Millimeter wave absorbing sheet - masa sorb -

masa-sorb - ミリ波吸収シート
Millimeter wave absorbing sheet for radar with wide bandwidth, wide angle, and high absorption performance
EMC (Electromagnetic Compatibility)
Product category Safety(ADAS) Design/Comfortable

-Challenge- Prevention of malfunction due to noise interference

With millimeter-wave radar increasingly being used in automobiles in recent years, noise interference can reduce the accuracy level of measurements when detecting target distances and angles, such as by reducing the maximum distance at which it recognizes the size of a target.
In addition, interference from other radar antennas can lead to a reduced ability to distinguish between multiple target types.

-Solution- Thin millimeter wave absorbing sheet for wide bandwidth

Masa-sorb is a thin absorber that utilizes sputtering technology and can be adjusted for specified frequencies (around 20-100 GHz), providing high absorbency over a wide bandwidth.
It is lighter than conventional rubber absorbers and can be easily attached with double-faced tape.
Masa-sorb offers a smoother antenna pattern.

-Technology- Technical information

Technical information

Technical overview

 Wide band

Corresponds to 76 ~ 81GHz

Corresponds to high frequency with
an attenuation performance at 20 dB or above Contributes to S/N improvement.

Incident angle
characteristics

Protects noise
from oblique incident

Maintains absorption at 15 dB or more at an incident angle of 40°.

 Ultra thin

0.8mm Thickness

Applicable to device's miniaturization and thinning.

 High durability

Works at 150°C

Maintains absorption performance
even in 150°C environments.

Technical details

 Wide band

Absorption performance [ Free-Space method ]

Absorption performance of 20 dB at 76 ~ 81GHz

Effect implemented on board radar

Antenna pattern improvement, detection accuracy UP

 Incident angle characteristics

[Test condition]
Attenuation performance. S11Free-Space method

Absorption performance of more than 15dB even at 40° incident angle

 Ultra thin

Corresponds high frequency absorption at 20dB or more
and miniaturization with a thickness of 0.8mm

 High durability

[Test condition]
Attenuation performance.S11Free-Space method
  • Maintains absorption even with under a high temperature of 150 °C.
  • In a long-term reliability evaluation
(125 °C,-40 °C,8585,HC) there is no performance degradation.

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Catalog:Millimeter wave absorbing sheet - masa sorb -_SekisuiMobilitySolution

Catalog

pdf 2023-09-11
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