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A microwave source and its control method

A microwave source and one-way technology, applied in the microwave field, can solve the problems of low cost, easy to be affected by temperature and pressure, and high cost, and achieve the effects of low cost, spurious suppression, and simple optical path adjustment

Active Publication Date: 2021-02-09
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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  • Description
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  • Application Information

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Problems solved by technology

[0008] The use of optical fiber as an optical energy storage device is easily affected by temperature and pressure, which affects the performance of the whole machine and the frequency stability of the output microwave signal; while the optical energy storage device with a micro-nano structure is complex to process and expensive, and the laser and micro-nano Structural coupling regulation complex
[0009] Therefore, for the way to obtain the microwave source, the problems that need to be solved urgently are: long continuous operation time, low cost, simple optical path structure, and can achieve high stability and low phase noise index

Method used

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  • A microwave source and its control method
  • A microwave source and its control method
  • A microwave source and its control method

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Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0035] The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0036] figure 1 It is a schematic diagram of an embodiment of the microwave source of the present application.

[0037] The embodiment of the present application provides a micro...

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Abstract

The invention discloses a microwave source and a control method thereof. The microwave source comprises a laser and a loop. The loop comprises a modulation unit, a beam splitting unit, a fiber array,a beam combining unit, a light detector and an amplification unit. The modulation unit modulates the laser signal into a laser signal. The beam splitting unit divides the laser signal into N channelsof light splitting signals with the same frequency. The fiber array converts the N channels of light splitting signals into N channels of light signals with different light paths. The beam combining unit combines the N channels of light signals into one channel of total light signal. The light detector converts the total light signal into an electric signal. The amplification unit is used for amplifying the electric signal to be divided into two channels, wherein one channel of the electric signal is sent to the modulation unit and the other change of the electric signal is outputted. The stray of the microwave signal can be greatly suppressed and the high-quality microwave source with low phase noise can be obtained.

Description

technical field [0001] The present application relates to the field of microwave technology, in particular to a microwave source and a control method thereof. Background technique [0002] Microwave frequency sources with low phase noise and high stability are widely used in radar, communication measurement and other fields, and are the core components of modern electronic devices. [0003] There are generally three ways to obtain microwave sources: [0004] One is the standard crystal oscillator frequency multiplication method. This method is currently the most mature method, but the phase noise index and stability index are poor. [0005] The second is to use the low loss of the medium to design a high-Q dielectric resonator, construct a positive feedback amplifier circuit, and control the phase and amplitude to improve the stability of the output signal. This method has extremely high stability index and phase noise index, but the volume and weight of the equipment are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S1/00
CPCH01S1/005
Inventor 陈海波杨仁福
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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