Multi-foldable electronic device including antenna

An electronic device comprising:

• a foldable housing including:
• a first housing part,
• a second housing part, and
• a third housing part,
• wherein each of the first housing part, the second housing part, and the third housing part is rotatably coupled to an adjacent housing part among the first housing part, the second housing part, and the third housing part so as to allow the foldable housing to transition between a folded state and an unfolded state,
• wherein, in the unfolded state, the first housing part, the second housing part, and the third housing part are positioned on substantially the same plane,
• wherein, in the folded state, the second housing part is positioned on the first housing part, and the third housing part is positioned on the second housing part,
• wherein the first housing part includes:
• a first conductive portion configured to operate as an antenna radiator of the electronic device,
• a second conductive portion spaced apart from the first conductive portion, and
• a first non-conductive portion disposed between the first conductive portion and the second conductive portion,
• wherein the second housing part includes:
• a third conductive portion,
• a fourth conductive portion spaced apart from the third conductive portion, and
• a second non-conductive portion disposed between the third conductive portion and the fourth conductive portion,
• wherein, in the folded state, the first conductive portion of the first housing part at least partially faces the third conductive portion of the second housing part,
• wherein the electronic device comprises switching circuitry electrically connected to the third conductive portion and the fourth conductive portion of the second housing part, and
• wherein, while the first conductive portion of the first housing part operates as the antenna radiator in the folded state, the switching circuitry is configured to filter a signal having a frequency corresponding to an operating frequency of the antenna radiator.