The usual parameters given with TEM cells are field uniformity and input
impedance (or VSWR). Although they may appear to be very good up to the
declared frequencies of operation, which depend on the transversal size of the
cell, they are only good for empty cells. Presence of any conductor in
some point a grounded element protruding into the center of the cavity
may disturb the field structure enough to invalidate the measurement.
--
>From: Jochen Feldhaar
>To: emc-p...@ieee.org
>Subject: Measuring inside a TEM cell
>Date: Wed, Nov 20, 2002, 11:25 AM
>
>
> He
Hello all,
I have a problem regarding E and H field generation inside a TEM cell. I
have built a standard cell with Zw of 150 Ohms, which I need to generate
a known magnetic field strength around 90 MHz. The separation of the top
and bottom conductor is 25 cm, the overall length is about 130
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