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An Eight-Element 140-GHz Wafer-Scale IF Beamforming Phased-Array Receiver With 6
一款140 GHz八元素晶圆级中频波束成形相控阵接收器，具有低噪声和高数据速率。
7 dB噪声系数，27-28 dB阵列电子增益，139-155 GHz RF前端带宽，9.5-12.5 GHz IF带宽
140 GHz相控阵接收器中频波束成形晶圆级高数据速率
▸5位相位和4位增益控制的中频波束成形
▸共享LO乘法链和分配网络
▸高效率和电磁耦合的差分片上天线馈电
Abstract
This article presents a 140-GHz eight-element
wafer-scale phased-array receiver based on intermediate-
frequency (IF) beamforming with 5-bit phase and 4-bit gain
control. The chip contains a shared local-oscillator (LO) multi-
plier chain and distribution network, active combiners, LC -based
combiners, digitally tuned attenuators, for a near system-on-
chip solution. A differential on-chip antenna feed (on the top
metal) is electromagnetically (EM) coupled to a high-efficiency
patch antenna (gold