How about having an Amateur Radio Operator design an antenna optimized
for the lower frequencies? Or design one, one's self. Then calibrate it
against a known antenna. Should not be difficult.
Doug
University of Oxford
Department for Continuing Education
Oxford, Oxfordshire, United Kingdom
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Doug Smith
P.O. Box 60941
Boulder City, NV 89006-0941
TEL/FAX: 702-570-6108/570-6013
Mobile: 408-858-4528
Email: [email protected]
Web: http://www.dsmith.org
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On Fri, 8 Jan 2016 14:44:07 -0800, "Ghery S. Pettit"
<[email protected]> wrote:
Talk to the antenna vendors. 20 V/m with 100 Watts is going to be tough.
Ghery Pettit
-----Original Message-----
From: Kunde, Brian [mailto:[email protected]] Sent: Friday,
January 08, 2016 12:33 PM
To: [email protected]
Subject: [PSES] Best antenna for IEC 61000-4-3
I'm looking for suggestions on the best antenna to use for Radiated Immunity
test according to IEC 61000-4-3 between 80Mhz and 1Ghz. (we use a dual ridge
horn above 1Ghz).
Our goal is to find an antenna which is not too large, yet, will give us
good gain at the low end so we can generate 18-20V/m with a 100 watt
amplifier.
I've looked at the hybrid antennas and they just don't seem to have enough
gain at the low end. It appears that most labs that use this type of antenna
requires a 200 watt amp.
Looks like a Log Periodic has much better gain and should work but we don't
want the radials to get too close to the floor. Plus, some of these are
nearly 2 meters long.
Any suggestions or recommendations? What antenna do you use and how much
power do you required to achieve 10V/m with 80% AM modulation without
clipping??
Thanks,
The Other Brian
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