⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出了一种用于60GHz相控阵接收机的宽带波束赋形器，在40nm数字CMOS工艺中实现，解决了毫米波频段高数据速率通信中的波束赋形问题。
U. Leuven, Leuven, Belgium 3 Vrije Universiteit Brussel, Brussels, Belgium 2 For high-data-rate wireless communication in the 7GHz band around 60GHz, the IEEE 802.15.3c standard [1] provides channels with a 0.88GHz bandwidth for the AV-OFDM mode. For the single-carrier modes, the ECMA 387 standard [2] foresees the possibility of bonding together adjacent channels, yielding higher data-rates. Radios for these 60GHz standards often use phased antenna arrays to relax the link budget. A phased-array receiver needs a variable phase shift on each antenna path and a combiner that sums the signals from the individual paths after phase shifting. The beamforming circuitry presented here handles 4 paths. It can operate both with one 0.88GHz channel and with bonding of two such channels. Phase shifts are realized with a resolution better than 20°.
The TIA has the same input stage as the current amplifier, but low output impedance by applying resistive shunt feedback (via Rfa-b) at the output of source followers M3a-b.
Kuba Raczkowski1,2, Walter De Raedt1, Bart Nauwelaers2, Piet Wambacq1,3 1 IMEC, Heverlee, Belgium K