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Planar wire array Z pinches were carried out on the QiangGuang-I facility (1.3 MA, 100 ns). The effect of prepulse current and insulating coatings on the Z pinch behavior is investigated. Commonly there is a multichannel gas switch filled with 0.5 Mpa dry air between the transmission line and the MITL to cut off the prepulse current. By varying gas pressure filled in the switch, the parameters of...
In this paper, a novel microstrip antenna array with low RCS (Radar Cross Section) is presented and analyzed. Under the condition that the incident wave is in grazing angle, a single microstrip antenna which uses the techniques of miniaturization and ground-cut slots is chosen as an element of a 2×2 antenna array. Analysis and optimization of the arrangement of the array is made to realize more reduction...
A complete instrumentation system for interrogating silicon photonic wire waveguide sensor array chips has been built and demonstrated. The system is designed to read 16 or more photonic wire sensors on a single silicon chip simultaneously and in real time, while delivering sample fluid to the sensors through microfluidic channels fabricated monolithically on the chip. The chip can be inserted into...
In this paper, a novel three-dimensional (3D) microelectrode integrated with micro and nano architectures has been developed to enhance the property of amperometric microsensor. By silicon bulk micromachining technology, a 3D micrometer-scale pyramidal micropool array (PMA) has been fabricated on working electrode surface. The PMA redistributes electric field strength over working electrode surface...
We present a parallelized and pipelined architecture for a generalized Laguerre-Volterra MIMO system to identify the time-varying neural dynamics underlying spike activities. The proposed architecture consists of a first stage containing a vector convolution and MAC (Multiply and Accumulation) component, a second stage containing a pre-threshold potential updating unit with an error approximation...
We describe a scalable optomechanical array, with double-disk resonators, for two-qubit quantum phase gate of phonon states where mechanical systems exhibit significantly long lifetime. Simulation results show high fidelity and low photon loss.
Beam steering of a linearly tapered slot antenna array integrated with quantum dot mode-locked lasers is presented. The angle difference between main lobes under different bias conditions is observed to be 10° at 10 GHz.
A novel robust adaptive beamformer, with new robust constraints on array magnitude response was proposed by utilizing the autocorrelation sequence of array weight vector and the worst-case optimization technique. The proposed adaptive beamformer was formulated as a linear programming problem with second-order cone semi-infinite constraints, which can be eliminated by using the sampling technique....
This paper presents details of the design and fabrication of test structures specifically designed for the characterisation of two distinct digital microfluidic technologies: Electro-Wetting On Dielectric (EWOD) and Surface Acoustic Wave (SAW). A test chip has been fabricated that includes structures with a wide range of dimensions and provides the capability to characterise enhanced droplet manipulation...
Many advanced adaptive beamformers are robust against arbitrary array steering vector (ASV) mismatches within a presumed uncertainty set. Adaptive array tolerating significant steering direction error usually requires a large size of ASV uncertainty set. In such case, however, the output signal-to-interference-plus-noise ratios (SINRs) of robust methods degrade quickly with the increasing size of...
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