180-GHz Broadside Radiation Bond-Wire Antenna for Short-Range Wireless Communication

Abstract

A technique for realizing an efficient broadside radiation bond-wire antenna for short-range wireless communication is demonstrated. The bond wire forming the antenna is located around 375 mu m (similar to lambda/4 at 180 GHz) above the ground plane on a printed circuit board (PCB) for constructive interference of reflected waves from the PCB and that radiated from the antenna. At 178.3 GHz, a gold bond wire shaped in a half loop and terminated on a bond pad of a neighboring chip 975-mu m away exhibits a measured peak gain of 2.5 dB at the phi = 90 degrees plane. The antenna also exhibits >20 GHz measured -10-dB vertical bar S-11 vertical bar bandwidth. The simulated efficiency is 52%.