KEYCOM provides solutions in the 300 GHz to 1 μHz frequency range (SHF/EHF/MW/UHF/VHF/ULF).
We undertake designing, manufacturing and measuring. Please feel free to contact us.

Shield Effect Measurement Service

Catalog No. ssem

KEYCOM has abundant experiences concerning the shielding effectiveness of the device and the cable.
We are developing the shield effect measurement device of accurate, practicable, various materials.

You want to measure the shielding effectiveness of a seat specimen.

It measures it by using the following system. Please inform us of frequency bands desired.
Coaxial tube type Effect of shield measurement system (12.0MHz~18.0GHz)
sem01002011015-01
This system conforms to ASTM D4935.
It measures the effect of shield at high accuracy by the plane wave.
* There is a dynamic range of 100dB or more.
* It is for coaxial tube, 153D, 39D, 20D, and the GPC7 type.
* You can keep the file data in Excel format and can reproduce a graph with this.
Waveguide type Effect of shield measurement system (1.0GHz~90.0GHz)
sem02002011015-01
This system can be measured the shield effect of the specimen at wide range.
It is 100dB dynamic range at 1GHz~40GHz,and 70dB dynamic range at 40GHz~90GHz.
It is waveguide structure, an incidence angle of the plane wave to the specimen changes every frequency.
Therefore, you can measure relations between an incidence angle to the specimen of the plane wave and effect of shield.
 

You want to measure the shielding effectiveness of the cable.

It measures it by using the following system. Please inform us of frequency bands desired.
For cable Effect of shield measurement system
sem03002011015-01
This system is a standard measurement method, that conforms to MIL-C-85485A.
It is effective to the evaluation of the coaxial cable and the multi core cable.
It can be corrected it by the value of the characteristic impedance.
Crosstalk type For cable Effect of shield measurement system
sem04002021210-03
It is based on the crosstalk method, and the effect of the shield can be easily measured.
It supports from a coaxial cable to multi core cable.
It prevents mismatting by the characteristic impedance difference with a pad of 10dB.