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A 10.5-GHz divide-by-3 (1/3) injection-locked frequency divider (ILFD) with an internal Voltage Controlled Oscillator (VCO) that can provide extra locking range is presented. A phase tuner implemented on an asymmetric inductor is proposed to increase the locking range through even-harmonic phase tuning in addition to those achieved by other techniques. With a fixed internal injection signal power...
A new divide-by-2 injection locked frequency divider (ILFD) with dual-injection technique is proposed. The proposed ILFD is developed with divide-by-2 current mode logic (CML) divider, which is connected at the output of the ILFD to achieve constant output amplitude. Fabricated in 0.18-μm BiCMOS process, the proposed divide-by-2 ILFD with dual-injection improves the locking range through simultaneous...
Significant phase-noise improvement is demonstrated using a self-injection technique on a fully integrated 0.18-μm CMOS divide-by-3 (1/3) injection-locked frequency divider (ILFD). The self-injection is realized with an odd-to-even harmonic converter followed by a feedback-amplifier. The self-injection 1/3 ILFD shows superior injection efficiency due to the increased self-injection signal which results...
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