Smith Chart program
 

I'd appreciate any recommendations for an inexpensive Smith chart based
program which can be used for the design of basic matching networks and
the like. I'm looking for something along the line of MicroSmith or
WinSMITH, neither of which is any longer available.

Thanks,
Roy Lewallen, W7EL

Smith Chart program
 

["Followup-To:" header set to rec.radio.amateur.antenna.]
On Thu, 12 Apr 2007 11:25:45 -0700, Roy Lewallen wrote:
I'd appreciate any recommendations for an inexpensive Smith chart based
program which can be used for the design of basic matching networks and
the like. I'm looking for something along the line of MicroSmith or
WinSMITH, neither of which is any longer available.


http://www.jcoppens.com/soft/linsmith/index.en.php

See also:

http://education.tm.agilent.com/index.cgi?CONTENT_ID=5

using a JAVA-enabled browser. Pretty neat, that.

73
Jonesy
--
Marvin L Jones | jonz | W3DHJ | linux
38.24N 104.55W | @ config.com | Jonesy | OS/2
*** Killfiling google posts: http://jonz.net/ng.htm

Smith Chart program
 

On 12 Apr 2007 18:31:55 GMT, Allodoxaphobia wrote:
["Followup-To:" header set to rec.radio.amateur.antenna.]
On Thu, 12 Apr 2007 11:25:45 -0700, Roy Lewallen wrote:
I'd appreciate any recommendations for an inexpensive Smith chart based
program which can be used for the design of basic matching networks and
the like. I'm looking for something along the line of MicroSmith or
WinSMITH, neither of which is any longer available.


http://www.jcoppens.com/soft/linsmith/index.en.php

See also:

http://education.tm.agilent.com/index.cgi?CONTENT_ID=5

using a JAVA-enabled browser. Pretty neat, that.

Oh, and (sorry to followup to my own post) see the "External links"
at the bottom of the Wikipedia entry:

http://en.wikipedia.org/wiki/Smith_chart


73 agn
Jonesy
--
Marvin L Jones | jonz | W3DHJ | linux
38.24N 104.55W | @ config.com | Jonesy | OS/2
*** Killfiling google posts: http://jonz.net/ng.htm

Smith Chart program
 

Thanks for the suggestions, but I see I need to be more specific about
what I need.

I'm looking for a Windows-based program that runs on a local machine
rather than remotely as at a web site. The objective is to find a
program for EZNEC to write input files for, so that its frequency sweep
impedance data can be easily and directly imported into the Smith chart
program for visual analysis and to aid in designing narrow and broadband
matching networks for antennas. EZNEC originally did this for
MicroSmith, then WinSMITH input file writing was added when MicroSmith
became unavailable. Now WinSMITH is also unavailable, so I'm looking for
another one which I can adapt EZNEC to.

Roy Lewallen, W7EL

Smith Chart program
 

On Apr 12, 11:25 am, Roy Lewallen wrote:
I'd appreciate any recommendations for an inexpensive Smith chart based
program which can be used for the design of basic matching networks and
the like. I'm looking for something along the line of MicroSmith or
WinSMITH, neither of which is any longer available.

Thanks,
Roy Lewallen, W7EL


Hi Roy,

Darn, sorry that WinSMITH is no longer available. Hope you'll
continue to support that format for those of us with that program.
Based on what I just found, I don't have any reason to quit using it.

You might try LLSmith from http://tools.rfdude.com/RFdude_Smith...t_program.html.
I don't like it as much as WinSMITH, but it looks like it does
somewhat similar things. I found it via a Google search, which led me
among other places to http://www.sss-mag.com/smith.html and
http://www.circuitsage.com/matching.html. The latter one provided the
link to LLSmith. I think I have a useable version of Motorola's Smith
chart program somewhere, but the version I just downloaded is pure
garbage from my point of view; it may work but it's so awkward that
it's worthless to me.

Cheers,
Tom

Smith Chart program
 

K7ITM wrote:

Darn, sorry that WinSMITH is no longer available. Hope you'll
continue to support that format for those of us with that program.
Based on what I just found, I don't have any reason to quit using it.

You might try LLSmith from http://tools.rfdude.com/RFdude_Smith...t_program.html.
I don't like it as much as WinSMITH, but it looks like it does
somewhat similar things. I found it via a Google search, which led me
among other places to http://www.sss-mag.com/smith.html and
http://www.circuitsage.com/matching.html. The latter one provided the
link to LLSmith. I think I have a useable version of Motorola's Smith
chart program somewhere, but the version I just downloaded is pure
garbage from my point of view; it may work but it's so awkward that
it's worthless to me.

Thanks, I'll look those up. Negative recommendations are as useful as
positive ones, so thanks for those too.

Don't worry, EZNEC will continue to write your choice of either
MicroSmith or WinSMITH files as well as whatever program I choose for
their successor.

Roy Lewallen, W7EL

Smith Chart program
 

On Apr 12, 11:25 am, Roy Lewallen wrote:
I'd appreciate any recommendations for an inexpensive Smith chart based
program which can be used for the design of basic matching networks and
the like. I'm looking for something along the line of MicroSmith or
WinSMITH, neither of which is any longer available.

Thanks,
Roy Lewallen, W7EL

Additional comment: if you write impedance files in standard network
analyzer format, they can be used by a lot of programs. I believe you
can find fairly detailed descriptions of the .s1p format on the web.
In particular, RFSim99 can read such files and use them in a 1-port
representation. It will even do an automatic L match to an impedance,
and will display S11 on a Smith chart. (But I'm remembering a problem
if you write them in dB format, something about that RFSim99 uses
10^(dB/10) instead of 10^(dB/20) to convert them to linear before it
uses them...)

