Interstage matching for current mode
时间：03-31
整理：3721RD
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Hello I am currently working on current mode RF receiver front-end
question is do I need to conjugate match between two blocks(eg LNA - mixer)
normally for current mode, input impedance should be very small and output very large.
Do I need interstage match?(Rout=Rin)?
antenna(50ohm) - (50ohm)LNA( ?ohm ) - (?ohm)mixer(?ohm) - (?ohm)filter(!ohm)-(!ohm)output_buffer(50ohm) - ADC
and if I don't need intersatge match why do I have to match at the end of front-end block(output buffer)?
question is do I need to conjugate match between two blocks(eg LNA - mixer)
normally for current mode, input impedance should be very small and output very large.
Do I need interstage match?(Rout=Rin)?
antenna(50ohm) - (50ohm)LNA( ?ohm ) - (?ohm)mixer(?ohm) - (?ohm)filter(!ohm)-(!ohm)output_buffer(50ohm) - ADC
and if I don't need intersatge match why do I have to match at the end of front-end block(output buffer)?