A structure comprising: a first resist layer, a metallic layer, a first prepreg layer, a core layer, a second conductive layer, a second prepreg layer, a first conductive layer, and a second resist layer in that buildup sequence, a first conductor that extends in a second direction; a second conductor that faces the first conductor in a first direction and that extends along the second direction; a third conductor that extends along a first plane, and that is configured to capacitively connect the first conductor and the second conductor, wherein the first conductive layer and the second conductive layer are conductive layers included in the third conductor; a fourth conductor that is configured to be electrically connected to the first conductor and the second conductor, and that extends parallel to the first plane; and a feeding line that is connected to the third conductor, wherein the feeding line includes a first constituting part that extends along the first direction, and a second constituent part that extends along the second direction, and the first constituting part is positioned between both ends of the fourth conductor in a third direction, wherein the first, second and third directions are perpendicular to each other, and the first plane is a plane parallel to the first and third directions, the metallic layer is a conductive layer and includes the fourth conductor and the first constituting part of the feeding line, and the first prepreg layer, the core layer, and the second prepreg layer are dielectric body layers that constitute a base, wherein the structure further comprises a mounting board that faces the fourth conductor with a distance therebetween, wherein the first constituting part faces the mounting board with a distance therebetween. a first resist layer, a metallic layer, a first prepreg layer, a core layer, a second conductive layer, a second prepreg layer, a first conductive layer, and a second resist layer in that buildup sequence, a first conductor that extends in a second direction; a second conductor that faces the first conductor in a first direction and that extends along the second direction; a third conductor that extends along a first plane, and that is configured to capacitively connect the first conductor and the second conductor, wherein the first conductive layer and the second conductive layer are conductive layers included in the third conductor; a fourth conductor that is configured to be electrically connected to the first conductor and the second conductor, and that extends parallel to the first plane; and a feeding line that is connected to the third conductor, wherein the feeding line includes a first constituting part that extends along the first direction, and a second constituent part that extends along the second direction, and a first constituting part that extends along the first direction, and a second constituent part that extends along the second direction, and the first constituting part is positioned between both ends of the fourth conductor in a third direction, wherein the first, second and third directions are perpendicular to each other, and the first plane is a plane parallel to the first and third directions, the metallic layer is a conductive layer and includes the fourth conductor and the first constituting part of the feeding line, and the first prepreg layer, the core layer, and the second prepreg layer are dielectric body layers that constitute a base, wherein the structure further comprises a mounting board that faces the fourth conductor with a distance therebetween, wherein the first constituting part faces the mounting board with a distance therebetween.