D-Band Radio-on-Glass Modules for Spectrally-Efficient FD & FDD Multi-Kilometer Wireless Backhaul Links

This paper presents a modular, spectrally-efficient D-Band backhaul communication system for full-duplex and frequency-division duplex deployment. The RF modules leverage three highly-integrated D-Band RFICs. The transmitter, receiver & power amplifier chipsets are flip-chipped onto a glass platform for compact and low-loss integration. The transmitter module achieves a saturated output power of 18 dBm and OIP3 of 28 dBm, while the receiver module features a noise figure of 8 dB and an IIP3 of -12 dBm. The point-to-point link is capable of bi-directional data rates above 2×32 Gb/s with 256-QAM modulation at distances reaching 200 meters and supports multi-kilometer wireless links with 16-QAM at 4 GBaud/s.