Harmonic suppression in parallel coupled microstrip bandpass filter with embedded C-shaped EBG cells

• Autores: H. W. Wu, S. H. Chang, Min Weng, Hon-Kuan Tong, Su Yan
• Localización: Microwave and optical technology letters, ISSN 0895-2477, Vol. 48, Nº. 11, 2006, págs. 2244-2246
• Idioma: inglés
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• Resumen

  • In this article, harmonic suppression of a parallel coupled microstrip bandpass filter (BPF) with C-shaped electromagnetic bandgap (EBG) cells embedded on the middle layer is investigated. The embedded C-shaped EBG cells patterned on the middle layer add a good stopband-rejection mode to the second harmonics of the parallel coupled microstrip BPF with suppression of over −40 dB, without affecting the center frequency and insertion loss of the original designed BPF. The experimented results matched the simulated results well.