Abstract
AbstractA highly miniaturized microstrip diplexer composed of pseudointerdigital quasi‐elliptical bandpass filters is proposed. Compactness of diplexer is achieved through the combination of the bandpass filters, which does not require matching network. The proposed microstrip diplexer, having a size of 30.7 × 5.6 mm at a center frequency of 2.7 GHz at channel 1 and 3.8 GHz at channel 2 is designed, fabricated, and tested. Experimental results of the fabricated microstrip diplexer are in very good agreement with the simulated results. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2701–2702, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23733
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