混频器原理

Audrey2010

　　AMixerisananaloguedevicethatcanmultiplytwosignalstogetherandalsoprovidesthedifferenceofthetwosignals.Theyarecomposedofanon-lineardevice(adiodeoratransistor)andpassivecouplersdevicestoinjecttheinputmixingsignalsintothenon-lineardevicethatwillperformthemixing.Currenttechnologystate-of-the-artinmixerrealizationshowsthatthebandwidthofmixersarelimitedbythepassivedevicesandnotbythediodeortransistors,whichhavebandwidthsexceedingtherequirements

Audrey2010

A Mixer is an analogue device that can multiply two signals together and also provides the difference of the two signals. They are composed of a non-linear device (a diode or a transistor) and passive couplers devices to inject the input mixing signals into the non-linear device that will perform the mixing. Current technology state-of-the-art in mixer realization shows that the bandwidth of mixers are limited by the passive devices and not by the diode or transistors, which have bandwidths exceeding the requirements
【文件名】:1038@52RD_Mixer_Basics.rar
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