EAGLE Netlist conversion

John smith · Jan 1, 2005

"mc" <mc_no_spam@uga.edu> wrote in message
news:41d36494$1@mustang.speedfactory.net...

Reportedly, spyware:
http://www.short-media.com/forum/showthread.php?s=6ab243d5de429e97f0cfb08294575f98&p=227911#post227911

"Jim Thompson" <thegreatone@example.com> wrote in message
news:fpk6t019ejnt2nvirn6kmj36223079hlu1@4ax.com...
Cleaning up my wife's computer, after a teen-age granddaughter
installed a bunch of crap, I ran across a program called "admilli
service".

(I'm beginning to wonder how I survived raising four kids the first
time around

Rather than delete something I'm unfamiliar with...

Anyone know what that is?

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

Try "spybot search and destroy" by Patrick M Kolla.
He should market it under a different name, but its ok, its freeware with a
donation request.
do a google, I forgot and cannot find their link from the program. Trust me
I use it and it is good.
my friend the hacker says its good, he uses both simultaneously, spybot and
addaware.
both work.
good luck and happy new year..........

JeffM · Jan 1, 2005

Finally Mr. Bill realized how bad thing were a few years ago
and made correcting the Windoze problems a high priority
Watt Sun

Dogmatic M$ fanboy view: I'll see it when I believe it.

Scientific realists' view: I'll believe it when I see it.

When BillG gets response times to exploits down to a week or less,
we can start talking realisticly about *Microsoft security*.

6-month delays don't impress me.
Unpatched holes that have been known for longer than a month
are simply criminal.

Charles W. Johson Jr. · Jan 2, 2005

"Jim Thompson" <thegreatone@example.com> wrote in message
news:efket05jrvbn6uad3kvtmcmbkurmmobv5v@4ax.com...

Presently all computers in the house are booting up as
"administrator".

(1) If I change this to a normal user will that prevent installations
occurring from websites?

(2) How do I accomplish this? That is, how do I maintain the "run"
permissions for already installed programs?

Thanks!

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

In Xp you can change the Admin level without re-installing simple by
creating an admin account, must have one Administrator level account. Then
sign in with the new account and change the level of the other account in
control panel/user accounts /change an account/ then select the account and
change type of account to limited.

Charles

Jim Thompson · Jan 2, 2005

On Sun, 02 Jan 2005 02:17:44 GMT, "Charles W. Johson Jr."
<qrus19@mindsprUng.com past to present> wrote:

"Jim Thompson" <thegreatone@example.com> wrote in message
news:efket05jrvbn6uad3kvtmcmbkurmmobv5v@4ax.com...
Presently all computers in the house are booting up as
"administrator".

(1) If I change this to a normal user will that prevent installations
occurring from websites?

(2) How do I accomplish this? That is, how do I maintain the "run"
permissions for already installed programs?

Thanks!

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

In Xp you can change the Admin level without re-installing simple by
creating an admin account, must have one Administrator level account. Then
sign in with the new account and change the level of the other account in
control panel/user accounts /change an account/ then select the account and
change type of account to limited.

Charles

480)460-2350 | |
| E-mail Address at Website Fax

Charles W. Johson Jr. · Jan 2, 2005

"Jim Thompson" <thegreatone@example.com> wrote in message
news:neoet0lpg6mbt0afo4ghlflma0se2e0oca@4ax.com...

On Sun, 02 Jan 2005 02:17:44 GMT, "Charles W. Johson Jr."
qrus19@mindsprUng.com past to present> wrote:

"Jim Thompson" <thegreatone@example.com> wrote in message
news:efket05jrvbn6uad3kvtmcmbkurmmobv5v@4ax.com...
Presently all computers in the house are booting up as
"administrator".

(1) If I change this to a normal user will that prevent installations
occurring from websites?

(2) How do I accomplish this? That is, how do I maintain the "run"
permissions for already installed programs?

Thanks!

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

In Xp you can change the Admin level without re-installing simple by
creating an admin account, must have one Administrator level account. Then
sign in with the new account and change the level of the other account in
control panel/user accounts /change an account/ then select the account
and
change type of account to limited.

Charles

I'm Win2K SP4 across the board.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

I think W2K is basicly the same. Add an Admintrator then reset the present
user to limited.
You'll wnat the Admin account available for things I'm sure. Most of XPs
security seems to come from the NT/W2K line.

