High Power High Efficiency 475-520 GHz Source Based on Discrete Schottky Diodes

A 500 GHz source based on discrete Schottky diodes technology is reported in this work. The high frequency part developed by ACST consists of a high power and high efficiency doublet at 135-160 GHz and a tripler at 475-540 GHz. Both multipliers feature a single chip per module and do not use any power combining techniques. The 150 GHz and 500 GHz multipliers are able to handle more than 400 mW and 100 mW input power and provide more than 140 mW and 20 mW output power, respectively. This is the most powerful 500 GHz source reported based on discrete Schottky diodes without using power combining.