Centimeter wave/millimeter wave ultra-wideband signal generating device

An ultra-broadband signal and generation device technology, applied in the field of microwave photonics, can solve the problems of distortion and the effect of optical fiber dispersion of ultra-broadband signals, and achieve the effect of good flexibility

Active Publication Date: 2021-10-08
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

UWB signals generated based on double-sideband up-conversion technology are susceptible to dispersion in optical fibers and will cause distortion during long-distance transmission

Method used

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  • Centimeter wave/millimeter wave ultra-wideband signal generating device
  • Centimeter wave/millimeter wave ultra-wideband signal generating device
  • Centimeter wave/millimeter wave ultra-wideband signal generating device

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Embodiment 1

[0022] The laser source is the TSL-510 tunable laser of Santec Company, the wavelength range of the laser is 1510nm~1630nm; the polarization controller is the three-ring polarization controller of Sichuan Ziguan Company; The stabilized voltage source 3 and the DC stabilized voltage source 4 are GPS-4303C from GW Instek, and the output voltage range is adjustable from 1V to 20V; the arbitrary waveform generator is M8195A from Agilent; the dual-parallel Mach-Zehnder modulator is from Photline MXIQ-LN-40 (can be driven by two electrical signals, the input ports of the two electrical signals are called drive port 1 and RF drive port 2); the microwave signal source is Agilent’s E8257D; Mach-Zehnder modulation The device is AM-20 from Oclaro; the erbium-doped fiber amplifier is EDFA-PL-NS from Mairui Optoelectronics; the tunable filter is BVF-300CL from Alnairlabs; the balanced photodetector is KG- BPR, the bandwidth is 40GHz; the spectrum analyzer is N9010A of Agilent Company, the ...

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Abstract

The invention discloses a centimeter wave/millimeter wave ultra-wideband signal generation device based on combination of a microwave photon external modulation technology and an up-conversion technology, and belongs to the technical field of microwave photonics. The device comprises a laser source, a coupler 1, a coupler 2, a polarization controller 1, a polarization controller 2, a double-parallel Mach-Zehnder modulator, a Mach-Zehnder modulator, an arbitrary waveform generator, a microwave signal source, a direct-current voltage-stabilizing source 1, a direct-current voltage-stabilizing source 2, a direct-current voltage-stabilizing source 3, a direct-current voltage-stabilizing source 4, an erbium-doped optical fiber amplifier, an adjustable optical filter, an adjustable optical delay line, a balanced photoelectric detector, a spectrum analyzer and an oscilloscope. The device can generate centimeter-wave ultra-wideband signals and millimeter-wave ultra-wideband signals, and is suitable for an indoor ultra-wideband communication system and an outdoor ultra-wideband radar system. Compared with other methods, the method for realizing the up-conversion technology based on single side band modulation has better flexibility and stability, and is more suitable for transmission of ultra-wideband signals in long-distance optical fibers.

Description

technical field [0001] The invention belongs to the technical field of microwave photonics, and in particular relates to a centimeter-wave / millimeter-wave ultra-wideband signal generating device based on microwave photon external modulation technology combined with up-conversion technology. Background technique [0002] UWB radio frequency technology is a short-distance wireless transmission technology that has the advantages of high speed, low intercept probability, anti-multipath fading, anti-jamming, and low power consumption. The Federal Communications Commission of the United States has allocated the centimeter-wave frequency band of 3.1-10.6 GHz for indoor ultra-wideband communication systems, and the millimeter-wave frequency band of 22-29 GHz for outdoor ultra-wideband radar systems, and limited the power spectral density of ultra-wideband signals to -41.3 Below GHz / MHz, this limitation is also called UWB mask, so the wireless propagation distance of UWB signals is l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/70H04B10/516H04B10/50
CPCH04B10/70H04B10/516H04B10/5165H04B10/503
Inventor 董玮都聪张歆东
Owner JILIN UNIV
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