Charles

Richard the Dreaded Liber · Jan 2, 2005

On Sun, 02 Jan 2005 17:48:03 +0000, Charles W. Johson Jr. wrote:

"Jim Thompson" <thegreatone@example.com> wrote in message
news:neoet0lpg6mbt0afo4ghlflma0se2e0oca@4ax.com...
On Sun, 02 Jan 2005 02:17:44 GMT, "Charles W. Johson Jr."
qrus19@mindsprUng.com past to present> wrote:

"Jim Thompson" <thegreatone@example.com> wrote in message
news:efket05jrvbn6uad3kvtmcmbkurmmobv5v@4ax.com...
Presently all computers in the house are booting up as
"administrator".

(1) If I change this to a normal user will that prevent installations
occurring from websites?

(2) How do I accomplish this? That is, how do I maintain the "run"
permissions for already installed programs?

Thanks!

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

In Xp you can change the Admin level without re-installing simple by
creating an admin account, must have one Administrator level account. Then
sign in with the new account and change the level of the other account in
control panel/user accounts /change an account/ then select the account
and
change type of account to limited.

Charles

I'm Win2K SP4 across the board.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

I think W2K is basicly the same. Add an Admintrator then reset the present
user to limited.
You'll wnat the Admin account available for things I'm sure. Most of XPs
security seems to come from the NT/W2K line.

I know how to fix Thompson's computer, but one of his major purposes in
life seems to be track down and plonk Rich Grise in any guise, so screw
him. Let him continue to think I'm an ignoramus as I gloat over him
getting his computer all loaded up with malware by his own stupidity.

Interestingly, the most intense bitching about me seems to come only from
the pompous, self-rigteous prigs.

Cheers!
Rich

John Stewart · Jan 3, 2005

Jim Douglas wrote:

Your right in a public place with only that application the unix brand
shines, but what about the other 80% of software in the world that is not
supported in unix?

"Chuck Harris" <cf-NO-SPAM-harris@erols.com> wrote in message
news:McqdnaSW2dJ9_EjcRVn-iQ@rcn.net...
Watson A.Name - "Watt Sun, the Dark Remover" wrote:

A guy I know does volunteer work with the Boy Scouts during the summer.
One night he let the 'boy scouts' use his computer and the next day, his
email had 206 spams, almost all of them porn.

Makes you seriously consider unplugging the kids, not the computer.

:-(

At work, I had to clean over a hundred adwares off of this one good
lookin' woman's PC, and I told her afterwards she had to stop being so
promsicuous with her PC. ;-)

And yet, you keep using 'doze. Howard County Public Libraries got tired
of having to reboot the public access internet machines several times
a day, and of having to continually remove virii, and other malware.

They converted all of the public access internet machines to linux 2 years
ago, and they haven't had a problem since. Makes one wonder when y'all
are going to get tired of cleaning up the raw sewage that leaks through
the holes in your operating system, and try something new and clean.

-Chuck

Jim- You need to reset your PC time clock.
Looks like you are a year ahead of the rest of us!! JLS

Jim Thompson · Jan 4, 2005

On Tue, 04 Jan 2005 09:08:40 -0800, Charles Edmondson
<edmondson@ieee.org> wrote:

Jim Thompson wrote:
Presently all computers in the house are booting up as
"administrator".

(1) If I change this to a normal user will that prevent installations
occurring from websites?

(2) How do I accomplish this? That is, how do I maintain the "run"
permissions for already installed programs?

Thanks!

...Jim Thompson
Hi Jim,
You can create new accounts, but be sure that your user account has at
least 'superuser' privileges, or you will have problems running PSpice.
Actually, give yourself admin privileges, but have some guest accounts
for the kids and SO (Spousal Overunit...)

--
Charlie

No one is allowed to use my PSpice machine except me ;-)

The only machines of concern are those with Internet access... my
"comms" machine, my wife's machine and two kids' playroom machines
(the latter two could actually be network-disabled, except during
maintenance).

I just want to put a stop, if it's possible, to the automated installs
that go crazy when you stumble onto a rogue site.

I'm pretty careful, yet I got zinged by some crap called "Enhanced
Search Toolbar" a few days ago. Had to buy a copy of "Scan Spyware"
to get rid of it... manual deletion per Symantec's instruction failed
to keep it from regenerating.

Ran it on my wife's machine and found *263* instances of Adware :-(

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice

480)460-2350 | |
| E-mail Address at Website Fax

Chuck Harris · Jan 4, 2005

Jim Thompson wrote:

I just want to put a stop, if it's possible, to the automated installs
that go crazy when you stumble onto a rogue site.

I'm pretty careful, yet I got zinged by some crap called "Enhanced
Search Toolbar" a few days ago. Had to buy a copy of "Scan Spyware"
to get rid of it... manual deletion per Symantec's instruction failed
to keep it from regenerating.

