Copyright: 1996 - 2024
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while tying up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
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My Hobby Website:
gaussian filter design - RF Cafe Forums
RF Cafe Forums closed its virtual doors in 2012 mainly due to other social media
platforms dominating public commenting venues. RF Cafe Forums began sometime around
August of 2003 and was quite well-attended for many years. By 2010, Facebook and
Twitter were overwhelmingly dominating online personal interaction, and RF Cafe
Forums activity dropped off precipitously. If the folks at
phpBB would release a version with integrated
sign-in from the major social media platforms, I would resurrect the RF Cafe Forums,
but until then it is probably not worth the effort. Regardless, there are still
lots of great posts in the archive that ware worth looking at.
Below are the old forum threads, including responses to the original posts.
|-- Amateur Radio
Gripes & Humor
-- CAE, CAD, &
Test & Measurement
Post subject: gaussian filter design
Fri Apr 22, 2005 4:35 am
Joined: Sat Feb
26, 2005 5:24 pm
Location: Lille, FRANCE
I'm working on modelling a system that include a gaussian low pass
filter on litterature on the net i can find information about the waveform
of the filter but i can't find nothing about the formulas to determine
the L,C and R values. Does someone can help me or knows a website with
this information ?
Unread postPosted: Fri Apr 22, 2005
If you need a design of a filter, there is a program
on the website:http://tonnesoftware.com/. called ELSIE. You can put
in your parameters ( stop band, passband etc) and it will spit out the
values for the filter.
Unread postPosted: Tue Apr 26, 2005 1:16 am
Joined: Sat Feb 26, 2005 5:24 pm
Thanks it's a very useful tool!!!
Unread postPosted: Wed May 04, 2005 11:22 pm
Joined: Sun Aug 03, 2003 2:02 pm
Location: Erie, PA
After reading of your
need for the Gaussian prototype values, I did a search for them and
could not locate tables for the Gaussian filter. So, I used a filter
design program and set the frequency for 1/(2*pi) and the source/load
terminations for 1 ohm and came up with a table of values for order
3 through 10. If you still need them, you can find them here:
https://www.rfcafe.com/references/electr ... values.htm
While I was at it, I updated the Chebyshev tables to include even-order
filter values. A lot of tables only supply odd-order values, because
the insertion loss of a Chebyshev at DC (0 Hz) is equal to the ripple
value rather than 0 dB.
- Kirt Blattenberger :smt024