Harmonic phase locking frequency source and phase locking method thereof

A frequency source, phase-locked technology, applied in the automatic control of power, electrical components, etc., to achieve the effect of low phase noise and good clutter suppression characteristics
CN102006060AInactive Publication Date: 2011-04-06SICHUAN JIUZHOU ELECTRIC GROUP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN JIUZHOU ELECTRIC GROUP
Publication Date
2011-04-06
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a harmonic phase locking frequency source which comprises a crystal oscillator, a microwave sampling phase discriminator, a loop filter and automatic capture circuit, a voltage-controlled oscillator, a coupler and a locking detection circuit. The invention also provides a phase locking method of the harmonic phase locking frequency source. The frequency source provided by the invention has the characteristics of low phase noise, better clutter suppression characteristic and the like.
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Description

technical field

[0001] The invention relates to the technical field of analog phase-locked frequency synthesis, in particular to a harmonic phase-locked frequency source and a phase-locked method thereof. Background technique

[0002] With the current development of communication and radar technology, higher and higher requirements are put forward for the phase noise and clutter suppression characteristics of the local oscillator (LO) in the system. In many cases, the traditional phase-locked frequency source can no longer meet the requirements of use, and the harmonic phase-locked frequency source has the advantages of low phase noise, high clutter suppression, low cost, etc., in most cases completely It can replace the traditional phase-locked frequency source. Contents of the invention

[0003] In view of the current development of communication and radar technology, higher and higher requirements are put forward for frequency sources. Traditional frequency sources can...

Claims

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