Abstract
A 280 GHz broadband balanced frequency quadrupler chain is presented. The quadrupler can be used to generate as high as 200 μW over a −3 dB bandwidth of 275–285 GHz, which enables emerging applications in sub-millimetre-wave communications and remote sensing. The circuit is designed and fabricated in a 45 nm silicon on insulator (SOI) CMOS technology and occupies an area of 0.21 mm2 including the pads. The chip consumes 85 mA dc current from a 1.1 V supply.
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