Ran it on my wife's machine and found *263* instances of Adware :-(

...Jim Thompson

If that's all you want, then this is truly easy. Tell your firewall
that IE and OE are forbidden to access the internet, and switch to
Mozilla.

-Chuck

Jon Elson · Jan 5, 2005

Jim Thompson wrote:

On Wed, 29 Dec 2004 18:29:43 -0800, Peter Bennett
peterbb@somewhere.invalid> wrote:

On Wed, 29 Dec 2004 18:03:39 -0700, Jim Thompson

I removed six types of adware. I'm running a full NAV scan right
now... so far 10 more "threats" :-(

Can a login for a specific user be set such that IE can't run? Or,
better yet, deny access to the Internet?

A FAR FAR better scheme is to not ever run a MicroSoft OS exposed

directly to the net, and maybe never even "barefoot", ie. exposed to
physical hardware. I run Linux on my machines directly, used to use
Netscape for a browser, now I'm using Mozilla (the underlying engine
with a few less bells and whistles that only cause trouble anyway).
For the few CAD programs that I still need Windows for, I run Win
2K under VMware, ON the Linux system! It is actually MORE reliable this
way than running Win2K on real hardware. It runs for weeks at a time,
and usually only has to be shut down when I'm tinkering with settings or
something
and need to shut down the windows environment on Linux. The Linux
system, itself,
usually stays up between power failures, ie. 60 - 120 days at a time!

I've been successfully penetrated by hackers twice, and I didn't even
have to reboot
to throw them off and research how they broke in! My kids have a Win2K
system behind a firewall and using IP masquerade, so there is no outside
path
to the machine at all (it has only a private IP address), and I didn't
give them the
administrator password, but they've STILL managed to totally trash it so
it needs
to be rebooted every hour! We used to joke that the Russians copying
our IBM 360's
set their computing effort back 10 years. Now, it is NO JOKE that Microsoft
has set US back by at least that much!

Jon

Dave VanHorn · Jan 6, 2005

Nice storm!

We're in the middle of the worst ice storm in over 20 years.

John Woodgate · Jan 6, 2005

I read in sci.electronics.design that bill.sloman@ieee.org wrote (in
<1105006094.341736.311730@c13g2000cwb.googlegroups.com&gt

about 'OT: Wild
Weather', on Thu, 6 Jan 2005:

There are more specific effects, and one possible result of global
warming would be for the Gulf Stream to turn off, which might leave most
of northern Europe covered with glaciers (as it was in the last Ice
Age).

The east coasts of North America and China weren't glaciated the last
time I looked, and they don't have the benefit of warm ocean currents.
But the climate change would be significant; New York, Madrid and Rome
are on about the same latitude, as are London, England and Goose Bay,
Labrador.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

Jim Thompson · Jan 6, 2005

On Thu, 6 Jan 2005 07:07:08 -0800, Mike <mike@nospam.com> wrote:

On Wed, 05 Jan 2005 15:13:24 -0700, Jim Thompson wrote:

See...

http://www.analog-innovations.com/Musings/Funnel.gif

...Jim Thompson

I'm not sure where the jetstream is running right now, but we're expecting
another storm here in Southern California within the next day or two. You
might have more fun this weekend.

The word here is that MORE rain is coming this afternoon :-(

We just had an earthquake half an hour ago... not to bad at my house, but
it might have been worse nearer the epicenter.

-- Mike --

480)460-2350 | |
| E-mail Address at Website Fax

Spehro Pefhany · Jan 6, 2005

On 6 Jan 2005 07:24:31 -0800, the renowned optoeng@pioneernet.net
wrote:

Look for an article by Dr. Eric Bogatin in latest Printed Circuit
Design. Don't know if it's on the web yet or not.
Paul Mathews

If it's the January issue, it's here (3.9M zip file):
http://www.pcdandm.com/pcdmag/mag/0412/0412pcdm_digital.zip

But he doesn't seem to address the issue of guard traces in that
article ("Quieting Down a Noisy Problem").

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

Jim Thompson · Jan 6, 2005

On Thu, 06 Jan 2005 11:03:45 -0500, John Stewart
<jh.stewart@sympatico.ca> wrote:

Mike wrote:

On Wed, 05 Jan 2005 15:13:24 -0700, Jim Thompson wrote:

See...

http://www.analog-innovations.com/Musings/Funnel.gif

...Jim Thompson

I'm not sure where the jetstream is running right now,

Check here-
http://www.intellicast.com/Local/USNationalStd.asp?loc=usa&seg=LocalWeather&prodgrp=SurfaceMaps&product=JetStream&prodnav=none

but we're expecting
another storm here in Southern California within the next day or two. You
might have more fun this weekend.

