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Some experimental study is conducted to validate the Time-Reversal imaging of extended targets in weak cluttered background and to examine some factors that influence the imaging quality.
In this paper we report the novel assembly method of a biosensor unit based on 64 pixel photodetector array with a proprietary semiconductor quantum dots (QDs) quantum well (QW) hybrid structure. There is significantly lower dark current for optimized high sensitivity detector. The capacitive trans-impedance amplifier (CTIA)-correlated double sampling (CDS) readout circuit can readout weak optical...
We have designed and developed a field deployable biosensor unit based on a novel proprietary quantum dots-quantum well hybrid structure. We analyzed in detail the detection sensitivity and in particular weak light detection and analysis of the semiconductor optoelectronic device. We designed a readout circuit and a data processing unit to handle the response signal. The sensor unit is equipped with...
In this paper we present novel miniaturised slits etched on a compact ground plane of a typical handset that result in a significant reduction of the mutual coupling between two Planar Inverted-F antennas (PIFAs). The antennas are designed to operate at about 1.8GHz and are placed on either side of the ground plane at a distance of approximately half wavelength.
In this work we have demonstrated, for the first time, a 0.605μm2 dual core oxide (DCO) dual Vdd 8T SRAM cell in 45 LPG triple gate oxide CMOS process for use as L1 cache for high performance low leakage mobile applications. The DCO 8T SRAM operates under dual voltage supplies with write assist. Compared to traditional single-end 8T cell, DCO 8T SRAM showed the same performance with only half the...
Radial line helical array antenna is a novel antenna which realizes the directional radiation of circularly polarized high power microwave. This paper put forward a rectangular radial line helical array antenna (subarray), which uses short helical antenna as its radiation element, each helix is excited by the energy coupled by a probe from a radial line waveguide, especially it can be simply assembled...
The High-power radial line helical circular array antenna is a novel antenna developed to realize directional radiation of high-power microwaves. This kind of antenna uses short helical antenna as its radiation element, and uses radial line as its feeding waveguide. New probes that can be fixed directly on the radial waveguide (without the need for medium support) are used to couple energy from the...
Mode matching method is a useful way to analyze the mode characteristics during the section change of the waveguide. By applying this method to the radial waveguide and solving specific problems due to the radial transmission of electromagnetic wave, a calculating method in radial waveguide based on mode matching is presented. The scattering characteristic of metallic plates in radial waveguide is...
As the core link of off-line reverse analysis, data collecting can be regarded as decryption of encrypted synchronous sequential machine, the key part of which is driving itself from decrypted state to encrypted state by building state transition diagram and using corresponding search strategy. Based on diffusion mechanism, weighted state transition diagram is built, on which single-branch search...
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