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  3. Microwave Absorbers
  4. Radio wave absorbing ceramics (Wisera Co., Ltd.)
Radio wave absorbing ceramics-Radio wave absorbing ceramics
Radio wave absorbing ceramics-Wisera Co., Ltd.

Radio wave absorbing ceramics
Wisera Co., Ltd.

🚗 Automotive & Transport Use 💻 Electronics & Electrical Use

About This Product

Compared to conventional resin or rubber products, it has superior heat resistance and abrasion resistance, and can be used as a radio wave absorber mainly in the millimeter wave band.

■Features

・Effective in high frequency band. Removes noise from 20GHz to 100GHz. Supports high-speed, large-capacity communication ・No change over time. Can be used outdoors for a long time - Made of inorganic material and resistant to heat. No deformation or outgassing ・Radio wave absorbing material with three-dimensional structure mainly composed of alumina ・Excellent radio wave absorption characteristics in quasi-millimeter wave and millimeter wave bands ・Can be manufactured as a mounted part ・Excellent heat resistance ・High thermal conductivity ・High dimensional accuracy

■Applications

・Package components for noise countermeasures when using quasi-millimeter waves and millimeter waves (e.g., ultra-high-speed wireless LAN, millimeter-wave lasers, ITS, satellite broadcasting, optical communications, etc.) ・Various device parts

■Method of joining with metal

・Can be joined with adhesive ・Glass sealing suitable for long-term outdoor use is also possible (melting temperature of low melting point glass is 560℃) - Can be used at high temperatures due to the use of Kovar, which has a thermal expansion similar to that of ceramic.

  • Product

    Radio wave absorbing ceramics

  • Usage Scenarios

    Automotive & Transport Use / Electronics & Electrical Use

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1 Models of Radio wave absorbing ceramics

Image Part Number Price (excluding tax) Electrical resistance value Ω Apparent porosity % Linear expansion coefficient ~800℃ ×10^-6/K Characteristic retention temperature Thermal conductivity RT kacl/m・h℃ Thermal conductivity RT W/mK Specific heat capacity °C Structure retention temperature Elastic modulus RT GPa Strength bending RT MPa Compatible frequency Water absorption rate % Volume resistivity Ω・cm Outgas Bulk density g/cm2 (×103kg/cm2)
Radio wave absorbing ceramics-Part Number-Radio wave absorbing ceramics

Radio wave absorbing ceramics

Available upon quote

0.1k~100k

3.0~20.0

5.13

400℃

1.04

12.1

0.784

1,000℃

23.8

150~250

50GHz~75GHz

0.35

1~10×10^7

No occurrence (up to 400℃)

3.00~3.50

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About Company Handling This Product

Wisera Co., Ltd.

  • Japan

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Microwave Absorbers
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