Of course one of the most challenging part of the EM simulators is preparing the correct model of the structure you want to simulate. Unfortunately (for me) I'm mostly a try-it guy rather than simulate-it so I prefer to build and try with test equipment. My first QFH was too high in frequency (GLONASS-ready?) so I have to build another one.
On Sat, Jun 9, 2012 at 4:11 PM, David Kirkby <[email protected]>wrote: > On 8 June 2012 09:31, Raj <[email protected]> wrote: > > > > I came across this article. I dont understand Italian! > > From RadioKit Elettronica 2003-03 > > > > https://dl.dropbox.com/u/10377704/IV3QBN%20QuadHelix.pdf > > > > Cheers > > > > -- > > Raj, VU2ZAP > > Bangalore, India. > > I'd be interesting in trying to see some simulations of this in a full > wave 3D electromagnetic simulator like HFSS from Ansys, FEKO, EMpro > from Agilent etc. I currently have a trial license for Agilent's > EMpro, but don't feel confident in trying this antenna. I would have > been a bit happier using HFSS, but don't have a license for it. > > Maybe one of the much cheaper NEC based programs coud do this, though > I'm not so sure I'd trust the results, whereas I would from HFSS. > > HFSS (which costs a small fortune), comes with a free antenna design > kit. That is able to design a Quadrifilar Helix Antenna, but needs a > ground plane, so has a very different radiation pattern to this. > > Dave > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
