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Increasing RF-LO isolation of single ended Gilbert mixer?

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jimway

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how to increase the RF-LO isolation of the single ended Gilbert mixer????
 

victoriya

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you can use lc tank (resonating at your rf frequency) between your ports.this can remove the lo to rf capacitors that make the feedthrough between ports.but in the case of single ended mixer it's too difficult to improwe isolation and i'm not sure this method be useful.also you can use cascode transistor between them.
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