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The Minimum Frequency term comes from Noise Figure behavior of the FETs ( or its' variants) due to its nature.The transistors have normally no low frequency limit so they work from DC to Ft but Low frequency Noise of the FETs does not permit them practically to use below certain frequency because of their bad Low Frequency Noise characteristics.Hello!
What does minimum frequency mean in a transistor datasheet? Does it mean it cannot be used under that frequency? I have never heard of such a thing.
Last sentence of the description on the first page: "in the 450 MHz to 10 GHz frequency range". I personally never heard of such a concept as minimum frequency, but I had some trouble with an up-converting mixer simulation and had a mini heart attack that my IF frequency is too low for it to work. But if you guys haven't heard of anything like this, then I trouble-shoot elsewhere.
Thank you very very much!!