dual frequency transformer for dualband filter..

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kamgan

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hi friends please help me to design dualfrequency transformer for dualband filter.. can we do this filter without transformer? if it is so guide me to do this plz!!
 

kamgan said:
hi friends please help me to design dualfrequency transformer for dualband filter.. can we do this filter without transformer? if it is so guide me to do this plz!!
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hi there

we need lots more info from you, you have given us nothing to go on.
what are the frequencies ?
what sort of bandwidth do you need/expect ?
what signal levels in volts or dBm ?
what is it that you want your project to actually achieve ?
is this RF or AF ?

etc etc

cheers
Dave
 

hi dave

i am doing dualband filter for RF, frequencies 1.8/5.8 GHZ using ADS.. i heard that, for the impedance matching dual frequency transformer may used but i dont know the concept behind this. is it neccesary? then how to do that? i hav done the remaining portion of this filter..
 

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