摘要
The structure and microwave characteristics of low-voltage SiGe power HBTs are given.With this structure,the device can operate in a low-voltage and high-current state.By using an interdigital emitter strip layout and the operating voltage ranging from 3 to 4V,the output power in Class C operation can reach 1 65W at 1GHz,with the gain of 8dB.The highest collector efficiency is 67 8% under 3V.
给出了低电压微波 Si Ge功率异质结双极型晶体管 (HBT)的器件结构和测试结果 .器件结构适于低压大电流状态下应用 .采用了梳状发射极条的横向版图设计 ,其工作电压为 3— 4V.在 C类工作状态 ,1GHz的工作频率下 ,输出功率可以达到 1.6 5 W,具有 8d B的增益 . 3V时可以达到的最高收集极效率为 6 7.8% .
基金
国家自然科学基金资助项目 (批准号 :6 9836 0 2 0 ,6 9476 0 39)~~
