| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio wave absorber capable of absorbing radio waves having a center frequency in a frequency range of, especially, about 2 to 5.8 GHz more effectively than a conventionalλ/4 type absorber while maintaining superior heat insulating property and sound absorptitivty. SOLUTION: Disclosed is the radio wave absorber 1 formed as aλ/4 type absorber by stacking a resistance film layer 2 of 150 to 330Ωin surface resistance value, a fiber-based heat insulating sound absorber layer 3, and a radio wave reflecting layer 4 in order. For the resistance film layer 2, paper can be used which contains a dielectric loss body. Radio waves having its center frequency in the frequency range can effectively be absorbed by setting the thickness of the fiber-based heat insulating sound absorber layer 3 to 10 to 30 mm. COPYRIGHT: (C)2009,JPO&INPIT
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