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This letter proposes a three-resonance CMOS LC-tank implant locked frequency multiplier (ILFM) fabricated in the 0.18 μm CMOS process and describes the circuit design, operation principle and measurement results of the ILFM. The ILFM circuit is composed of a RLC three-resonance first-harmonic implant-locked oscillator (ILO), a board-band frequency multiplier with differential-injection ports. The...
This article studies the RF performance of a wide locking range divide-by-3 injection-locked frequency divider (ILFD) in CMOS process. The ILFD circuit bases on MOS switch cross-coupled oscillator and uses dual-resonance RLC resonator. The power consumption of the ILFD core is 5.6 mW and the locking range is from 6.7 to 11.6 GHz (53.6%) at injection power Pinj = 0 dBm. Measured tuning range depends...
This letter proposes a dual-resonance CMOS LC-tank injection locked frequency doubler (ILFD) fabricated in the 0.18 μm CMOS process and describes the circuit design, operation principle and measurement results of the ILFD. The ILFD circuit is composed of a RLC dual-resonance first-harmonic injection-locked oscillator (ILO), a wide-band frequency doubler with differential-injection ports. The ILFD...
This letter proposes a LC-resonance CMOS quadrature voltage controlled oscillator (QVCO) uses in wireless communications and measuring blood glucose applications fabricated in the 0.18 µm UMC CMOS process and describes the circuit design, working principle and measured results of the QVCO. The QVCO circuit is composed of a LC resonance, PMOS cross-coupled, bias resister, and DC block of capacitor...
This letter proposes a UMC CMOS low power consumptions voltage control oscillator fabricated in the 0.18 µm UMC CMOS process and describes the circuit design, operation principle and measurement results of the low power consumptions voltage control oscillator. The low power consumptions voltage control oscillator circuit is composed of a LC dual-resonance. The low power consumptions voltage control...
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