Planar High Gain Dielectric Loaded Exponentially Tapered Slot Antenna for Millimeter Wave Wireless Communications

A new and upcoming application is the use of millimeter wave (MmW) antennas for high date rate point-to-point connections to serve gigabit (Gi-Fi) wireless communications. The concept of substrate integrated waveguide (SIW) and exponentially tapered slot (ETS) antenna are used together design a high gain, efficient planar dielectric loaded antenna for MmW Gi-Fi wireless communications at 60 GHz. The SIW is used to feed the antenna and a dielectric loading is utilized in front of the antenna to increase the gain. The dielectric loaded ETS antenna and compact SIW feed are fabricated on a single substrate, resulting in low cost and easy fabrication. The antenna with elliptical shaped dielectric loaded is fabricated using printed circuit board process. The measured gain of the antenna is 11.4 dB, while the radiation efficiency of 96.84 % is obtained at 60 GHz. The measurement results are compared with simulated results.

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