| 摘要 |
PROBLEM TO BE SOLVED: To make a radio wave anechoic chamber compact by an effective means for preventing reflected waves of the radio waves with an incident angle of 60 degrees or more on the installation plate over a wide frequency band, so as to solve the problem in the conventional radio wave absorber of the impedance matching failing and performance is reduced as the incident angle becomes large, even if the impedance matching of incoming radio waves with a small incident angle with respect to the installation plane is appropriate. SOLUTION: A radio wave shielding board is provided within a plane, including the axial line of the body of the radio wave absorber and its parallel line, thereby preventing reflected waves over a wide band with respect to all incident angles. The radio wave shielding board may be installed plural in number, according to the purpose of preventing reflecting waves and may be projected to the outside of the body of the radio wave absorber.
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