Hello All.
I wanted to throw in my two cents:
While a Spiraled trace to simulate an inductor might be a desirable
accomplishment, I try to convince engineers to stay away from this type of
design. I call it Voodoo design. Unless the trace is designed first by a
very powerful tool that takes into account three dimensional design, the
probability of obtaining a coil with any good characteristics is slim and
inconsistent. For edge to edge coupling to be effective coupling the traces
would have to be closer than 7 mils apart. Then there is "Q" factor for
this inductor, meaning it will be a very poor Quality inductor. I
personally think and would suggest finding a real component to design in.
Your design will be more reproducible and consistent from board to board,
because of a number of problems inherent to varied inconsistencies of a
fibers in any board. There are a whole lot of reasons why I would stay
away from voodoo design. Sorry Bill, I don't mean to insult you, are the
only TOP GUN registered on this list. But I wouldn't attempt it unless I
could fully simulate it at my desired frequency, with prepreg thickness,
with known prepreg material, fiber density, dielectric constant, gnd plane
underneath, relative humidity, and it goes on.
I will wait for Brad V's Comments on this because he had mentioned his
company simulates some of this stuff, right?
Mike Reagan
EDSI
Frederick Md
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* To post a message: mailto:[EMAIL PROTECTED]
*
* To leave this list visit:
* http://www.techservinc.com/protelusers/subscrib.html
* - or email -
* mailto:[EMAIL PROTECTED]?body=leave%20proteledaforum
*
* Contact the list manager:
* mailto:[EMAIL PROTECTED]
*
* Browse or Search previous postings:
* http://www.mail-archive.com/[email protected]
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
