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microwave splitter design QUESTION - RF Cafe Forums
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chukster
Post subject: microwave splitter design QUESTION Posted:
Wed Apr 23, 2008 8:14 pm
Lieutenant
Joined: Wed Apr
23, 2008 7:44 pm
Posts: 2
Location: Folsom CA
I need a (quick
and dirty) splitter design.
0.1 to 1.0 GHz
5W max input
power,
connectorized with BNC.
I am thinking of going with
a Wilkinson configuration.
Is there a quick and easy solution
for this? Such as an online Wilkinson calculator?
I investigated
using an SMT device and mounting it on a PCB, but they're not rated
any higher than 2W.
Any comments will be appreciated.
Top
imodelit_moderator
Post subject: Posted: Thu
Apr 24, 2008 2:36 am
Captain
Joined: Wed Jun 20,
2007 3:01 am
Posts: 22
Dear chukster,
For online Wilkinson
calculator; http://www.imodelit.com/ViewDetails.aspx?AID=96
Best Regards,
imodelit Moderator
Top
chukster
Post subject: Posted: Thu Apr 24, 2008 8:14 pm
Lieutenant
Joined: Wed Apr 23, 2008 7:44 pm
Posts: 2
Location: Folsom
CA
OK
now from there how do I translate those numbers into
hard values?
such as: "L" is the inductor, I guess. And the
unit of measure is "m" (meters?)
how do I get that in microHenrys?
Any responses are appreciated!
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imodelit_moderator
Post subject: Posted: Sat Apr 26, 2008 2:56 pm
Captain
Joined: Wed Jun 20, 2007 3:01 am
Posts: 22
Hi chukster,
Well, if you are satisfied with divider's behavior, you can
convert from the electrical parameters into physical parameters, as
Zo=sqrt(Eeff)/(Co*C), where Co is speed of light and C is the capacitance
per unit length. Then calculate the line inductance as L=(Zo^2)*C (inductance
per unit length). Finally, multiply the calculated inductance by the
line length.
Best Regards,
imodelit Moderator
Top
mac
Post subject: splitter etc design toolPosted:
Wed May 07, 2008 8:10 am
Captain
Joined: Fri Nov
02, 2007 3:45 am
Posts: 8
Location: germany
Hi
try the
free rf tool
RFSim99
it has an integrated design tool
to
calculate all kinds of splitter, divider etc. resistive and wilkinson
-
anyway its a graet tool to do some simple
simulations in rf
and its free -
but remember your splitter must handle that power
when calculating
values especially when using resistive splitter
instead of
wilkinson design !!
_________________
regards
mac
Posted 11/12/2012
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