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A 60-GHz injection-locked frequency divider (ILFD) fabricated in 65nm CMOS and operating at 1.2V consumes 1.65mW excluding buffers and biasing circuits, and has a measured locking range of 48.5-62.9GHz (25.9%) with 0dBm input power. The core ILFD area is 0.0157mm2. The large locking range is attributed to the use of the multi-order LC oscillator topology.
The first 50-GHz to 110-GHz downconverter in 45-nm digital CMOS is presented along with the mm-wave characterization of AMOS varactors, inductors and transformers. The varactor Q is higher than 6, up to 94 GHz. The downconverter gain is 15 dB at 111GHz, and is employed as a broadband test vehicle to characterize the optimal noise figure current density (JOPT) of 45-nm MOSFETs in the 50 GHz to 110...
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