Antenna module having multilayer impedance converter, and electronic device comprising same

An electronic device having an antenna module, the electronic device comprising:

• a transceiver circuit disposed in the antenna module including a multi-layer substrate;
• a first transmission line disposed on a first layer of the antenna module and configured to be electrically connected to the transceiver circuit;
• a second transmission line disposed on a second layer of the antenna module and configured to be electrically connected to an antenna;
• and
• a vertical via configured to vertically connect the first transmission line and the second transmission line,
• wherein the first transmission line connected to the vertical via comprises a first impedance transformer configured to have a first width W1 and a first length L1, and
• the second transmission line connected to the vertical via comprises a second impedance transformer configured to have a second width W2 and a second length L2.