An off-chip antenna for mm-wave applications

A multi-layer PCB technology incorporating Teflon-based laminates has been used to implement a horn-like antenna for millimeter-wave applications. Although the antenna has a better-than-10-dB return loss for the whole standard 60-GHz band, i. e. 57 GHz - 66 GHz, its radiation pattern changes drastically at the higher-band frequencies. Moreover, due to the very low loss material used for the antenna implementation, the interconnect loss is low when compared to other competitive technologies.