor array of resonator.

4. the method as described in claim 1, it is characterised in that the switching capacity battle array of the second inductance capacitance parallel resonance chamberThe mode that arrange has identical frequency tuning range with the switched capacitor array of the first inductance capacitance parallel resonance chamber includes：
 The switch electricity of the switched capacitor array of the second inductance capacitance parallel resonance chamber and the first inductance capacitance parallel resonance chamberThe fixed capacity for holding array is identical with the ratio of variable capacitance.

5. the method as described in any one of Claims 14, it is characterised in that the circuit module be Colpitts oscillator,One or more in lownoise amplifier, frequency mixer, driving amplifier, buffer, power amplifier.

6. a kind of adjusting apparatus of inductance capacitance parallel resonance chamber resonant frequency, it is characterised in that including with the first inductance electricityHold LC voltage controlled oscillator, the circuit module with the second inductance capacitance parallel resonance chamber, Yi Jipin of parallel resonance chamberRate calibration module, the first inductance capacitance parallel resonance chamber has identical control with the second inductance capacitance parallel resonance chamberRule, wherein,
The frequency calibration module is used to calibrate the resonant frequency of the first inductance capacitance parallel resonance chamber, and exportsFrequency control parameters of the first inductance capacitance parallel resonance chamber under current resonant frequency； 
The circuit module is used for the resonance frequency by the second inductance capacitance parallel resonance chamber according to the frequency control parametersRate is adjusted to the gap with frequency input signal within preset value； It is described that there is identical control rule to include：
The switched capacitor array of the second inductance capacitance parallel resonance chamber and described theThe switched capacitor array of one inductance capacitance parallel resonance chamber has the position of identical frequency tuning range, coded system and control bitNumber；
Or the switched capacitor array of the second inductance capacitance parallel resonance chamber is to first inductance electricity according to preset ratioThe switched capacitor array of appearance parallel resonance chamber, which is zoomed in and out, to be obtained；
The frequency calibration module is specifically for exporting first electricityThe value that electrification holds the switching capacity control word of the switched capacitor array of parallel resonance chamber is used as the frequency control parameters.


7. device as claimed in claim 6, it is characterised in that the circuit module according to the FREQUENCY CONTROL specifically for joiningNumber and design variables calibrate to the resonant frequency of the second inductance capacitance parallel resonance chamber the gap with frequency input signalWithin preset value.

8. device as claimed in claims 6 or 7, it is characterised in that the circuit module is Colpitts oscillator, low noiseOne or more in amplifier, frequency mixer, driving amplifier, buffer, power amplifier.

9. device as claimed in claims 6 or 7, it is characterised in that the adjusting apparatus is radio frequency transceiver, the radio frequency is receivedHair machine includes phaselocked loop and the circuit module；
 The phaselocked loop includes the frequency calibration module and the inductance capacitance is voltagecontrolledOscillator；
The circuit module includes output buffer, lownoise amplifier, receives frequency mixer, power amplifier or launch mixedThe one or more of frequency device.
 The phaselocked loop includes the frequency calibration module and the inductance capacitance is voltagecontrolledOscillator；

10. device as claimed in claim 9, it is characterised in that when the circuit module simultaneously including the output buffer,When the lownoise amplifier, the reception frequency mixer, the power amplifier and the transmitting mixer, the inductance capacitanceVoltage controlled oscillator is connected with the output buffer, and the output buffer passes through the first frequency divider and the reception frequency mixer phaseEven, the output buffer is connected by the second frequency divider with the transmitting mixer, the reception frequency mixer and the low noiseAcoustic amplifier is connected, and the transmitting mixer is connected with the power amplifier.
Specification(s)