Damien Post subject: balun electrical model Posted: Wed Sep 12,
2007 8:31 am Lieutenant Joined: Wed Sep 12, 2007
8:04 am Posts: 2 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 ? Thank you for your help.
Top IR Post subject: Posted: Wed Sep 12, 2007
2:50 pm Site Admin Joined: Mon Jun 27, 2005 2:02
pm Posts: 373 Location: Germany 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?
Top Damien Post subject: Posted: Thu Sep 13, 2007
3:23 am Lieutenant Joined: Wed Sep 12, 2007 8:04
am Posts: 2 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. Damien.
Top languer Post subject: Posted: Fri Sep 14, 2007 2:57
am Captain Joined: Sun May 14, 2006 8:53 pm Posts:
17 Location: Earth If you 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.
Top Jeanalmira Post subject: Posted: Tue Sep 25, 2007
3:08 am General Joined: Tue Mar 15, 2005 11:43 pm
Posts: 65 Location: Singapore Hi, 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 s-parameters. And if I am not wrong, this model
will enable you to simulate nonlinear analysis (current and power).
Regards, Jean Top eran Post subject:
balun practical examplePosted: Sat Nov 24, 2007 3:37 am Lieutenant
Joined: Fri Nov 23, 2007 11:59 am Posts: 4 Location: Israel
Hi, I would like to use this thread and ask where I can find
a good practical design example of a balun for L band. Thanks,
Eran. Posted 11/12/2012
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