Focused source formation using a micro disc-like patch antenna array for THz CMOS transceiver applications

The paper presents a scheme to generate a focused THz source using a disc-like antenna array for THz CMOS-based transceiver application. The disk-like antenna array is fabricated by pressing a steel ball onto a flexible flat antenna array placed on a hollow silicon mold to form a hemispherical shell disk. Simulation results show that the receiving power from the center of the disc-like patch antenna array can improve the ratio of the receiving power to the incident one from 0.064 to 0.101 in comparison with that from the flat antenna array. About 1–2 dB receiving power difference measured experimentally has also validated the source focusing capability via the scheme.