A 2×40Gb/s Ultra-Wideband 131–173GHz Dual Receiver for Point-to-Point Communication Systems with NF of 5.7dB in RFSOI

This paper presents an ultra-wideband 131–173 GHz dual-channel receiver with a measured gain of 22–25 dB, a measured NF of 5.7–8.4 dB, and an IP1dB of -30 ± 2 dBm, implemented in Global Foundries 45RFSOI technology. The chip contains a ×6 LO multiplier network and high-power buffers to drive high-linearity active mixers. An IF of 26–34 GHz is chosen for high image rejection. The chip achieves a data rate of 2×40 Gb/s for a channel bandwidth of 8 GHz using 32QAM modulation. Application areas are for point-to-point (backhaul) communication systems employing V and H polarization for 2×2 polarization MIMO systems.