Millimeter-wave slot array antenna using SIW and electroforming techniques

In this paper, two types of slot array antennas are introduced and summarized for millimeter-wave applications. The substrate integrated waveguide (SIW) technology is applied to design 45°-inclined series radiating slots for Ka-band. In addition, the design method has been verified by a linear and a planar slot array application. Lastly, the conventional W-band slot array antenna is fabricated using electroforming technique and the high radiation efficiency is obtained from its high fabrication accuracy.