Design and Fdtd Modeling of Millimeter Wave Antenna for Wireless Sensor Networks

This paper presents the design and finite difference time domain (FDTD) modeling of millimeter wave aperture coupled microstrip antenna that can be realized as a on chip antenna in wireless sensor nodes. At millimeter wave frequency, antenna form factor is very low and hence integration of this antenna with the transceiver components as a single system on-chip, minimizes power consumption and system cost. Offchip antenna increases the size of the sensor node and raises the system cost. The proposed antenna contributes impedance bandwidth of 3 GHz (59 GHz – 62 GHz) and maximum gain of 6.8 dBi. The proposed antenna occupies an area of 1500 μm × 2000 μm on a RT Duroid substrate of dimension 3000 μm × 3000 μm × 1500 μm. Due to very low antenna form factor, the proposed antenna along with the transceiver and sensor components can be integrated into a single system on chip with less system cost for wireless sensor networks.