Dipole array antenna

A dipole array antenna, comprising:

• a feeding terminal for feeding a radio-frequency signal;
• a ground terminal;
• a first transmission line electrically connected to the feeding terminal;
• a second transmission line electrically connected to the ground terminal;
• and
• a plurality of antenna units, wherein each of the antenna units comprises:
• a first radiator electrically connected to the first transmission line, and comprising:
• a first arm electrically connected to the first transmission line, and extending toward a first direction;
• and
• a second arm electrically connected to the first transmission line, and extending toward the first direction;
• and
• a second radiator electrically connected to the second transmission line, and comprising:
• a third arm electrically connected to the second transmission line, and extending toward an opposite of the first direction;
• and
• a fourth arm electrically connected to the second transmission line, and extending toward the opposite of the first direction;
• wherein a first current route of the first radiator includes a first direct trace and a first meandering trace, the first direct trace extends from the first transmission line toward at least a quarter of the first arm and the second arm, and the first meandering trace extends from the first direct trace to at most three quarters of the first arm and the second arm;
• wherein a second current route of the second radiator includes a second direct trace and a second meandering trace, the second direct trace extends from the second transmission line toward at least a quarter of the third arm and the fourth arm, and the second meandering trace extends from the second direct trace to at most three quarters of the third arm and the fourth arm.