Forums

Free antenna simulation software?

Started by larwe February 8, 2011
This is actually for a school project... so warning in advance!

I would like to simulate an antenna design - exactly one. A very
simple antenna; it's supposed to be a receiver for UHF digital TV
signals. What I'd ideally like is a 3D estimated plot of the pattern
after drawing in the basic geometry. I could build one and scope it
out with a sig gen and a spectrum analyzer, but this will involve
borrowing equipment from people with whom I no longer have a strong
relationship.

Or I could sit down and mess about with the math and plot points by
hand - which I guess I am up to do if there is no choice. But is there
a piece of software - demo version would be fine - that will save me
some work?

Thanks.
On Feb 8, 4:29=A0pm, larwe <zwsdot...@gmail.com> wrote:
> This is actually for a school project... so warning in advance! > > I would like to simulate an antenna design - exactly one. A very > simple antenna; it's supposed to be a receiver for UHF digital TV > signals. What I'd ideally like is a 3D estimated plot of the pattern > after drawing in the basic geometry. I could build one and scope it > out with a sig gen and a spectrum analyzer, but this will involve > borrowing equipment from people with whom I no longer have a strong > relationship. > > Or I could sit down and mess about with the math and plot points by > hand - which I guess I am up to do if there is no choice. But is there > a piece of software - demo version would be fine - that will save me > some work? > > Thanks.
http://mmhamsoft.amateur-radio.ca/pages/mmana-gal.php Leon
On Tue, 8 Feb 2011 08:29:47 -0800 (PST), larwe <zwsdotcom@gmail.com>
wrote:

>This is actually for a school project... so warning in advance! > >I would like to simulate an antenna design - exactly one. A very >simple antenna; it's supposed to be a receiver for UHF digital TV >signals. What I'd ideally like is a 3D estimated plot of the pattern >after drawing in the basic geometry. I could build one and scope it >out with a sig gen and a spectrum analyzer, but this will involve >borrowing equipment from people with whom I no longer have a strong >relationship. > >Or I could sit down and mess about with the math and plot points by >hand - which I guess I am up to do if there is no choice. But is there >a piece of software - demo version would be fine - that will save me >some work?
4nec2 is the usual tool for this... and it's free! http://home.ict.nl/~arivoors/ And here's a starting point for one UHF design that has gotten good results http://www.digitalhome.ca/ota/superantenna/. They include 4nec2 antenna patterns for some configurations, as well. -- Rich Webb Norfolk, VA