Empty Substrate Integrated Waveguide Antenna Array

An Empty Substrate Integrated Waveguide (ESIW)antenna array concept is presented. The ESIW provides an array feed network which offers low loss, low cost, and low profile, in addition to being able to integrate the antenna with other electronics into a single printed circuit board. The antenna is a V-band (60 GHz)4×4 broadside slot-fed Grid Antenna Array. The design of the integrated antenna and feed network is presented, and performance is estimated by simulation.