The purpose of this dissertation is to develop microwave and millimeter-wave baluns and their applications using commercial standard GaAs based HEMT and Si based CMOS MMIC processes.

• 本论文研究方向是著重于使用商用标准矽与砷化镓单晶制程来设计微波与毫米波段之平衡不平衡转换器及其在混频器和相移器之应用。