A split ring resonator including a first conductive member, a second conductive member and a third conductive member, the first conductive member having a split ring shape, the second conductive member being electrically connected with one end of the first conductive member, the third conductive member being electrically connected with the other end of the first conductive member, a split being formed between the second conductive member and the third conductive member, wherein: the second conductive member includes a first portion, a second portion and a third portion, the first portion belonging to a first layer which is a layer substantially parallel to a plane to which the first conductive member belongs, the second portion belonging to a second layer which is a layer which is substantially parallel to the plane and faces the first layer, the third portion electrically connecting the first portion and the second portion with each other; the third conductive member includes a fourth portion, a fifth portion and a sixth portion, the fourth portion belonging to the first layer, the fifth portion belonging to the second layer, the sixth portion electrically connecting the fourth portion and the fifth portion with each other; at least a part of the first portion and at least a part of the fifth portion face each other in a direction substantially perpendicular to the plane; and the split includes a first split, a second split and a third split, the first split being formed between the first portion and the fourth portion, the second split being formed between the second portion and the fifth portion, the third split being formed between the part of the first portion and the part of the fifth portion which face each other in the direction substantially perpendicular to the plane, characterized in that the second conductive member includes a seventh portion and an eighth portion, the seventh portion belonging to a third layer which is a layer which is substantially parallel to the plane and faces the second layer, the eighth portion electrically connecting the second portion and the seventh portion with each other; the third conductive portion includes a ninth portion and a tenth portion, the ninth portion belongings to the third layer, the tenth portion electrically connecting the fifth portion and the ninth portion with each other; the second layer is positioned between the first layer and the third layer; at least a part of the fifth portion and at least a part of the seventh portion face each other in the direction substantially perpendicular to the plane; and the split includes a fourth split and a fifth split, the fourth split being formed between the seventh portion and the ninth portion, the fifth split being formed between the part of the fifth portion and the part of the seventh portion which face each other in the direction substantially perpendicular to the plane. the second conductive member includes a first portion, a second portion and a third portion, the first portion belonging to a first layer which is a layer substantially parallel to a plane to which the first conductive member belongs, the second portion belonging to a second layer which is a layer which is substantially parallel to the plane and faces the first layer, the third portion electrically connecting the first portion and the second portion with each other; the third conductive member includes a fourth portion, a fifth portion and a sixth portion, the fourth portion belonging to the first layer, the fifth portion belonging to the second layer, the sixth portion electrically connecting the fourth portion and the fifth portion with each other; at least a part of the first portion and at least a part of the fifth portion face each other in a direction substantially perpendicular to the plane; and the split includes a first split, a second split and a third split, the first split being formed between the first portion and the fourth portion, the second split being formed between the second portion and the fifth portion, the third split being formed between the part of the first portion and the part of the fifth portion which face each other in the direction substantially perpendicular to the plane, characterized in that the second conductive member includes a seventh portion and an eighth portion, the seventh portion belonging to a third layer which is a layer which is substantially parallel to the plane and faces the second layer, the eighth portion electrically connecting the second portion and the seventh portion with each other; the third conductive portion includes a ninth portion and a tenth portion, the ninth portion belongings to the third layer, the tenth portion electrically connecting the fifth portion and the ninth portion with each other; the second layer is positioned between the first layer and the third layer; at least a part of the fifth portion and at least a part of the seventh portion face each other in the direction substantially perpendicular to the plane; and the split includes a fourth split and a fifth split, the fourth split being formed between the seventh portion and the ninth portion, the fifth split being formed between the part of the fifth portion and the part of the seventh portion which face each other in the direction substantially perpendicular to the plane.