Christopher MarkiComments about your comments:1. Thanks for you link to our tuaiortl, we are very happy that people find it useful. We are always writing new mixer application notes, make sure to check markimicrowave.com to stay up to date.2. Phase noise is an important topic, and poorly understand by most people. I will be addressing this in the future. A very common mixer type people buy for phase noise measurements is the Marki M8 mixer.3. The measure in a 50Ohm system commandment is important for the same reason commandment #2 is important; failure to resistively terminate all IMD tones can result in very surprising behavior because reactive (i.e. reflective) loads can cause spurs to remix.4. People will always attempt to simulate mixers, it is inevitable in this era. In my experience, mixer diodes are not necessarily easier to simulate than, say, FET mixers. For example, I have yet to successfully simulate a Marki T3 mixer. The high two-tone performance of the T3 (> +35 dBm), was not predicted accurately using the harmonic balance engine. After lots of debugging, I eventually decided that it was a waste of time to tweek the simulation and chose, instead, to simply build the mixer and measure it. Sometimes old fashioned is a GOOD thing.CheersChristopher
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