Quadrature oscillator connection and differential feed of a patch antenna on the thick resin in a 60GHz band silicon chip

In this paper, we have discussed two topics. One is the connection of a quadrature oscillator chip with a 2×2 circularly-polarized patch array on this thick resin of a 60GHz band silicon chip through coaxial-line structures with hole opening. The other is the differential feed of a patch antenna, which will be suitable for the connection with a silicon CMOS chip.