Abstract
A novel divide-by-4 injection-locked frequency divider (ILFD) is provide and was manufacture in the 0.18 μm 1P6M CMOS from tsmc. Conventional harmonic mixer divide-by-4 ILFD has limited locking range; this letter shows a wide locking range divide-by-4 ILFD designed with linear mixer technique. At incident power of zero dBm and at the drain-source bias of 1V, the locking range of the divide-by-4 is 6.8GHz. After calculating, the percentage is 63.5% from the incident frequency 7.3 GHz to 14.1 GHz. The core power consumption under the injection-locked condition is 10∼15mW. The oscillation frequency of free-running is 2.6GHz. The die dimension is 0.929 ×0.84 mm2. The provided ILFD is designed from a cross-coupled voltage-controlled oscillator (VCO).
Published Version
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