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In this paper, a novel coupling structure for broad-band band-pass fin-line filter design is analyzed by 3-D full-wave simulation and then utilized as K inverter network. Network parameters are obtained and compared with those of the traditional inductive coupling structure, indicating that higher coupling strength can be achieved by choosing the proper size of the proposed coupling structure. Meanwhile,...
The design, assembly, and measured results of a low cost, compact, low conversion loss, single balanced Schottky diodes mixer for Ka-band satellite transponder simulator have been proposed. A microstrip rat-race ring at the local oscillator (LO) frequency is constructed as a 180 degree hybrid coupler, which also satisfies the amplitude and phase characteristics requirements at the radio frequency...
Visual sensor networks (VSNs) have been attracting more and more research attention nowadays. This paper presents our design of a distributed solution for a VSN to detect targets in a large and crowded field. Due to ambiguities in local visual information and ubiquitous visual occlusions, obtaining accurate detection results requires fully utilizing the entire visual information acquired across the...
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