Bridge-T filter - RF Cafe Forums

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2bitwise
Post subject: Bridge-T filter Posted: Tue Mar 06, 2007 2:51 pm

Lieutenant

Joined: Tue Mar 06, 2007 2:40 pm
Posts: 2
I need some basic design information on RF bridge-T trap filters. (equations, sample circuits)

I need a narrow, deep notch at VHF. I built series shunt traps but the -3db points were too wide. Good notch depth, though.

Also, to cascade traps, is there a low loss coupling method other than 1/4 wave coax sections?

Posted 11/12/2012