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Injection locking

About: Injection locking is a research topic. Over the lifetime, 4567 publications have been published within this topic receiving 60942 citations.


Papers
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Proceedings ArticleDOI
S. Kudszus1, W.H. Haydl, M. Neumann, A. Bangert, Axel Hulsmann 
07 Jun 1998
TL;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

Patent
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

Journal ArticleDOI
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

Proceedings ArticleDOI
17 Jun 2012
TL;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

Journal ArticleDOI
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


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202333
202276
2021107
2020145
2019169
2018146