Abstract
AbstractA compact K/Ka‐Band dipole antenna element with ball grid array packaging is proposed. The antenna is divided into two parts, one is a cuboid antenna element fabricated on a FR4 printed circuit board, and the other is a grounded coplanar waveguide feed line fabricated on a motherboard. To minimize the size of the antenna element, we use three‐dimensional structure to design the antenna element. The dipole patches are fabricated on the top layer of the antenna element, and the ball grid array is on the bottom layer of the antenna element. Plated through holes connect solder balls and dipole patches. Finally, the antenna element is mounted on the motherboard. We designed, manufactured and measured the antenna prototypes. The details of the antenna design and the measurement results are presented and discussed.
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