Reduction Techniques of Electromagnetic Field Penetration through Slots

摘要

PURPOSE: A method for reducing electromagnetic wave permeating through slit is provided to reduce a permeating electromagnetic wave covering wide band by settling two conductor lines or two conductor plates controlling an aperture plane field distribution in a slit which is placed on a wall of a case. CONSTITUTION: A plurality of reactance or impedance for controlling an aperture plane field distribution is settled in a slit which is placed on a wall of a case. Two conductor lines or two conductor plates for the reactance or impedance are settled on incident side of an electromagnetic wave or on opposite side.