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Microwave one-third frequency dividing device and method based on photonic technology

A technology of frequency division device and microwave power divider, which is applied in the field of signal processing to achieve the effect of fast tuning speed

Active Publication Date: 2022-08-05
ZHAOQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the output of photonic microwave dividers contains unsuppressed spurious frequency components, such as harmonic signals
At present, there are a few photonic microwave frequency divider technologies that can suppress spurious frequency components, but they can only achieve two-thirds and four-thirds frequency division coefficients

Method used

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  • Microwave one-third frequency dividing device and method based on photonic technology
  • Microwave one-third frequency dividing device and method based on photonic technology
  • Microwave one-third frequency dividing device and method based on photonic technology

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Embodiment

[0065] like figure 1 As shown, the present invention, a microwave one-third frequency dividing device based on photonic technology, includes sequentially connected light source 1, DPMZM2, optical bandpass filter 3, MZM4, photodetector 5, low noise amplifier 6, microwave bandpass Filter 7 and microwave power divider 8, wherein MZM, photodetector, low noise amplifier, microwave bandpass filter and microwave power divider form a photoelectric oscillation ring;

[0066] The light source, the DPMZM, the optical bandpass filter, the MZM and the photodetector are connected by an optical fiber; the photodetector, the low noise amplifier, the microwave bandpass filter and the microwave power divider are connected by a radio frequency cable; the microwave signal of the DPMZM The input and the microwave signal input of the MZM are connected by a radio frequency cable;

[0067] The light source is used to generate and output an optical carrier, which is a laser light source, which genera...

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Abstract

The invention discloses a microwave one-third frequency dividing device and method based on photonic technology. The device comprises sequentially connected light sources, DPMZMs, optical bandpass filters, MZMs, photodetectors, low noise amplifiers, microwave bandpass filters and Microwave power divider, in which MZM, photodetector, low noise amplifier, microwave bandpass filter and microwave power divider form an optoelectronic oscillation ring; the light source, DPMZM, optical bandpass filter, MZM and photodetector are connected by optical fibers; The photodetector and the microwave power divider are connected by a radio frequency cable; the microwave signal input of the DPMZM and the microwave signal input of the MZM are connected by a radio frequency cable. The invention realizes a one-third frequency divider of photon microwave with large broadband and no spurious frequency component output.

Description

technical field [0001] The invention belongs to the technical field of signal processing, and in particular relates to a microwave one-third frequency dividing device and method based on photonic technology. Background technique [0002] Microwave photonic signal processing is an important part of microwave photonics, which has a wide range of applications in the fields of communication and national defense. One of the functions of microwave photonic signal processing is frequency division of microwave photonic signals, which is widely used in radar and mobile communications. The traditional frequency division of microwave signals is usually carried out in the electrical domain. Due to the well-known bottlenecks in the electrical domain, implementing analog signal processing directly in the electrical domain will suffer from limited operating bandwidth, slow tuning speed, and poor tunability. [0003] Due to the inherent advantageous properties of photonic technology, such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S1/00
CPCH01S1/00
Inventor 王琳陈敬旭陈凯荣王旭东张钰冯新焕姚建平张杰君曹元吴幸雷刘文兵张军
Owner ZHAOQING UNIV