Topic
Injection locking
About: Injection locking is a research topic. Over the lifetime, 4567 publications have been published within this topic receiving 60942 citations.
Papers published on a yearly basis
Papers
More filters
••
07 Jun 1998TL;DR: In this paper, a coplanar subharmonically injection-locked VCO for 94 GHz with a tuning range of 4.5 GHz was developed, using 0.15 /spl mu/m AlGaAs-InGaA-GaAs PM-HEMTs.
Abstract: A coplanar subharmonically injection locked VCO for 94 GHz with a tuning range of 4.5 GHz was developed, using 0.15 /spl mu/m AlGaAs-InGaAs-GaAs PM-HEMTs. A phase noise of -71 dBc/Hz at 1 MHz offset from the carrier was measured for the unlocked VCO. Using 3/sup rd/ subharmonic injection locking, a phase noise of -106 dBc/Hz at 1 MHz offset (-91 dBc/Hz at 100 KHz offset) for the locked VCO with a locking range of 1 GHz was achieved.
19 citations
•
14 Jan 2005
TL;DR: In this article, an RF integrated circuit comprising a frequency synthesizer and a QAM modulator for modulating a baseband signal of frequency FBB, the frequency synthesizers supplying to the QAM the output signal of an auxiliary signal with frequency F1 adjustable with a frequency step ΔF1, for forming a carrier signal of the RF modulator.
Abstract: The present invention relates to an RF integrated circuit comprising a frequency synthesizer and a QAM modulator for modulating a baseband signal of frequency FBB, the frequency synthesizer supplying to the QAM modulator an output signal of frequency F1 adjustable with a frequency step ΔF1, for forming a carrier signal of the QAM modulator. According to the present invention, the frequency synthesizer is a Vernier effect frequency synthesizer comprising an auxiliary frequency synthesizer supplying an auxiliary signal of frequency F2 adjustable with a frequency step ΔF2 and a main frequency synthesizer having a phase-locked loop bandwidth at least two times higher than the frequency step ΔF2 of the auxiliary signal.
19 citations
••
TL;DR: This paper presents a multifunctional circuit realizing the functions of oscillation, mixing, amplification, and frequency multiplication at 5 GHz, which combines both the injection-locking and mixing processes.
Abstract: This paper presents a multifunctional circuit realizing the functions of oscillation, mixing, amplification, and frequency multiplication at 5 GHz. A theoretical and experimental description of the circuit is given. The proposed circuit, which combines both the injection-locking and mixing processes, uses only one port where both the RF/intermediate frequency signal and the injection signal (IS) are applied. The IS, which is used to stabilize the oscillation, is at a subharmonic of the oscillation frequency (omegaosc/4) having a power level as low as -50 dBm. Calculations of the phase noise and measurements of the mixing properties are reported which indicate a noise improvement, and a high up-conversion gain. The implementation of the circuit exhibits an up-conversion gain of 14 dB, a phase noise of -110 dBc/Hz at 100-kHz offset, a dB of -15 dBm, a third-order intercept point of -2 dBm, and a power consumption of 35 mW. Calculated and measured results are in good agreement for all cases, emphasizing the relevance of the proposed circuit.
19 citations
••
17 Jun 2012TL;DR: In this article, a subharmonically injection-locked quadrature oscillator is demonstrated in a 40nm low-power (LP) digital CMOS technology and a large locking range (10GHz) is achieved using transformer-coupled resonators.
Abstract: A mm-wave subharmonically injection-locked quadrature oscillator is demonstrated in a 40nm low-power (LP) digital CMOS technology. A large locking range (10GHz), tunable over the 52–66GHz band, is achieved using transformer-coupled resonators. A simple calibration scheme is proposed that only relies on a relative power measurement of the oscillator output signal. The wide locking range, the wide tunability and the simple calibration scheme make this injection-locked quadrature oscillator design suitable for frequency synthesis in mm-wave CMOS communication systems.
19 citations
••
TL;DR: The experimental results demonstrate the possibility to obtain higher single-frequency powers in the injected cw ring dyelaser, in good agreement with a theoretical analysis previously proposed.
Abstract: We present the first reported experimental study of the properties and characteristics of the injected cw ring dye laser together with a new method of injection locking for cw sources. The injection thresholds and the intracavity powers below and above threshold have been investigated as a function of the pump power, the injecting radiation power, and the frequency detuning. The experimental results, in good agreement with a theoretical analysis previously proposed, demonstrate the possibility to obtain higher single-frequency powers.
19 citations