A planar and low-profile high gain antenna with an ability to change direction of radiation to any desired location in a conical region, covering a major portion of the upper hemisphere, without severe performance penalty.
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ZVS contour amplifier offers high efficiency in the low (<10 dB) back-off PAR regimeDigital polar amplifier offers high efficiency in the 10-36 dB PAR regimeHigh average efficiency, benefiting large personal mobile radio (PMR) signals like those used in orthogonal frequency digital multiplexing (.....
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Researchers at Purdue University have developed a system and method that allows for fast and sensitive detection of astigmatism in TEM images. A digital micrograph script allows for such improvements in the readings of astigmatism and allows for real-time feedback to help guide the adjustment of obj.....
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It uses a switched-capacitor resistor instead of an array of switches, which allows it to implement a voltage divider between its resistance and the effective resistance of the load to regulate the load voltage precisely, even under low supply voltages.
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This present invention is particularly useful in obtaining quantitative optical properties and chromophore concentrations of tissue components in vivo at superficial depths and "short" source-detector separations. The probe is amenable to use in free space or in tissues that can be reached by endos.....
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