[CTSARA] FARA May 7 Meeting - Antenna Modeling using EZNEC
Jon Perelstein
jon.perelstein at gmail.com
Wed Apr 23 20:53:58 EDT 2014
An introduction to the Modeling of Antennas using EZNEC
Wednesday, May 7th, 8:00PM, Fairfield Fire Training Center, One Rod Road,
Fairfield.
While an antenna analyzer can tell you a lot about the equivalent circuit
parameters of an antenna, it doesn't give a clue about what the antenna
actually does. Antenna modeling software can predict not only the same
circuit parameters, but also predict the radiation performance of an
antenna - BEFORE YOU BUILD IT!
IN this session, Joel Hallas, W1ZR, will introduce the popular EZNEC
antenna modeling software and demonstrate how to use it. While there will
be on-screen demonstrations, you are encouraged to also load the software
(a no cost demo version is available at www.eznec.com/demoinfo.htm, or on
the CD-ROM that comes with "The ARRL Antenna Book") onto your laptop or
tablet and bring it to the session to follow along live. You will then be
able to actually input data and run the program to see results on your
screen as the discussion unfolds.
If you want to read ahead, there is a 'quickstart' discussion offered as
Appendix A in "Basic Antennas", an ARRL handbook by Joel Hallas. The HELP
screens in EZNEC can also provide some information. Still, no preparation
is needed, and you will gain important insights even if you don't have the
software on your PC.
By the end of the session, you will be able to setup and run models of one
and two element antenna arrays, look at SWR plots, azimuth and elevation
patterns and understand the important considerations in modeling antennas.
Sounds like another good program. Anyone interested in car pooling?
73s
Jon
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