S. Kittiwittayapong, D. Torrungrueng, K. Phaebua, T. Lertwiriyaprapa, P. Akkaraekthalin, Kitiphon Sukprecha
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Wideband Impedance Matching Using Quarter-Wave-Like-Transformers Implemented by Asymmetric Compact Microstrip Resonant Cells
This paper presents a novel design of miniaturized wideband impedance transformers using quarter-wave-like transformers (QWLTs), implemented by asymmetric compact microstrip resonant cells (CMRCs). For illustration, the binomial matching transformers are employed for wideband impedance matching, and they are implemented using asymmetric CMRCs in cascade. It is found that the total size reduction of about 58% can be achieved by using the novel design, compared with that of the conventional binomial impedance matching circuit, with acceptable impedance bandwidth performance.
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