•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<
Job Board
About RF Cafe™
Copyright 1999-2015

pls help....thanx - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.

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,

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.


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...


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
Custom Search
More than 10,000 searchable pages indexed.

Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem!
(Seize the Day!)

5th MOB: My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website