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.

Portable Type
Lens Antenna Method, Vertical Incidence Type
Electric Wave Absorber ∙ Return Loss Measurement System
JIS R1679 : 2007/IEC 62431 : 2008

Model No. EAS12

EAS12 is a portable version of the “Lens Antenna Method, Vertical Incidence Type
Electric Wave Absorber, Return Loss Measurement System: EAS07”
, that allows you to perform your measurement in the field.
Its movable antennas easily detect the influences caused by the seams in the electric wave absorbers.  
Unlike coaxial or waveguide type, errors by air gap do not occur because the sample is not capsulated in the fixture. Despite its compact dimensions, your sample can be measured with plane wave because the lenses are attached to the antennas, providing high measurement accuracy. Samples can be smaller than conventional systems because they can be placed in the vicinity of the antennas.

JIS R1679 : 2007
IEC 62431 : 2008


Frequency range 4.9-26.5GHz
Specimen size Larger than 300mm × 300mm
Device size Weight : 5kg
* The higher the measurement frequency is, the smaller the samples can be.
*By applying the gate beyond the lenses closer to the sample, electric wave absorption rate as low as approx. -50dB is measurable, using a standard vector network analyzer.

Parts No.

Name Frequency range Parts No.
Body, portable type(Lens, Lens fixed frame,
Antennna fixed stand,
Metallic board for calibration)
  LAFS Direct-4.9A
Antenna (with coaxial waveguide converter) 18-26.5GHz (WR-42) RH42S23SMA(f)5
12.4-18GHz (WR-62) RH62S22SMA(f)5
8.2-12.4GHz (WR-90) RH90S19SMA(f)5
5.85-8.2GHz (WR-137) RH137S18SMA(f)5
4.90-7.05GHz (WR-159) RH159S17SMA(f)5
3.95-5.85GHz (WR-187) RH187S16SMA(f)5
Measurement software, calibration and graphing   DMP-20
Microwave cable and adaptor   CM06A-SMA(m)SMA(m)-3000
Electric wave absorption material
(for small sample)
GPIB cable   GP-01
Vector network analyzer,
spectrum analyzer + synthesizer
Available upon request .
Please request the model of your choice.
Windows PC (with printer) Available upon request .
Please request the model of your choice.


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