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Microwave signal source and method for producing microwave signal

A microwave signal source and microwave signal technology, which is applied in the direction of automatic power control and electrical components, can solve the problems of partial fixed phase noise and the inability to realize multi-point frequency down-modulation, etc., and achieve low phase noise, accuracy and spectral purity High and stable effect

Inactive Publication Date: 2013-09-11
中国人民解放军95989部队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a microwave signal generation method to solve the problem that the general microwave signal generation method in production practice cannot realize multi-point frequency down-regulation, fixed frequency offset and low phase noise

Method used

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  • Microwave signal source and method for producing microwave signal
  • Microwave signal source and method for producing microwave signal

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0052] refer to figure 1 , which shows a structural block diagram of Embodiment 1 of a microwave signal source of the present application, which may include:

[0053] High stability crystal oscillator 101, used to generate multiple frequency reference signals;

[0054] In this embodiment, a low-frequency (100 MHz) high-stability, low-phase-noise crystal oscillator (TCXO) can be used to generate multiple frequency reference signals, or a TCXO can be used to generate a frequency reference signal and output in multiple channels.

[0055] The signal output component 102 is used to generate a frequency modulation signal based on the multi-channel frequency reference signal, an X-band phase-locked signal and an L-band point frequency signal;

[0056] Specifically, the frequency reference signal is a reference signal commonly used by microwave signal sources to generate microwave signals with required parameters. Based on the frequency reference signal, corresponding transformation ...

Embodiment 2

[0063] This application also discloses Embodiment 2 of a microwave signal source, which may specifically include:

[0064] High stability crystal oscillator, used to generate multiple frequency reference signals;

[0065] In practice, a low-frequency (100MHz) high-stability, low-phase-noise crystal oscillator (TCXO) can be used to generate a frequency reference signal and output in multiple channels.

[0066] A signal output component is used to generate a frequency modulation signal, an X-band phase-locked signal and an L-band point frequency signal based on the multi-channel frequency reference signal;

[0067] In a preferred embodiment of the present invention, the signal output component may include the following units:

[0068] The frequency modulation phase-locked loop unit S201 is used to generate a frequency modulation signal, and phase-lock the frequency modulation signal with one of the frequency reference signals to obtain a frequency modulation signal that meets t...

Embodiment 3

[0091] refer to figure 2 , which shows a flow chart of the steps of an embodiment of a method for generating a microwave signal according to the present invention, which may include the following steps:

[0092] Step 301, generating multiple frequency reference signals;

[0093] Step 302, generating a FM signal, an X-band phase-locked signal and an L-band point frequency signal based on the multiple frequency reference signals;

[0094] In a preferred embodiment of the present invention, the step 302 may include the following sub-steps:

[0095] Sub-step S321, generating a FM signal, and phase-locking the FM signal with one of the frequency reference signals to obtain a FM signal that satisfies the specified carrier frequency and FM frequency deviation;

[0096] Sub-step S322, generating an X-band local oscillator signal, and phase-locking the X-band local oscillator signal with one of the frequency reference signals to obtain an X-band phase-locked signal;

[0097] Sub-st...

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Abstract

The invention provides a microwave signal source and a method for producing a microwave signal. The microwave signal source comprises a highly-stable crystal oscillator, a signal output assembly, a first-stage mixing smoothing assembly and a second-stage mixing smoothing assembly, wherein the highly-stable crystal oscillator is used for producing multiple ways of frequency reference signals, the signal output assembly used for producing a frequency modulated signal, an X-band lock phase signal and an L-band dot frequency signal respectively based on the multiple ways of frequency reference signals, the first-stage mixing smoothing assembly used for mixing the frequency modulated signal with the X-band lock phase signal and outputting an X-band frequency modulated signal, and the second-stage mixing smoothing assembly used for mixing the L-band dot frequency signal with the X-band frequency modulated signal and outputting an X-band dot frequency modulated signal. According to the microwave signal source and the method for producing the microwave signal, the requirements of fixation of frequency offset of frequency modulation deviation under multipledot frequency and low phase noise can be met in production practice.

Description

technical field [0001] The invention relates to the technical field of microwave signal processing, in particular to a microwave signal source and a microwave signal generation method. Background technique [0002] The signal source is an instrument used to generate the electrical test signal of the required parameters, and has a wide range of applications in production practice and the field of science and technology. When using a signal source to generate the desired test signal, the effect of phase noise is often considered. Phase noise is the sideband extension caused by noise, which is an important parameter to characterize the short-term frequency stability of the signal and an important index to evaluate the spectral purity. As the signal source of the test system, it is also necessary to meet the flexible and changeable needs of users. Among them, the fixed frequency offset of FM is a common user requirement. It refers to the maximum offset of the FM signal frequenc...

Claims

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Application Information

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IPC IPC(8): H03L7/099H03L7/18
Inventor 柳世兴杨洪峰张勋杨明陈宝忠
Owner 中国人民解放军95989部队
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