Abstract
In this paper a new topology of injection-locked frequency multiplier (ILFM) with high conversion gain and low power consumption is proposed. This new topology is employed to design a multiply-by-2 (×2) ILFM with differential input. The ILFM consists of a double-balanced Gilbert-cell mixer and an injection-locked oscillator (ILO) with only one LC tank. Equations of the ILFM's operation range and conversion gain will be derived mathematically. The circuit was fabricated in 0.18 µm CMOS technology. At a supply voltage of 1.8 V, the measured total power consumption is 6.66 mW. With an input power of 0 dBm, the ILFM has a conversion gain from −0.4 dB to 4.5 dB and its output-frequency range is from 12 GHz to 16.4 GHz.
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