TEM Cells

TEM Cells

A TEM cell is a stripline device for radiated emissions and immunity testing of electronic devices. It is not a substitute, but because of its size and cost its a convenient alternative to measurements in an anechoic chamber. A TEM cell is made up of a septum, the conductive strip in the centre section and walls which are connected to ground. The geometry is configured to present a 50Ω stripline. The device under test (DUT) is positioned between the bottom wall and the septum. The TBTC1 is a so called “open TEM cell”, which has no side walls for convenient placement of the DUT. It may pick up RF background noise, which can be taken into account by doing a measurement of the cell output signal prior to powering on the DUT.

Part
Number
Dimensions
L x W x H
(mm)
Septum
Height
(mm)
Working Region
CISPR25
(mm)
Maximum
Usable Height
(mm)
Connectors
TBTC0 390 x 100 x 62 28 120 x 60 13 N-type female
TBTC1 390 x 200 x 108 50 120 x 120 35 N-type female
TBTC2 636 x 300 x 205 100 180 x 180 85 N-type female
TBTC3 1038 x 501 x 305 150 300 x 300 135 N-type female

TBTC0

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TBTC1

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TBTC2

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TBTC3

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