Printed Circuit Board Materials for Microwave Designs in Automotive Applications

摘要

In recent years, in the microwave industry once dominated by defense and aerospace, a market has expanded dramatically to embrace telecommunications and other high volume commercial applications. These changes have had a great influence on the development of microwave materials and how they are processed. The automotive industry is increasingly using microwave technology, as cars and other vehicles adopt more and more wireless devices. From satellite radio and television, through automatic tolling and the transmission of traffic information, to parking aids and adaptive cruise control, modern vehicles are becoming ever more packed with wireless technology, with frequencies varying from 1 to 80 GHz. This article examines the impact of this trend on printed circuit board materials, the demands made on microwave substrates in various automotive applications, and how material selection varies depending on the specific requirements of individual designs.