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

Model No. ssem

KEYCOM has abundant experiences concerning the Shielding Effect(Shielding Effectiveness) of device and cables.
We develop high-quality Shield Effect measurement devices for accurate and practical results.

👉 If you are interested in our measurement system introduced as below, please notify us.

Measurementsheet Systems for Sheet sample

We implement measurement by following systems. Please inform us of required frequency bands.

Coaxial tube type Effect of shield measurement system (12.0MHz~18.0GHz) [SEM01]

The system complies with ASTM D4935, and is capable of measuring shield effect with plane wave with high accuracy.
  • Dynamic range over 100dB.
  • 153D、39D、20D and GPC7 coaxial type.
  • Data can be saved in Excel format, and reproduced graphically

Waveguide type Effect of shield measurement system (1.0GHz~90.0GHz) [SEM02]

SEM02 measures shield effect at wide ranges of 100dB between 1GHz~40GHz, and 70dB between 40GHz~90GHz.
The incidence angle of the plane wave to the sample changes as frequency changes, allowing you to measure the correlation between the incidence angle and the shield effect.

Measurement Systems for Cable

We implement measurement by following systems. Please inform us of frequency bands required.

Shield Effect Measurement System for Cable [SEM03]

The system is in compliance with MIL-C-85485A measurement method standard, effective for coaxial cable and the multi-core cable evaluation.
It compensates the result with the value of the characteristic impedance.

Crosstalk type For cable Effect of shield measurement system

Complying with the crosstalk method, SEM04 is capable of measuring the shield effect effectively.
  • It supports wide variety of cables from coaxial cables to multi-core cables.
  • It prevents mismatching caused by the characteristic impedance difference with a 10dB pad.