Giese, MalteMalteGieseVehring, SönkeSönkeVehringBöck, GeorgGeorgBöckJacob, ArneArneJacob2019-11-222019-11-222017-08-28Frequenz 9-10 (71): 463-472 (2017-08-28)http://hdl.handle.net/11420/3858This paper presents requirements and front-end solutions for low-cost communication systems with data rates of 100 Gbit/s. Link budget analyses in different mass-market applications are conducted for that purpose. It proposes an implementation of the front-end as an active antenna array with support for beam steering and polarization multiplexing over the full W-band. The critical system components are investigated and presented. This applies to a transformer coupled power amplifier (PA) in 40 nm bulk CMOS. It shows saturated output power of more than 10 dBm and power-added-efficiency of more than 10 % over the full W-band. Furthermore, the performance of microstrip-to-waveguide transitions is shown exemplarily as an important part of the active antenna as it interfaces active circuitry and antenna in a polymer-and-metal process. The transition test design shows less than 0.9 dB insertion loss and more than 12 dB return loss for the differential transition over the full W-band.en2191-634920179-10463472antenna arraysCMOS integrated circuitsmillimeter wave communicationpolarization multiplexpower amplifiersstereolithographyJournal Article10.1515/freq-2017-0162Journal Article