Abstract
AbstractA compact microstrip lowpass filter (LPF) for harmonics suppression is proposed. An open stub LPF with uniquely shaped defect ground structure cells is used to optimize the LPF performance. A stopband attenuation of greater than 20 dB is obtained from 3.42 GHz to more than 18 GHz. The physical size of the proposed LPF, excluding transmission lines, is only 10 × 15 mm2. Good agreements between simulation and measurements are observed. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1385–1387, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26809
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