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| 題名: | Design of Compact Dual-Band Bandpass Filters Using λ/2 and Combined λ/4 Stepped-Impedance Resonators |
| 作者: | C.-H. Lee;Y.-H. Hsieh;Ho, Min-Hua |
| 貢獻者: | 電子工程學系 |
| 關鍵詞: | Stepped-impedance resonator;Dual-band BPF;Cross-coupled configuration;0� tapped feed |
| 日期: | 2007-11
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| 上傳時間: | 2012-05-22T06:26:35Z
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| 出版者: | Wiley |
| 摘要: | This paper presents a compact dual-band bandpass filter (BPF) that consists of a pair of L-shape half-wavelength (λ/2) stepped-impedance resonators (SIRs) and an inverted Z-shape resonator. The latter is actually a combined structure of two λ/4 SIRs along with a magnetic coupling in between and hence designed to reduce the circuit size. Cross-coupled SIR configuration and 0° tapped-feed structures are adopted to introduce attenuation poles around the passband edges for selectivity improvement. A wider −20-dB upper stopband is achieved by properly separating the third resonant frequencies of the SIRs of different types. The newly designed dual-band BPF was verified by circuit implementation, and a very good agreement between the simulated and measured results was observed. |
| 關聯: | Microwave and Optical Technology Lett., 49(11): 2703-2706 |
| 顯示於類別: | [電子工程學系] 期刊論文
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