On 28 dic, 17:45, "Bill Miller" wrote:
"Wimpie" wrote in message

...
On 27 dic, 20:44, "Bill Miller" wrote:



"Wimpie" wrote in message

...

Hello,

Does somebody have experience with ANSOF (www.antennasoftware.com.ar),
especially with planar circuits? Is this a NEC based package?

They say you can use a flat strip as basic element (like in the
"planar" commercial SW packages), though they speak of wire segments
in most other documents on their site. They also mention that you can
simulate wire segments in dielectric or magnetic media. This looks
nice for the relative low price.

Best regards,

Wim
PA3DJS
www.tetech.nl

Hello Wim...

I haven't use it, but I can steer you to where you can get your questions
answered.

Go towww.antennex.com, This site is devoted entirely to antennas and
related items. Join the antenna discussion list (no charge) and post your
question there.

If there is a group that is more aware of what is going on with antennas,
I
haven't found it. Everything from PhD professors to ex and current
professional antenna designers to "just plain hams" (like me).

All the best

Bill Miller
KT4YE

Hello Bill,

I made a free account for the "guest rooms". *I checked several free
documents (lots of material from L. B. Cebik (W4RNL) *). Nevertheless
nothing about "ansof". *Maybe somebody with a non-free account can
check other parts of the website for ansof.

Best regards and thanks for the info,

Wim
PA3DJSwww.tetech.nl

Hi Wim...

Sorry. I did not make myself clear. I do not believe there is any useful
information on this subject in the antenneX website, nor in Cebik's site.
(but there is a TON of other info there!)

From the antenneX website, subscribe to the antenna discussion email list
and post your question there. I'll be pretty surprised if you don't get
meaningful answers!

All the best,

Bill

Hello Bill,

You did make yourself fully clear to me with your first reply, thanks
for that. If it is/was useful existing SW, I would expect at least
some info on the antennex site, without the need for creating a new
topic.

I expect that at least some users of antennex also follow this NG and
would respond if they know something about the ansof package.
Therefore I didn't started a new topic yet.


Wim
PA3DJS
www.tetech.nl
without abc, PM will reach me in most cases

On 29 dic, 13:30, "J.B. Wood" wrote:
On 12/27/2010 02:44 PM, Bill Miller wrote:



*wrote in message
...
Hello,

Does somebody have experience with ANSOF (www.antennasoftware.com.ar),
especially with planar circuits? *Is this a NEC based package?

They say you can use a flat strip as basic element (like in the
"planar" commercial SW packages), though they speak of wire segments
in most other documents on their site. *They also mention that you can
simulate wire segments in dielectric or magnetic media. This looks
nice for the relative low price.

Best regards,

Wim
PA3DJS
www.tetech.nl

Hello Wim...

I haven't use it, but I can steer you to where you can get your questions
answered.

Go towww.antennex.com, This site is devoted entirely to antennas and
related items. Join the antenna discussion list (no charge) and post your
question there.

If there is a group that is more aware of what is going on with antennas, I
haven't found it. Everything from PhD professors to ex and current
professional antenna designers to "just plain hams" (like me).

All the best

Bill Miller
KT4YE

Ah, yes, the website that promoted the CFA while simultaneously warping
electromagnetic theory. *But then I guess I just "don't understand".
Thanks, but I'll stick with ARRL pubs and ref books by Kraus, Jasik,
Terman, King & Harrison, et al for trusted, practical info on antennas.
* 73s,

--
John Wood (Code 5520) * * * *e-mail:
Naval Research Laboratory
4555 Overlook Avenue, SW
Washington, DC 20375-5337

Hello John,

OT: There is info on EH, CFA and other fancy antennas on antennex, and
many other places. That doesn't make such places useless. I have dug
through many documents on antennex and there is lot's of useful info.

As with all "information", the difficulty is finding out whether the
"information" is useful for one's special situation. Some of my
favourite books: Kraus, Orfanidis, the services textbook of radio
volume 5, antenna engineering handbook (Johnson).


Wim
PA3DJS
www.tetech.nl
without abc, PM will reach me in most cases

On Dec 29, 2:01*pm, "J.B. Wood" wrote:
On 12/29/2010 07:34 AM, K1TTT wrote:

then what are you doing in here, home of art, mr.b, and in past years,
fracky himself!

