@article{c99dd876a0004f8bb64be24db60e60c6,
title = "Extended-stopband bandpass filter using both half- and quarter-wavelength resonators",
abstract = "A novel quasielliptic microstrip bandpass filter (BPF) using both half- and quarter-wavelength resonators is proposed. With the quarter-wavelength (λ/4) resonators placed in the interstage, the filter spurious passband can be pushed up to 3 f 0 where f 0 stands for the passband center frequency. To improve the stopband characteristics, a modified stopband-extended filter is implemented, utilizing the multiple transmission zeros placed at specified frequencies to achieve good frequency selectivity and out-of-band rejection. The modified filter provides a 22.5-dB rejection level from 1.14 f 0 to 5.2 f 0.",
keywords = "Cross-coupled bandpass filter (BPF), Extended stopband, Half-wavelength resonator, Microstrip, Quarter-wave-length resonator",
author = "Lin, {Shih Cheng} and Lin, {Yo Shen} and Chen, {Chun Hsiung}",
note = "Funding Information: Manuscript received July 21, 2005; revised September 8, 2005. This work was supported by the National Science Council of Taiwan, R.O.C., under Grant NSC 94-2752-E-002-001-PAE and Grant NSC 93-2219-E-002-021. The review of this letter was arranged by Associate Editor J.-G. Ma.",
year = "2006",
month = jan,
doi = "10.1109/LMWC.2005.860014",
language = "???core.languages.en_GB???",
volume = "16",
pages = "43--45",
journal = "IEEE Microwave and Wireless Components Letters",
issn = "1531-1309",
number = "1",
}