Balun Electrical Model - RF Cafe Forums
Post subject: balun electrical model Posted: Wed Sep
12, 2007 8:31 am
Joined: Wed Sep 12,
2007 8:04 am
I'm searching for an electrical model
for a balun (type anaren BD2425J50100A00, a 1 to 1 RF transformer
working at 2.45GHz)
- not a S3P parameters but a model with
mutual inductance, capacitors and resistors - like a P-spice model
and how can i proceed to find components value ?
for your help.
Posted: Wed Sep 12, 2007 2:50 pm
Mon Jun 27, 2005 2:02 pm
I don't think that what you are looking for is available, as this
is a passive RF device. The only interesting information of a Balun
to my humble opinion are the S-parameters which you only need to
model this device in terms of return losses and insertion losses.
As this is a passive and not active device there are no
junction capacitances or inductances which are used in Spice model.
What would you like to know: The capacitance and inductance
of the transmission lines of which the Balun is made of?
Post subject: Posted: Thu Sep 13, 2007
Joined: Wed Sep 12, 2007 8:04
I already have the S-parameters of the balun
but i would like to simulate (in term of current and power) the
output of my silicium with the output matching network (on my board).
OK it's a passive device and so the model of a balun should
be equivalent to a network composed by 2 coupled inductors, 1 resistor
, 1 capacitor(or more) ... that's what i would like to find.
Post subject: Posted:
Fri Sep 14, 2007 2:57 am
May 14, 2006 8:53 pm
have s-parameters, you could apply these to your model. And fit
the values to match the response.
Mutually coupled inductors,
with series resistance (for line loss) and coupling capacitor (for
line coupling) would be a start.
Post subject: Posted: Tue Sep 25, 2007 3:08 am
Joined: Tue Mar 15, 2005 11:43 pm
To add the comments above, I believe that
Microwave simulator ,e.g. Microwave office has the ideal model of
the Balun, which you can modify the parameters to match the available
And if I am not wrong, this model will enable
you to simulate nonlinear analysis (current and power).
balun practical examplePosted: Sat Nov 24, 2007 3:37 am
Joined: Fri Nov 23, 2007 11:59 am
I would like to use this thread
and ask where I can find a good practical design example of a balun
for L band.