A 50 GHz cross-coupled complimentary differential LC VCO is presented in this paper. The VCO is implemented in 28nm bulk CMOS technology node and occupies an area of 0.007mm 2 excluding the pads. The circuit draws 5.2mA of current from a 1.0V supply and delivers a zero to peak output swing of 310mV to 360mV to the output buffer. It achieves a worst case phase noise of-113.2dBc/Hz at 10MHz offset leading to a figure of merit (FOM) higher than 182.3dBc/Hz at 50GHz. By employing a differential tuning mechanism based on a varactor and switched capacitors the VCO can be tuned from 47.4GHz to 52.7GHz corresponding to a tuning range of 10.5%. Furthermore, through a tunable gate bias for the NMOS core transistors, the power consumption of the VCO can be adjusted depending on the load of the tank. This way a power efficient design is obtained.
This paper presents a 50GHz wireless receiver for 10Gbps on-off keying (OOK) modulated signals designed in 28nm CMOS. An in-depth analysis indicates that the energy detector has a substantial impact on the receiver performance and should be properly taken into account in the link budget. The work covers the design of a novel 50GHz broadband low noise amplifier and its co-design with envelope detector and limiting amplifier. The extracted simulation results show that the receiver is able to detect a 10Gbps signal at 10cm distance with a BER of 10-12 while consuming only 70mW from 1V power supply.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.