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An improved ultra-wideband (UWB) microstrip filter with good out-of-band performance is designed and demonstrated. The filter is designed with two multiple-mode resonators (MMR), which are coupled together via a parallel-coupled line. A novel rectangular slit compact microstrip resonant cell (CMRC) is applied to improve the filter performance, which is formed by etching in the central section of the...
An improved multiple mode resonant (MMR) ultrawideband (UWB) bandpass filter is proposed using a novel rectangular slit compact microstrip resonant cell (CMRC). The CMRC is formed by perforating on the central section of the MMR, which make the both structures incorporate into one successfully. Combining the CMRC lowpass filter and slow wave characteristics, the filter has widened stopband characteristic...
Wireless sensor networks are increasingly being used in applications where QoS and low cost are the overriding considerations. Conventional schemes of using sensor nodes and incorporating these three phenomena (reliability, availability and serviceability) to attain QoS can effectively improve not only the reliability of the overall WSNs but security as well. We discuss the reverse look of QoS and...
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