New silicon CMOS processes developed primarily for the burgeoning wireless networking market offer significant promise as a vehicle for the implementation of highly integrated receivers, especially at the lower end of the frequency range proposed for the Square Kilometre Array (SKA). An RF-CMOS ‘Receiver-on-a-Chip’ is being developed as part of an Australia Telescope program looking at technologies associated with the SKA. The receiver covers the frequency range 500–1700 MHz, with instantaneous IF bandwidth of 500 MHz and, on simulation, yields an input noise temperature of < 50="" k="" at="" mid-band.="" the="" receiver="" will="" contain="" all="" active="" circuitry="" (lna,="" bandpass="" filter,="" quadrature="" mixer,="" anti-aliasing="" filter,="" digitiser="" and="" serialiser)="" on="" one="" 0.18="" μm="" rf-cmos="" integrated="" circuit.="" this="" paper="" outlines="" receiver="" front-end="" development="" work="" undertaken="" to="" date,="" including="" design="" and="" simulation="" of="" an="" lna="" using="" noise="" cancelling="" techniques="" to="" achieve="" a="" wideband="" input-power-match="" with="" little="" noise="">
Keywords astronomy - CMOS LNA - integrated receiver - radio-on-chip - RFIC - Square Kilometre Array - system-on-chip