We just had an earthquake half an hour ago... not to bad at my house, but
it might have been worse nearer the epicenter.

-- Mike --

Yep. That SW wind that then swings east is doing a number on us...
except our drought is over... the reservoirs are overflowing into the
Salt River and there's many FEET of snow in the mountains.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice

480)460-2350 | |
| E-mail Address at Website Fax

Spehro Pefhany · Jan 6, 2005

On 6 Jan 2005 08:00:44 -0800, the renowned bill.sloman@ieee.org wrote:

Johnson and Graham's "High Speed Digital Design" (ISBN-0-13-395724-1)
talks about this in section 5.6 - Guard Traces - on pages 201-204 in my
copy.

The message is that running your traces over a solid ground plane is
the way to substantially reduces cross-talk. Adding guard traces
between acitve tracks already running over a ground plane roughly
halves the residual cross-talk, and you can halve this again by putting
lots of vias along the guard trace to tightly couple it to the ground
plane.

"Lots of vias" (actually "vias at frequent intervals") is referred back
to J.A.Coekin "High Speed Pulses Techniques" Pergamon Press, Oxford,
1975 pages 203-205 - a book that I've never seen nor heard of.

Hi, Bill:-

Okay, thanks, I've found some info in "High-Speed Circuit Board Signal
Integrity" (Thierauf) which suggests vias every 1/10 of a rise time
in the guard trace(s). An example shows crosstalk reduced by 4:1 for
the same *signal* trace spacing. References for double guard traces
("coplanar transmission line") are to (neither of which I have easy
access to at the moment):

Gopinath "Losses in Coplanar Waveguides" IEEE Trans. Microwave Theory
and Techniques, Vol. MTT-30, No. 7, July 1982, pp. 11011104.

and

Knorr "Analysis of Coupled Slots and Coplanar Strips on Dielectric
Substrate" IEEE Trans. Microwave Theory and Techniques, Vol. MTT-23,
No. 7, July 1975, p. 541.

Hope this helps. I've got a pair of text books specifically covering
microstrip, but they weren't a good investment - I could poke around in
them if you are desperate, but I don't like my chances of coming up
with anything useful.

If there's anything (simple) on the effect of the guard traces on the
characteristic impedance, I'd really appreciate having it. This isn't
picosecond stuff I'm working with.

Thanks,

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

CWatters · Jan 6, 2005

<bill.sloman@ieee.org> wrote in message
news:1105006094.341736.311730@c13g2000cwb.googlegroups.com...

Global warming means more water gets evaporated from the oceans, which
in turns leads to wilder weather.

The biggest concern at the moment seems to be a possible large and sudden
rise in sea level due to _melting_ at the poles. The resulting rise in sea
level could mean some prime real estate is under water within 80 years. Your
children better watch out where they buy a house or expect to see it's value
fall.

http://www.sciencedaily.com/releases/2002/03/020329072043.htm

Quote: The West Antarctic ice sheet is thought to be potentially unstable,
and if it collapsed sea levels around the world would rise almost 20 feet.
The melting of the larger and more stable East Antarctic ice sheet would
raise Earth's sea levels another 200 feet.

Think it won't happen?

In January 1995 around 2000 square kilometers of the Larsen Ice sheet broke
up....

http://nsidc.org/iceshelves/larsen1995/

"Two dramatic events occurred in the Larsen Ice Shelf in late January of
1995. A large iceberg (70 km by 25 km) calved from the shelf between Jason
Peninsula and Robertson Island (see map), and the northernmost part of the
shelf, north of Seal Nunataks, disintegrated. The large iceberg calving
event received the most notice in popular media coverage but such events are
part of the normal mass balance cycle for ice shelves. The northern
disintegration, on the other hand, occurred in an unprecedented manner, by
the sudden break-up of a region approximately 2000 km2 into many small
icebergs (typically 1 to 2 km or smaller). It is the more likely of the two
events to be related to climate change."

Jim Thompson · Jan 6, 2005

On Thu, 06 Jan 2005 14:05:24 -0500, John Stewart
<jh.stewart@sympatico.ca> wrote:

Jim Thompson wrote:

On Thu, 06 Jan 2005 11:03:45 -0500, John Stewart
jh.stewart@sympatico.ca> wrote:

Mike wrote:

On Wed, 05 Jan 2005 15:13:24 -0700, Jim Thompson wrote:

See...

http://www.analog-innovations.com/Musings/Funnel.gif

...Jim Thompson

I'm not sure where the jetstream is running right now,

Check here-
http://www.intellicast.com/Local/USNationalStd.asp?loc=usa&seg=LocalWeather&prodgrp=SurfaceMaps&product=JetStream&prodnav=none

but we're expecting
another storm here in Southern California within the next day or two. You
might have more fun this weekend.

