Antenna device

An antenna device, comprising:

• a plurality of antennae disposed in parallel with each other in a first direction, wherein the plurality of antennae comprise:
• a first antenna patch, disposed on a first dielectric layer among a plurality of dielectric layers stacked in a third direction that is perpendicular to the first direction, and configured to transmit and receive a radio frequency (RF) signal in a first frequency bandwidth,
• a second antenna patch, disposed on a second dielectric layer among the plurality of dielectric layers, and coupled to the first antenna patch,
• a third antenna patch, disposed on a third dielectric layer among the plurality of dielectric layers, and coupled to the second antenna patch,
• a fourth antenna patch, disposed on a fourth dielectric layer among the plurality of dielectric layers, different from the third dielectric layer, and configured to transmit and receive an RF signal in a second frequency bandwidth, and
• a first feed via and a second feed via configured to penetrate at least one of the plurality of dielectric layers, and configured to apply an electrical signal to the first antenna patch,
• wherein the plurality of antennae include a first antenna and a second antenna, and respective positions of the second feed via, a third feed via, and a fourth feed via with respect to the first feed via of the first antenna are different from respective positions of the second feed via, the third feed via, and the fourth feed via with respect to the first feed via of the second antenna.