Cheers,
Tom

Smith Chart program
 

On Apr 12, 1:40 pm, Roy Lewallen wrote:
Thanks for the suggestions, but I see I need to be more specific about
what I need.

I'm looking for a Windows-based program that runs on a local machine
rather than remotely as at a web site. The objective is to find a
program for EZNEC to write input files for, so that its frequency sweep
impedance data can be easily and directly imported into the Smith chart
program for visual analysis and to aid in designing narrow and broadband
matching networks for antennas. EZNEC originally did this for
MicroSmith, then WinSMITH input file writing was added when MicroSmith
became unavailable. Now WinSMITH is also unavailable, so I'm looking for
another one which I can adapt EZNEC to.

Roy Lewallen, W7EL

OK, I gotta quit looking at Smith chart stuff...

Are you sure WinSMITH is no longer available? See http://www.scitechpub.com/WinSmith.htm.
Looks pretty current to me. My 2.0 version was provided on floppy,
and I see they've gotten into the 21st century and have it on CD-ROM.

Cheers,
Tom

Smith Chart program
 

Roy Lewallen wrote:
I'd appreciate any recommendations for an inexpensive Smith chart based
program which can be used for the design of basic matching networks and
the like. I'm looking for something along the line of MicroSmith or
WinSMITH, neither of which is any longer available.

Thanks,
Roy Lewallen, W7EL

Try SmartSmith for Windows by W9DMK.

Bob, w6nbi

--
When replying direct, remove the Z in my email address.

Smith Chart program
 

On Thu, 12 Apr 2007 11:25:45 -0700, Roy Lewallen
wrote:

I'd appreciate any recommendations for an inexpensive Smith chart based
program which can be used for the design of basic matching networks and
the like. I'm looking for something along the line of MicroSmith or
WinSMITH, neither of which is any longer available.

Thanks,
Roy Lewallen, W7EL

Hi Roy,

There is a very slick one Switzerland:
http://www.fritz.dellsperger.net/downloads.htm
from Dr. Fritz Dellsperger.

It, like your software, has a free but limited use. Getting the full
use one is rather more obscure as there is nothing mentioned at his
site as how to get a key or otherwise obtain full use (more than a
limited number of points). Somewhere, there was the suggestion of
accommodating a user if they emailed, but that never worked for me.

73's
Richard Clark, KB7QHC

Smith Chart program
 

Roy Lewallen wrote:
I'm looking for a Windows-based program that runs on a local machine
rather than remotely as at a web site.

Somebody tell Roy that Robert Lay, W9DMK, has a
SMARTSMITH program that may or may not be what
he is looking for and may or may not be
EZNEC compatible.

http://www.qsl.net/w9dmk/
--
73, Cecil http://www.w5dxp.com

Smith Chart program
 

On Thu, 12 Apr 2007 11:25:45 -0700, Roy Lewallen wrote:

I'd appreciate any recommendations for an inexpensive Smith chart based
program which can be used for the design of basic matching networks and
the like. I'm looking for something along the line of MicroSmith or
WinSMITH, neither of which is any longer available.

Thanks,
Roy Lewallen, W7EL

Roy
Here is the URL for WinSMITH from Sci Tech Publishing at $125 their price.
Dave Foreman

http://www.scitechpub.com/WinSmith.htm


winSMITH 2.0 automates the graphical solution of transmission line and lumped
element matching networks. It is also an excellent training aid for RF and
microwave circuit design.

The power of the Smith chart is the ability to present complex data visually,
making possible informed judgments regarding transmission line systems, measured
data, antennas, matching and other networks.

winSMITH simplifies the process by replacing the paper chart, a pencil, compass
(and eraser!) with computerized screen graphics. It offers the speed, accuracy,
and repeatability provided by the personal computer and instantaneous data
readout in multiple formats. This program is for Windows 98 and XP.

Smith Chart program
 

Thanks, everyone, for the info. I'm surprised and glad to see that
WinSMITH is available again. It was offered first by its publisher,
Noble, then later by the ARRL. I'm quite sure there was a period after
the ARRL dropped it when it wasn't available. There are some things
about it I and others don't like, particularly the 15 step limit to
imported impedance data. But EZNEC currently writes files compatible
with the "current" (1998) version of WinSMITH. It's apparent, though,
that it won't be updated, so it's a good idea to locate a substitute
anyway. I've downloaded the Swiss program and will look over the others
you've been kind enough to recommend. Thanks again.

Roy Lewallen, W7EL

Smith Chart program
 

In rec.radio.amateur.antenna Roy Lewallen wrote:
I'd appreciate any recommendations for an inexpensive Smith chart based
program which can be used for the design of basic matching networks and
the like.

Try QUCS:

http://qucs.sourceforge.net/

I have used it to help in the design of RF matching circuits. It accepts
S-parameter model input, and depicts sim results on a Smith chart.

Take care,
-Chris

--
| Christopher Cole, Cole Design and Development |
| Embedded Electronics and Software Design http://coledd.com |

Smith Chart program
 

"K7ITM" wrote in message
ups.com...
Additional comment: if you write impedance files in standard network
analyzer format, they can be used by a lot of programs.

Good idea Tom. Roy: Besides RFSim99, Agilent's free AppCAD program has a
mode where it can overlay a set of data on a Smith chart, having read it
from the Touchstone ("standard network analyzer format") files.