A 77GHz Antenna-in-Package with Low-Cost Solution for mm Wave System Integration

摘要

This work provides Antenna in package (AiP) implemented on Advanced single sided substrates (aS³ package) , which utilizes low-cost substrate and low-cost assembly process. The dipole antenna implemented on aS³ package results in a peak gain of 5 dBi at operating frequency band. The return loss of <; - 10 dB bandwidth is from 65 to 81 GHz. The resonant rectangular series-fed patch array implemented on aS³ package results in a peak gain of 8 dBi at operating frequency band. The return loss of <; - 10 dB bandwidth is from 76 to 81 GHz. The antenna performance of antenna on aS³ package meets the requirements of 77 GHz automotive radar systems. This work also discuss with the impact of fabrication inaccuracies on the antenna bandwidth and gain. For 77 GHz automotive radar application, the corner analysis of process variation supports correct antenna performance and a short time to market.