Electromagnetic shielding structure having choke structure

An electromagnetic-shielding structure comprising:

• an electromagnetic-shielding container having an opening;
• an electromagnetic-shielding cover that is movably attached to the electromagnetic-shielding container between a closing position and an opening position;
• and
• a choke structure disposed so as to be positioned between a circumference of the electromagnetic-shielding container defining the opening and a circumference region of the electromagnetic-shielding cover when the electromagnetic-shielding cover is at the closing position, the choke structure including a plurality of dielectric layers and a plurality of conductive layers that are alternately stacked,
• the plurality of conductive layers including a first conductive layer and a second conductive layer that are consecutively arranged, with a first dielectric layer of the plurality of dielectric layers disposed therebetween, and
• the first conductive layer having a first inner edge aligned with an inner edge of the first dielectric layer and a first outer edge not aligned with an outer edge of the first dielectric layer, and the second conductive layer having a second inner edge not aligned the inner edge of the first dielectric layer and a second outer edge aligned with the outer edge of the first dielectric layer.