Abstract
In this paper, the potential influencing factors of BGA, such as shape, center distance and misalignment, were investigated and analyzed in the bands from DC to 20GHz by HFSS. In the model, two coplanar waveguide (CW) lines were connected by a half coaxial configuration which formed by five BGA balls. After the simulation, it was found that the transmission performance is significantly influenced by the BGA shape and the center distance between RF BGA and GND BGA. A cylinder-type BGA leads to the best transmission performance. Meanwhile, the simulation result also shows that the decentralization of RF BGA and the height of drum-type BGA are weak influencing factors.
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