3D-Antenna-in-Package Solution for Microwave Wireless Sensor Network Nodes

A three-dimensional packaging solution is introduced for wireless sensor network nodes at microwave frequencies. The package has a cubic geometry with radiating antennas on its surrounding faces. The cube which is called e-CUBE is designed in such a way that its radiation pattern resembles that of a simple dipole. The antenna is designed in a modular way and the final structure has a return loss better than 10 dB and a dipole-shape pattern at 17.2 GHz. Moreover, the measurement and simulation results show very good agreement.