120 GHz On-Board Chip-to-Chip Wireless Link Using Y-Shaped Open-Ended Microstrip Antenna

Abstract

A 120 GHz on-board chip-to-chip wireless link is presented. A printed circuit board-based, highly directive Y-shaped open-ended microstrip antenna that radiates electric fields perpendicular to the ground plane is used. To realize a real chip-to-chip environment, the antenna is connected to the radio frequency integrated circuit (RFIC) using a bond-wire. The distance was set to 20 and 50 mm. The measured peak S 21 for the 20 and 50 mm wireless link was –28.7 and –35.6 dB. The measured 3 dB bandwidth was 22 GHz for the 20 mm case and 20 GHz for the 50 mm case.