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The signal from SG is single-end, and can't find any balun product upto 30GHz in the market. (available?)
Pls. suggest how to convert the single-end signal to differential ones, or suggest any other solutions?
Besides those traditional methods: varactor, switch cap. Is there any good suggestion to enlarge LC VCO's tuning range? (CMOS IC design)
And how about the trade-off of your idea?
oscillator phase noise
How to measure a crystal oscillator's phase noise, which is lower than the noise floor of our spectrum analyzer, is there any method?
Someone told me there was a kind of traditional method to measure the phase noise of such high Q oscillator. What's it? Is there any...
Anh-Tuan Phan, et al, "A High Performance CMOS Direct Down Conversion Mixer For UWB System", in press, ACM 2004 Great Lakes Symposium on VLSI (GLSVLSI)
Big thx!
SS or FF
We met a very strange situation in the post-sim of modulus divider, "SS" and "FF" was able to work very well, however, "TT" failed to work, what's wrong?
need paper about fractional divider design, operate above 2.5GHz, divide by 2 or 2.5, or divide by 3 or 3.5, or divider by 4 or 4.5 ...... and so on, each is OK.
Added after 5 minutes:
may use phase switching, but I can't find material about it, Help!
I'm about to test a single active mixer of a direct conversion system (zero IF), Is there any good method to do the impedance match on "RF, LO & IF" port, in the precondition that Gain, Voltage 1dB compression point and NF would not be changed obviously, or these these specification could be...
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