Antenna apparatus and electronic device including the same

An antenna apparatus comprising:

• a first conductive structure including a first electrical contact;
• a second conductive structure spaced apart from the first conductive structure in an opposite direction of a first direction and including a second electrical contact;
• and
• a printed circuit board (PCB) coupled to the first conductive structure and the second conductive structure, on which a matching circuit, a near field communication (NFC) chip, a first contact member and a second contact member are disposed, the matching circuit including a first feeding end connected to the first contact member and a second feeding end connected to the second contact member,
• wherein the NFC chip includes a first connection terminal and a second connection terminal,
• the first connection terminal and the second connection terminal together provide a differential excitation current,
• the first connection terminal is connected to the first feeding end through the matching circuit,
• the second connection terminal is connected to the second feeding end through the matching circuit,
• when the PCB is coupled to the first conductive structure and the second conductive structure, a current input and output to the NFC chip through the first connection terminal is input and output to the first conductive structure through the first electrical contact, and a current input and output to the NFC chip through the second connection terminal is input and output to the second conductive structure through the second electrical contact,
• a current corresponding to an NFC frequency is formed along a loop, and
• the loop is formed across the first conductive structure and the second conductive structure.

An electronic device comprising:

• a radiator including a first electrical contact and a second electrical contact;
• an antenna apparatus including a printed circuit board (PCB) coupled to the radiator, on which a matching circuit and a near field signal exchange chip are disposed, the matching circuit including a first feeding end and a second feeding end, the first feeding end being connected to the first electrical contact, and the second feeding end being connected to the second electrical contact;
• and
• a first conductive structure, an edge portion of which forms a portion of the radiator,
• wherein the first electrical contact is included in the first conductive structure, and the second electrical contact is included in a second conductive structure spaced apart from the edge portion of the first conductive structure,
• the PCB includes a first ground point and a second ground point, the first ground point being reactively coupled to the first feeding end and the second ground point being reactively coupled to the second feeding end,
• the near field signal exchange chip includes a first connection terminal and a second connection terminal,
• the first connection terminal and the second connection terminal together provide a differential excitation current,
• the first connection terminal is connected to the first feeding end through the matching circuit,
• the second connection terminal is connected to the second feeding end through the matching circuit, and
• a current corresponding to a near field signal exchange frequency is formed within the first conductive structure and the second conductive structure.