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A subwavelength-in-thickness three-layer (gold micro-disk/quantum well infrared photodetector (QWIP)/metal reflector, MIM) plasmonic micro-cavity structure has been developed as a coupling resonator to enhance the photo-responsivity of the QWIP. The disk cavity structure captures and confines the incident light at the resonant wavelengths due to the near-field plasmonic effect. Comparing with the...
In this paper, the exponential stochastic synchronization of coupled neural networks via adaptive periodically intermittent control is further investigated. Based on the Lyapunov stability theory combined with the method of the adaptive control, periodically intermittent control and the properties of Weiner process, some simple criteria are derived for the exponential stochastic synchronization of...
This paper proposes a Q-enhancement method to improve the quality factor of coils in a resonant inductive coupling wireless power transfer system (WPTS). The proposed WPTS increases the transfer power and the transfer efficiency, simultaneously, especially at transfer distance over the coil diameter. The proposed Q-enhancement method is verified both by calculation and simulation results, which match...
Helium-3 ion irradiation technique is proposed to improve silicon substrate noise isolation by creating a local semi-insulated region with a resistivity over 1kΩ-cm in low-resistive silicon substrate. Noise isolation is improved about 10dB at 2GHz after helium-3 ion irradiation in a 180-nm CMOS process. A 90% noise reduction has been achieved in the measurement results for test structures with guard...
Rainfall is a major contribution factor to landslide, and it is a typical fluid-solid coupling process in unsaturated soils. So, the study on this process in unsaturated soils is of great significance in both theory and practice. Based on two stress variable theory of unsaturated soils proposed by Fredlund, continuity equation of water and Darcy's law, the governing equation of one-dimensional fluid-solid...
This paper presents a wide-band fractional-N frequency synthesizer for multi-standard cellular and short-range wireless communication receivers. The synthesizer covers the frequency band from 1.8 to 6 GHz and supports the standards of DCS1800, WCDMA, TD-SCDMA, WLAN802.11 a/b/g and Bluetooth. Architecture design and frequency planning are carefully performed to tradeoff wide frequency range and power...
Based on a method of network split through different nature of time-delay, this paper is further investigates the pinning synchronization of the directed complex dynamical networks with multi-links. Via the theory of Lyapunov stability combined with linear matrix inequalities (LMIs) technique and the method of the free-weighting matrix, some sufficient conditions for global synchronization by adding...
In order to improve the poor nature of user experience, data transfer efficiency between module, coupling for Enterprise Asset Management(EAM) system, this paper designs and implements a communication model based on Silverlight and Windows Communication Foundation(WCF) in EAM system. The model builds client by using Silverlight to enhance the user experience; it packages business logic by using WCF...
This paper presents a Sigma-Delta fractional-N frequency synthesizer for multi-standard receiver. The synthesizer's output range is 1.8~5.8GHz and covers the standards of DCS1800, WCDMA, TD-SCDMA, WLAN802. Ha/b/g and Bluetooth. Frequency planning is elaborately done to make sure the synthesizer meets specifications of standards mentioned above. QVCO with a proposed phase shifter is shown to have better...
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