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
page, please do.
Below are all of the forum threads, including all
the responses to the original posts.
Post subject: MWOffice simulation of DIode Input Impedance
Unread postPosted: Thu Sep 30,
2004 2:57 am
Joined: Mon Sep 06, 2004 5:43 am
A question on using
Microwave Office. I don't have a spectrum analyzer, and would like to simulate a schottky diode (doubler) chip in
1)The manufacturer Agilent provided SPICE parameters, but is this enough?
2) And do I use
the Z parameter in linear simulation?
I also tried simulating it using an equivalent linear circuit given, but
the results were vastly different from using SPICE parameters.
What is the best way of doing it? WOuld
completely appreciate (REALLY) the help.
Post subject: Non Linear
Unread postPosted: Thu Sep 30, 2004 7:51 am
Since a diode doubler is highly non-linear you should use the
spice model for your simulations. You then woud then wan tto use a harmonic balance simulation to determine the
impedance. The linear Z-parameters won't help unless you know that they were measured at large signal at the same
operating point. The spice model is your best bet.
Post subject: more
Unread postPosted: Thu Sep 30, 2004 8:12 pm
Joined: Mon Sep 06, 2004
Thank you for the tips, but im really slow at this. DO I select the
Z comp parameter
WHy does this option onlygive me the magnitude.
appreciate the help!