简介：Inthispaperthemodelling,analysisandoptimizationofmillimeterwaveoscillatorsareinvestigatedbyusingtheafrequency-domainharmonicbalancetechnique(FDHB),wheretheexternal-circuitimpedanceslookingoutsidefromtheactivedevicearecalculatedwithacombinedtechniqueofmodesexpansion,Galerkin,andcollocationmethods.Theoptimizationresultsareinagreementwiththeexperimentalones,whichshowthereliabilityofthepresentedmodelandoptimization.

简介：Thephaseandfrequencylockingofmicrowave,millimeterwavepowercombiningwereanalysedandsummarizedinanall-roundway.Themaster/slavephaselockingofcavityoscillators,thepeerphaselockingofmutuallycoupledoscillators,andthepeerphaselockingofring-connectedmultipleoscillatorswereinvestigated.Theresultsofnumericalcalculations,andtherelationsofphasetophaselockingmodelandoscillatorparametersweregiven.Andthecavityandspacepowercombiningaspectsformicrowaveandmillimeterwavewerepresented.

简介：毫米波浪radio-over-fiber技术为在毫米波浪信号的无线通讯system.Optical产生是的下一代提供无线宽带服务表明潜力毫米波浪的光产生的一些方法的优点和缺点表明的毫米波浪radio-over-fibersystem.The的最重要的技术之一是discussed.Then光毫米波浪信号传播性能described.Finally，毫米的概述

简介：在这份报纸，一个新毫米波浪(公里波浪)波长部门multiplexing(WDM)系统基于radio-over-fiber(ROF)，技术被建议。在这条途径，多波长光来源被supercontinuum(SC)获得技术，和公里波浪信号被使用光外差获得方法。我们试验性地为6-WDM隧道表明光搬运人的产生，由采用光heterodyne技术获得40个GHz公里波浪信号，并且成功地完成在在在G.652纤维的25km的距离上的WDM隧道的2.5Gbit/s的低误差率传动。试验性的结果证实建议答案可行、合算。

简介：Anewmethodisproposedtogeneratemicrowaveandmillimeter-wavebyusingpolarizationscramblerandpolarizationmaintainingfiber(PMF),whichisbasedonthecouplingandtheinteractionbetweenthetwopolarizationsoftheinitialnon-chirpGaussianopticalpulseinPMF.Theexpressionsofthemicrowaveandmillimeter-wavearederivedbycouple-modetheory.Moreover,thefeasibilityisanalyzedsimulatedly.Atlast,0-120GHzmicrowaveandmillimeter-wavecanbeproducedbyadjustingsystemparameterorinputpulseduration.Theprojectisofgreatsimplicity,stabilityandhighexportefficiency.

简介：Numericallyanalyzedisthetransmissionperformanceoftheopticalmillimeter(mm)-wavegeneratedbyfrequencyup-conversionviaaphasemodulatoralongthedispersivefiber.60GHzmm-wavesub-carrier(SC)signalscanbeobtainedafterfibertransmission,simultaneously,thephase-modulatedsignalscanbeconvertedtotheintensity-modulatedones.Thenumericalresultsshowthattheopticalmm-waveatfadingloopshasbetterperformance,andtheeyediagramstillkeepsopenwhenopticalmm-wavesignalistransmittedover98km.

简介：Thispaperdesignsa3mmradiometerandvalidatewithexperimentsbasedontheprincipleofpassivemillimeterwave(PMMW)imaging.Thepoorspatialresolution,whichislimitedbyantennasize,shouldbeimprovedbypostdataprocessing.Aconjugate-gradient(CG)algorithmisadoptedtocircumventthisdrawback.Simulationandrealdatacollectedinlaboratoryenvironmentaregiven,andtheresultsshowthattheCGalgorithmimprovesthespatialresolutionandconvergentrate.Further,itcanreducetheringingeffectswhicharecausedbyregularizingtheimagerestoration.Thus,theCGalgorithmiseasilyimplementedforPMMWimaging.

简介：同时由使用一个单个双电极的Mach-Zehnder调节的人(MZM)产生并且播送第三封产生电信(3G)和毫米波浪(MMW)信号的一个新奇radio-over-fiber(ROF)计划被建议。没有明显的非线性，ROF系统导致。由采用这种模拟ROF信号传播技术，高度透明的纤维无线的集中网络能被认识到，它为多标准是理想的无线系统操作。