Selfmixing heterodyne system

摘要: High receiver sensitivity and narrowband coherent resolution can be achieved at millimeter submillimeter wavelengths through the process of heterodyning or intermediate frequency (IF) generation. The two frequencies, whose IF is being generated, need not very stable in phase themselves. requirement only, that they fluctuate identically phase, so their fluctuations cancel IF. This by deriving both from one same source. We have applied this twice a high resolution. At time simple, since stability sources involved does affect