Electronic device including printed circuit board

An electronic device comprising:

• an antenna radiator;
• a printed circuit board (PCB) including:
• a first PCB portion including a plurality of layers, wherein the plurality of layers of the first PCB portion include at least one ground layer electrically connected to a ground of the electronic device,
• a second PCB portion, disposed alongside the first PCB portion, including a plurality of layers, wherein the second PCB portion is electrically insulated from the at least one ground layer of the first PCB portion,
• an opening defined by both a lateral side of an edge portion of the first PCB portion and a lateral side of an edge portion of the second PCB portion, and
• a conductive material, plated on the lateral side of the edge portion of the first PCB portion, electrically connected to the at least one ground layer of the first PCB portion;
• an antenna contact, electrically connected to the antenna radiator, mounted on the second PCB portion;
• and
• impedance circuitry, mounted on a region of the first PCB portion comprising at least a portion of the first PCB portion, electrically connected to the antenna contact,
• wherein the impedance circuitry is electrically connected to the at least one ground layer of the first PCB portion through the conductive material.