Tesla,
Poynting vectors in conductors are perpendicular to the conductor surface
and point into the conductor. I added plots and explanation for that on
slides 16 and 17 at
http://www.simberian.com/AppNotes/MicrostripCurrents_2015_01.pdf. Waves
inside the conductors are attenuating toward the center of the conductor
(Ohm's law + Maxwell's equations), while quasi-TEM wave outside of the
conductors propagates along the direction of the transmission line. This
produces the current reverse effect at some distance from the surface and
also observable as the conductor internal inductive impedance.
Thanks everyone who provided feedback off-line. I added a few slides with
plots for electric and magnetic fields, displacement current and power flow
and illustrations on how short-circuited slot line formed by cut in plane
creates open-circuit condition in the microstrip line.
Best regards,
Yuriy
Yuriy Shlepnev, Ph.D.
President, Simberian Inc.
3030 S Torrey Pines Dr. Las Vegas, NV 89146, USA
Office +1-702-876-2882; Fax +1-702-482-7903
Cell +1-206-409-2368; Virtual +1-408-627-7706
Skype: shlepnev
www.simberian.com
Simbeor - Accurate, Fast, Easy and Affordable Electromagnetic Signal
Integrity Software
2010 and 2011 DesignVision Award Winner
-----Original Message-----
From: Tesla [mailto:emcesd@xxxxxxx]
Sent: Tuesday, June 9, 2015 2:04 AM
To: shlepnev@xxxxxxxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Subject: Re:[SI-LIST] currents on microstrip line
Hi Yuriy
Very helpful and funny app note.
BTW, for the conductor loss in microstrip. Is there a poynting vector moving
in the TEM direction inside the copper strip?
Thanks and regards.
Tesla
At 2015-06-06 01:36:01, "Yuriy Shlepnev" <shlepnev@xxxxxxxxxxxxx> wrote:
Hello Everyone,
I have just uploaded some results of computation and visualization of
currents on simple microstrip line - see app note #2015_01 at
http://www.simberian.com/AppNotes.php
The views are not perfect yet, but I learned a couple of things from
that experiment and it may be even entertaining to see it on Friday :-)
I will appreciate any feedback.
Best regards,
Yuriy
Yuriy Shlepnev, Ph.D.
President, Simberian Inc.
3030 S Torrey Pines Dr. Las Vegas, NV 89146, USA Office
+1-702-876-2882; Fax +1-702-482-7903 Cell +1-206-409-2368; Virtual
+1-408-627-7706
Skype: shlepnev
www.simberian.com
Simbeor - Accurate, Fast, Easy and Affordable Electromagnetic Signal
Integrity Software
2010 and 2011 DesignVision Award Winner
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