Wideband frequency-agile frequency source

A technology of frequency agility and frequency source, applied in the field of broadband frequency agility frequency source, it can solve the problem that the frequency source cannot meet the ultra-broadband at the same time, and achieve the effect of improving the spurious index, shortening the frequency conversion time, and making up for the narrow-band low frequency.

Active Publication Date: 2017-12-15
CHENGDU PHASE LOCK ELECTRONICS TECH
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Problems solved by technology

[0005] In order to solve the problem that the existing frequency source cannot satisfy ultra-wideband, small-step, and frequency-agile at the same time, the technical problem to be solved by the present invention is to provide a broadband-agile frequency source, which obtains harmonics by continuously dividing the fundamental frequency. The method realizes the purpose of ultra-wideband, small step, and agile frequency conversion, improves the spurious index, shortens the system frequency conversion time, improves the reliability of the system, and has excellent economic benefits and application prospects

Method used

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Embodiment Construction

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0037] Such as figure 1 As shown, in order to solve the problem that the existing frequency source cannot satisfy ultra-wideband, small-step, and frequency-agile at the same time, the present invention provides a broadband-agile frequency source, including a synchronous crystal oscillator module, a base frequency module, Frequency conversion module, power calibration module and switch filter module;

[0038] The synchronous crystal oscillator module is used to provide reference signals to the baseband module, and at the same time provide internal and external synchronous reference signals;

[0039] The base frequency module is used for mixing and phase-locking the reference signal provided by the synchronous crysta...

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Abstract

The invention relates to a wideband frequency-agile frequency source. The frequency source comprises a synchronous crystal oscillation module, a fundamental frequency module, a frequency conversion module, a power calibration module, and a switch filtering module which are connected in sequence. The frequency source has the advantages that continuous frequency-dividing harmonic wave extraction is carried out on a fundamental frequency to achieve the purposes of ultra-wideband, small frequency steps and high frequency agility, stray indicators are improved, the system frequency conversion time is shortened, and the system reliability is improved.

Description

technical field [0001] The invention relates to the field of frequency source design, in particular to a broadband-agile frequency source. Background technique [0002] With the development of modern communication technology, the role of frequency sources in communication is becoming more and more important. In the RF front-end of systems such as communication radar, wireless communication, microwave test equipment, and spectrum monitoring, it is necessary to use microwave frequency sources with broadband, low spurious, and low phase noise to improve the anti-interference ability of the system and the confidentiality ability of communication. . The microwave frequency source is the heart of a microwave system, which determines the performance of the system. In the high-precision ranging radar, the microwave frequency source determines the radar distance resolution and other indicators. With the development of RF and microwave test equipment such as signal sources, spectru...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03L7/18
CPCH03L7/18Y02D30/70
Inventor 段麒麟胡罗林杨高宗刘建母国亮舒国强
Owner CHENGDU PHASE LOCK ELECTRONICS TECH
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