We just had an earthquake half an hour ago... not to bad at my house, but
it might have been worse nearer the epicenter.

-- Mike --

Yep. That SW wind that then swings east is doing a number on us...
except our drought is over... the reservoirs are overflowing into the
Salt River and there's many FEET of snow in the mountains.

...Jim Thompson

Just the other day I read in the financials there is a serious drought problem all across the southwest. The article made a point
that both Lakes Mead & Powell are at all time lows. Production of power & the recreation business was said to be way down. Also,
the possibility of water rationing. Talk of importing water down the mountain chain is again on.

Will this rain be enough to get things back to normal? The photos of those lakes didn't look to good.

JLS

I don't think Arizona gets any potable water from Mead or Powell...
just boat recreation ;-) Most of that water goes to Las Vegas and Los
Angeles.

Although there IS a canal from the Colorado River stretching east to
Tucson for agricultural irrigation.

Phoenix water is from wells, Horseshoe Reservoir, and the lake string
of Theodore Roosevelt, Apache, Canyon and Saguaro Lakes... all fed
from snow-melt... presently at overflow condition, water running down
the Salt River thru town, with several roads closed and even a portion
of Loop 202 flooded.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice

480)460-2350 | |
| E-mail Address at Website Fax

John Larkin · Jan 6, 2005

On Thu, 06 Jan 2005 13:40:13 -0500, Spehro Pefhany
<speffSNIP@interlogDOTyou.knowwhat> wrote:

On 6 Jan 2005 08:00:44 -0800, the renowned bill.sloman@ieee.org wrote:

Johnson and Graham's "High Speed Digital Design" (ISBN-0-13-395724-1)
talks about this in section 5.6 - Guard Traces - on pages 201-204 in my
copy.

The message is that running your traces over a solid ground plane is
the way to substantially reduces cross-talk. Adding guard traces
between acitve tracks already running over a ground plane roughly
halves the residual cross-talk, and you can halve this again by putting
lots of vias along the guard trace to tightly couple it to the ground
plane.

"Lots of vias" (actually "vias at frequent intervals") is referred back
to J.A.Coekin "High Speed Pulses Techniques" Pergamon Press, Oxford,
1975 pages 203-205 - a book that I've never seen nor heard of.

Hi, Bill:-

Okay, thanks, I've found some info in "High-Speed Circuit Board Signal
Integrity" (Thierauf) which suggests vias every 1/10 of a rise time
in the guard trace(s). An example shows crosstalk reduced by 4:1 for
the same *signal* trace spacing. References for double guard traces
("coplanar transmission line") are to (neither of which I have easy
access to at the moment):

Gopinath "Losses in Coplanar Waveguides" IEEE Trans. Microwave Theory
and Techniques, Vol. MTT-30, No. 7, July 1982, pp. 11011104.

and

Knorr "Analysis of Coupled Slots and Coplanar Strips on Dielectric
Substrate" IEEE Trans. Microwave Theory and Techniques, Vol. MTT-23,
No. 7, July 1975, p. 541.

Hope this helps. I've got a pair of text books specifically covering
microstrip, but they weren't a good investment - I could poke around in
them if you are desperate, but I don't like my chances of coming up
with anything useful.

If there's anything (simple) on the effect of the guard traces on the
characteristic impedance, I'd really appreciate having it. This isn't
picosecond stuff I'm working with.

You can probably treat the guards as being very wide, since there
won't be much field on the far side of a guard trace. So just use the
signal trace dimensions and the gap distance to the guard traces and
pretend it's coplanar waveguide. Appcad or Txline or one of those
progs will then calculate the trace impedance.

We had a crosstalk problem a while back and did a bunch of
measurements to determine trace-trace capacitances among rows of
parallel runs and a couple of cases with guard traces. This was slow
stuff, so we were only concerned about capacitance, not full e-m
coupling. On the surface of a typical multilayer with three
closely-spaced traces, the effective c between the two outer traces
dropped about 4:1 if the middle one was grounded, as opposed to
floating or just not there.

John

John Woodgate · Jan 7, 2005

I read in sci.electronics.design that Jim Thompson
<thegreatone@example.com> wrote (in <vqitt09gb78a24sbn4tv9vqeqtqnv6hbql@
4ax.com&gt

about 'OT: Wild Weather', on Fri, 7 Jan 2005:

MIT* doesn't agree with the global warming theories... that's good
enough for me.

Is there a web page that explains why?
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

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