Miniaturized dual-band bandpass filter using quarter-wavelength stepped-impedance resonators

作者: Li Gao , Xiu Yin Zhang , Kai Xu Wang , Bin-Jie Hu

DOI: 10.1109/APMC.2012.6421558

关键词:

摘要: In this paper, we present a novel dual-band miniaturized bandpass filter. The quarter-wavelength stepped impedance resonators are used to generate response. For circuit size reduction, the folded and coupled by parallel microstrip line. Four transmission zeros created near passband, resulting high selectivity. area of filter is only 6.7 mm × 7.7 (0.098λ g ×0.11λ ), where λ guided wavelength at operating frequency 2.35GHz. demonstration, BPF have been implemented. Comparisons measured simulated results presented verify theoretical predications.

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