Topic
Injection locking
About: Injection locking is a research topic. Over the lifetime, 4567 publications have been published within this topic receiving 60942 citations.
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01 Sep 2006
TL;DR: This paper describes a successful experiment of 1.56-GHz on-chip LC-tank resonant clock oscillator, which directly drives 2times896 flip-flops, without intermediate buffers, which results in 57 % lower clock power and 15-30 % lower total chip power compared to the conventional clocking strategy implemented on the same chip.
Abstract: This paper describes a successful experiment of 1.56-GHz on-chip LC-tank resonant clock oscillator, which directly drives 2times896 flip-flops, without intermediate buffers. Detailed power measurements of a test-chip in 130-nm CMOS technology show that the proposed resonant clocking technique results in 57 % lower clock power and 15-30 % lower total chip power compared to the conventional clocking strategy implemented on the same chip. Furthermore, clock jitter measurements show a worst-case peak-to-peak jitter of 28.4 ps (or 14.5 ps using injection locking) across 0-to-80 % data activity in flip-flops and the data-path logic
31 citations
TL;DR: In this article, a two-stage differential complementary metal-oxide-semiconductor (CMOS) ring oscillator and a divide-by-two ILFD is proposed to provide a wide locking range.
Abstract: This letter proposes a wide locking range injection locked frequency divider (ILFD) and describes the operation principle of the ILFD. The circuit is made of a dual band two-stage differential complementary metal-oxide-semiconductor (CMOS) ring oscillator and is based on MOS switches directly coupled to the differential outputs of the ring oscillator. The divide-by-two ILFD can provide wide locking range and the measurement results show that at the supply voltage of 1.8-V, the divider free-running frequencies are 1.36GHz and 2.3GHz, and at the incident power of 0dBm, the locking range is about 1.75GHz from the incident frequency 1.9GHz to 3.65GHz at low band and 2.55GHz from 2.95GHz to 5.5GHz at high band
31 citations
TL;DR: In this paper, the authors studied magnetization dynamics in spin-transfer devices subject to DC and microwave injected currents and showed that phase locking is hysteretic at sufficiently large ac currents.
Abstract: We study magnetization dynamics in spin-transfer devices subject to DC and microwave injected currents. When the frequency of the injected current is sufficiently close to the self-oscillation frequency of the device, phase-locking occurs. This phenomenon is theoretically studied by using Landau-Lifshitz equation with Slonczewski spin-torque term. By exploiting separation of time scales and using averaging technique, we derive equations which are applicable to the study of phase-locking for arbitrary large magnetization motion. The stability diagram in the (detuning, ac current)-plane is determined and it is shown that phase locking is hysteretic at sufficiently large ac currents.
31 citations
TL;DR: The influence of optical injection from the two master lasers to one slave laser is investigated, and it is found that the dual synchronization is observed when the injection locking is achieved between either of the master lasers and the slave laser.
Abstract: We experimentally demonstrate the dual synchronization of chaos in two pairs of ${\mathrm{N}\mathrm{d}:\mathrm{Y}\mathrm{V}\mathrm{O}}_{4}$ microchip lasers in a one-way coupling configuration over one transmission channel. Dual synchronization is achieved when the optical frequency is matched between the corresponding pairs of lasers by using injection locking. We investigate the influence of optical injection from the two master lasers to one slave laser, and found that the dual synchronization is observed when the injection locking is achieved between either of the master lasers and the slave laser. Under the condition of the injection locking between both of the master lasers and the slave laser, the injection locking is alternately achieved and the accuracy of dual synchronization is degraded. We also confirm these results by numerical calculation.
31 citations
01 Aug 1998
TL;DR: In this article, the performance of active antenna oscillator arrays, particularly the data-rate limitations, the modulation effects on the radiation pattern, and the bit error rate performance of these arrays, in practical applications, was investigated.
Abstract: Active antenna oscillator arrays have been considered in millimetre-wave communication systems to increase power levels for low cost radio modules, and in radar systems for high power generation. In this paper, the authors have investigated the performance of active antenna oscillator arrays, particularly the data-rate limitations, the modulation effects on the radiation pattern, and the bit error rate performance of these arrays, in practical applications. Also, a closed-form solution for the phase dynamics of a single injection-locked oscillator has been derived.
31 citations