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‘Key’ 5G building blocks launched by imec

Two building blocks launched by Belgian research centre imec are said to be key for future 5G applications. The first is a fast and compact successive approximation A/D converter for consumer electronics applications operating at frequencies of less than 6GHz. The other blocks is a 60GHz front-end with RF phase shifting and on-chip transmit-receive switching. This block is intended to use in 5G fixed wireless access and small cell backhaul applications.

Wim Van Thillo, imec’s programme director for perceptive systems, said: “Our portfolio includes record-breaking A/D converters, reconfigurable low-noise frequency synthesisers, millimetre wave phased array transceivers, antenna modules and more. These building blocks show state-of-the art performance, excel in low-power operation and are low cost by leveraging scaled CMOS technologies.”

The A/D converter, pictured, which has core area of 350 x 325µm, is fabricated using a 16nm CMOS process. Dynamic power consumption is said to be 3.6mW at 300Msample/s, with a signal to noise and distortion ratio of 70.2dB at 204Msample/s.

Meanwhile, the 60GHz RF front-end features eight way calibration-free beamforming to support a large number of antennas. This, says imec, makes it attractive for fixed wireless access and small cell backhaul applications. On-chip transmit-receive switching allows the antenna array to be shared. With an area of 9.6mm2, the chip is targeted at a 28nm CMOS process. Power consumption is said to be 231mW in receive and 508mW in transmit mode.

Author
Graham Pitcher

Source:  www.newelectronics.co.uk