ADS :mixer frequency choice

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dili Neo

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Hi,

how we decide the choice of LO frequency while doing up/down conversion using a mixer..?.what is the theory behind it...

Also can u tel me hw to do IF planning using Agilent ADS 2011 version??

thanks in advance
 

If you know no theory, please read a book about mixers. There is a lot of knowledge needed to design a good mixer; commercial ones are quite expensive for a reason.
 

hi,
can u suggest me a book ,available as free online pdf, to get a hold on mixer frequency selection.
jiripolivka said:
If you know no theory, please read a book about mixers. There is a lot of knowledge needed to design a good mixer; commercial ones are quite expensive for a reason.
Click to expand...
 

I know one by Maas: MIcrowave mixers. Try Minicircuits.com, they offer white papers on mixer applications. Also, Markimicrowave.com have good mixers and instructions.
 
for a simple system，if'freq is 0.1*LO’freq,so a filter can reject image freq from RF,bur for a complex system,it maybe not appropriate.
 
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