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by Harley Berman   The Nonlinear Transmission Line (NLTL) is well known as a generator of high order frequency multiples with good efficiency and ultra-low phase noise. One major [...]

In making the datasheets for the first Microlithic frequency doubler (MLD-1640), it occurred to us that not enough has been made about the difference between isolation and suppression. In mixers [...]

There are two ways to create high frequency (low phase noise) tones: use a high frequency oscillator to directly synthesize (probably optically) or use a crystal to create a low phase noise [...]

As detailed in our Mixer Basics Primer, the isolations of a mixer refer to how well a balanced mixer cancels out each of the arms inputs from the outputs of the other arms. There are three [...]