A balanced 150–240 GHz amplifier MMIC using airbridge transmission lines
A balanced 150–240 GHz amplifier MMIC using airbridge transmission lines
复制标题
使用空中桥传输线的平衡 150–240 GHz 放大器 MMIC
DOI：
--
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
I. Kallfass
中科院分区：
文献类型：
--
作者：
J. Langst;S. Diebold;H. Massler;A. Tessmann;A. Leuther;T. Zwick;I. Kallfass
采用35nm栅长变形高电子迁移率晶体管（mHEMT）技术，采用气桥微带（AirMS）传输线，研制了一种频率范围为150 ~ 240ghz的紧凑平衡放大单片毫米波集成电路（MMIC）。平衡设计的混合耦合器采用气桥叠加耦合线实现。平衡式三级级联放大器在150 ~ 240 GHz范围内实现15 dB以上的小信号增益，在210 ~ 230 GHz范围内实现23 dB以上的小信号增益。在后一频率范围内，测量增益曲线的变化小于0.8 dB。由于采用了平衡设计，在227 GHz范围内输入和输出反射均低于-12 dB，在整个频率范围内均低于-6 dB。
A compact balanced amplifier monolithic milli-meter-wave integrated circuit (MMIC) for the frequency range from 150 to 240 GHz is developed using airbridge microstrip (AirMS) transmission lines in a 35nm gate-length metamorphic high electron mobility transistor (mHEMT) technology. The hybrid couplers for the balanced design are realized using airbridge-stacked coupled lines. The balanced three-stage cascode amplifier achieves a small-signal gain of more than 15 dB between 150 and 240 GHz, from 210 to 230 GHz even more than 23 dB. In the latter frequency range the variation of the measured gain curve is less than 0.8 dB. Due to the balanced design, the input and output reflections are lower than -12 dB up to 227 GHz, and lower than -6 dB in the whole frequency range.