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About RF receiver I/Q modulation/demodulation (Read 201 times)
carl_chao
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About RF receiver I/Q modulation/demodulation
May 19th, 2017, 12:45pm
 
Hi all,

I know that I/Q modulation is for cancelling mirror images, but is I/Q modulation needed under all circumstances? For example, for a direct-conversion RF receiver using FMCW, is I/Q modulation necessary? Why? Also, to get deeper knowledge on this topic, do you have a reference to recommend?

Thank you very much!

CC
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deba
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Re: About RF receiver I/Q modulation/demodulation
Reply #1 - May 29th, 2017, 5:32am
 
If you don't care about integrating RF front end on an IC, and ok with using SAW filters. Yes you can go without doing I/Q modulation.
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