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The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

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beginner
Post subject: pls help....thanx
Unread postPosted: Thu Jun 09, 2005 4:21 pm

Dear all,

I am a beginner in filter design, pls help.
I am designing a butterworth bandpass filter using capacitively coupled resonator.

i using 2 resonators,
1 coupling capacitor C12,
1 input coupling capacitor C1,
1 output coupling capacitor C2,
C1=C2

Is it the the capacitors in the two resonators same value? which is
Co- C12- C1 = Co- C12- C2 ??

If not, pls give some advices. Thanx a lot.


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beginner
Post subject:
Unread postPosted: Fri Jun 10, 2005 12:06 am

Anyone pls help me...i am near the end of the road now...pls...


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Guest
Post subject: Band-pass filter
Unread postPosted: Fri Jun 10, 2005 12:53 am

In general, the shape of the curve varies with the value of C12. Its value depends on the loaded Q of the two resonators.

More later.

Good Luck


Posted  11/12/2012

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