Electromagnetic wave absorber

A method of absorbing electromagnetic waves, the method comprising:

• using an electromagnetic wave absorber to absorb electromagnetic waves, the electromagnetic wave absorber including,
• an element receiving layer provided with a first type and a second type of conductor elements having resonant frequencies, to perform the same or different receiving operations, the element receiving layer conductor elements being disposed on a surface of the element receiving layer on a side from an incoming direction of electromagnetic waves, to be spaced away from each other, and
• a loss material for causing energy loss to electromagnetic waves proximate to the element receiving layer,
• wherein the first type of the conductor elements are cross conductor elements that are cross-shaped planes, and the second type of the conductor elements are quadrangular conductor elements that are quadrangle-shaped planes,
• the cross conductor elements and the quadrangular conductor elements are arranged in a direction intersecting the incoming direction of electromagnetic waves,
• the cross conductor elements are arranged in a regular manner,
• the quadrangular conductor elements are arranged in areas surrounded by the cross conductor elements so as to fill in the areas,
• each corner of the quadrangular conductor elements is arc shaped, the arc shape having a radius of curvature corresponding to the resonant frequencies, and
• at least each concave corner of the cross conductor elements is arc shaped, the arc shape having a radius of curvature corresponding to the resonant frequencies.