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This communication presents a comprehensive numerical analysis of single microstrip antenna and antennas array in spherically layered media, using the method of moments (MoM). The curvilinear Rao–Wilton–Glisson (CRWG) triangular basis functions are employed to simulate the equivalent current on the antenna surface. First, the dyadic Green’s functions using Debye potential are deduced. Then, their...
Active array radar (DAR) is a kind of phased radars, which utilizes beam-forming technique both in receiving and transmitting. Active T/R module is a key technique in the next generation of T/R modules for active array radar. In order to realize the automatic test of the active T/R modules, the advanced modern automatic test system (ATS) is built based on GPIB bus. The principle of the ATS for the...
Self-aligned shallow trench isolation recess effect on 42 nm node NAND flash to achieve high performance and good reliability has been studied and demonstrated. As cell STI recess is increased by 23 nm, 29% narrower cell Vth distribution width and 54% less cell Vth shift after 125°C, 2 hours can be obtained. Furthermore, the endurance window is obviously improved ~0.5V as the distance of the active...
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