To provide an electric wave absorber which shows better electric wave absorbing characteristics than a conventional resonant single layer sheet in broader bands, and is remarkably thinner than a conventional pyramidal electric wave absorber for a microwave chamber having broad-band characteristics.
According to the coated-bar array type electric wave absorber, an array of columnar conductor cores 1 coated with an electric absorbing material (coated bars) are formed on the electric wave incident side of a conductor reflective plate 2 or a conductor reflective plate 2 coated with an electric wave absorbing material. The diameter of each columnar conductor cores 1 is 1/20 of the wavelength of the incident electric wave or larger, and a gap at each coated bar 1 is equal to the wavelength of the incident electric wave or smaller.
HOSOI KOICHI
IMAOKA SUSUMU
KAJIMA YOSHIO
Tadashi Sugakawa
Osamu Futakuchi
Hiroaki Ito
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