Because it's entertaining, often thought-provoking and never dull. *I
have no quarrels with the folks you mention and they can hold whatever
views they wish; they are certainly capable of producing workable ham
band antennas. *The problem is the "procrustean bed" that is often used
to "fit" the theory to the antenna design. *In the extreme it's the
difference between tinkering and hoping for an efficient, practical
solution vs. applying good engineering and science in coming up with a
viable implementation (which is why I mentioned those reference books in
my previous post). *Sincerely, and 73s from N4GGO,

--
John Wood (Code 5520) * * * *e-mail:
Naval Research Laboratory
4555 Overlook Avenue, SW
Washington, DC 20375-5337

thats good, you seem to be here for the right reasons anyway.

"J.B. Wood" wrote in message
...
snip
Ah, yes, the website that promoted the CFA while simultaneously warping
electromagnetic theory. But then I guess I just "don't understand".
Thanks, but I'll stick with ARRL pubs and ref books by Kraus, Jasik,
Terman, King & Harrison, et al for trusted, practical info on antennas.
73s,

Well, I was there for most of the CFA "saga," and saw no such "promotion."
Instead, I watched the constant stream of challenges by both Jack Stone --
the publisher, and a host of others (including yours truly) that examined
the CFA from all angles and came to the same conclusion: The CFA is/was a
hoax based on the inventors's lack of understanding of EM theory.

All the best,

Bill Miller

"Wimpie" wrote in message
...
Hello David,

On 28 dic, 18:32, K1TTT wrote:
On Dec 26, 3:07 pm, Wimpie wrote:

Hello,

Does somebody have experience with ANSOF (www.antennasoftware.com.ar),
especially with planar circuits? Is this a NEC based package?

They say you can use a flat strip as basic element (like in the
"planar" commercial SW packages), though they speak of wire segments
in most other documents on their site. They also mention that you can
simulate wire segments in dielectric or magnetic media. This looks
nice for the relative low price.

Best regards,

Wim
PA3DJSwww.tetech.nl

their description doesn't mention NEC:

"The computer code is based on an Electric Field Integral Equation
(EFIE) expressed in the frequency domain. The current distribution on
metallic structures is computed by solving the EFIE using a full-wave
Method of Moments (MoM) formulation with conformal geometry
decomposition. This means that geometry details are modeled by using
conformal segments, which exactly follow the contour of the structure,
instead of the typical approximation with straight wire segments. "

Your citation was the reason for me to think: "maybe it isn't NEC
based and is able to some other nice things". However when you look to
further info on the site, it looks wire based. If it is capable of
using other basic elements/segments (for example flat strip), I would
expect some examples on their website.

lots of nice words, and plenty of pretty pictures on their site... but
i wonder how well verified it is.

Given the info on the web and the responses to my thread, I agree on
your statement.

Best regards,


Wim
PA3DJS
www.tetech.nl
without abc, PM will reach me in most cases

OK! I'll post a query myself and report back.

Bill

On 12/29/2010 12:22 PM, Bill Miller wrote:
"J.B. wrote in message
...
snip
Ah, yes, the website that promoted the CFA while simultaneously warping
electromagnetic theory. But then I guess I just "don't understand".
Thanks, but I'll stick with ARRL pubs and ref books by Kraus, Jasik,
Terman, King& Harrison, et al for trusted, practical info on antennas.
73s,

Well, I was there for most of the CFA "saga," and saw no such "promotion."
Instead, I watched the constant stream of challenges by both Jack Stone --
the publisher, and a host of others (including yours truly) that examined
the CFA from all angles and came to the same conclusion: The CFA is/was a
hoax based on the inventors's lack of understanding of EM theory.

All the best,

Bill Miller


Hello, and yes, IIRC to his credit Mr. Stone did publish (later on) Dr.
John Belrose's "mythbusting" of the CFA. Who at antennex was demanding
performance measurements to substantiate the CFA's proponents' claims?
Did the quantity and duration of those CFA articles on the website
confer legitimacy and promotion? Did Mr. Stone transform from believer
to skeptic? I wonder if antennex is at least in part more about
entertainment and tantalizing pseudo-science rather than reality. Like
a certain TV show starring two Roto-Rooter plumbers "ghost hunting" in
their spare(?) time. Hey, if you can't get valid measurements on your
test equipment just substitute melodramatics. 73s,

--
John Wood (Code 5520) e-mail:
Naval Research Laboratory
4555 Overlook Avenue, SW
Washington, DC 20375-5337

"Bill Miller" wrote in message
...


OK! I'll post a query myself and report back.

Bill
One of our antenneX group replied that he had tried to get a download of
evaluation software. He was not successful. I'll let you know if anyone else
has input.

All The best,

Bill