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High-power high-frequency microwave field intensity sensing method and device

A high-frequency microwave and sensing device technology, applied in the direction of electromagnetic field characteristics, can solve problems such as high cost and complex system equipment, and achieve the effects of reducing bandwidth requirements, eliminating measurement inaccuracies, and large microwave damage thresholds

Active Publication Date: 2022-07-08
杭州微纳智感光电科技有限公司
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that there are problems of high cost and complex system equipment when detecting high-power high-frequency space microwave signals, and a single sideband frequency conversion amplification system based on optical fiber stimulated Brillouin scattering effect is provided. Power high-frequency microwave field strength sensing method and device

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  • High-power high-frequency microwave field intensity sensing method and device
  • High-power high-frequency microwave field intensity sensing method and device
  • High-power high-frequency microwave field intensity sensing method and device

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Embodiment Construction

[0061] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the following implementation. example.

[0062] Provide a high-power high-frequency microwave field strength sensing device, such as figure 1 As shown, the device includes:

[0063] Laser emission module 10 , optical local oscillator module 20 , adjustable pump module 30 , microwave optical amplification module 40 , optical electric field sensing probe 50 , light receiving frequency conversion module 60 , microwave power detection module 70 and data acquisition processing and display module 80 ;

[0064] The laser emission module 10 is respectively connected with the optical local oscillator module 20 and the tunable pump module 30 through an optical flang...

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Abstract

The invention discloses a single-sideband frequency conversion amplification high-power high-frequency microwave field intensity sensing method and device based on a stimulated Brillouin scattering effect. The invention aims to solve the problems of high cost and large system size caused by the adoption of a multi-antenna mode due to narrow frequency band coverage of a single antenna when a high-power high-frequency space microwave signal is detected by adopting an electrical microwave field intensity sensing probe in the prior art. The device comprises a laser emission module, an optical local oscillator module, an adjustable pumping module, a microwave optical amplification module, an optical electric field sensing probe, an optical receiving frequency conversion module, a microwave power detection module and a data acquisition processing and display module. Low-noise amplification of signal light to be measured is realized by using a stimulated Brillouin scattering amplification method, and down-conversion of the signal to be measured is realized by using an optical carrier microwave signal all-optical frequency mixing method, so that the electric field intensity of a high-frequency and high-power microwave signal can be measured by using a low-frequency detector and a low-speed data acquisition card.

Description

technical field [0001] The invention belongs to the field of optical sensing and microwave measurement, and in particular relates to a single-sideband frequency conversion amplification high-power high-frequency microwave field strength sensing method and device based on the stimulated Brillouin scattering effect. Background technique [0002] In the research of microwave technology, the measurement of the electric field strength of high-frequency (300MHz~40GHz) high-power microwave radiation is an important research content. The existing high-power and high-frequency microwave electric field intensity measurement technologies mostly use far-field electrical measurement methods, that is, the horn antenna is used to receive the microwave power in the far-field radiation area of ​​the antenna, and the microwave power is measured through coupling, attenuation and other links. The mathematical relationship between the electric field strengths can obtain the electric field streng...

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Application Information

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IPC IPC(8): G01R29/08
CPCG01R29/0885
Inventor 张保红
Owner 杭州微纳智感光电科技有限公司
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