標題: Design of Dual-Passband Microstrip Bandpass Filters With Multi-Spurious Suppression
作者: Jiang, Meshon
Chang, Li-Ming
Chin, Albert
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: Dual-passband filter;microstrip;spurious response;stepped impedance resonator (SIR)
公開日期: 1-Apr-2010
摘要: A systematic design method for microstrip bandpass filters with both dual-passband response and multi-spurious suppression is proposed in this letter. The filter is composed of stepped impedance resonators (SIRs). A novel asymmetric SIR structure is proposed to effectively increase the degree of freedom in the dual-passband bandwidth design. As a consequence, the transmission zero of the coupling stage could be used to suppress the unwanted higher order spurious responses. A complete design procedure considering both the synthesis of passband responses and the suppression of spurious responses is also depicted in detail. A fifth order filter is designed and fabricated to demonstrate this idea. The measured results show that the upper stopband can have an attenuation level near 30 dB up to more than 20 GHz (8.16 f(0)).
URI: http://dx.doi.org/10.1109/LMWC.2010.2042550
http://hdl.handle.net/11536/5584
ISSN: 1531-1309
DOI: 10.1109/LMWC.2010.2042550
期刊: IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
Volume: 20
Issue: 4
起始頁: 199
結束頁: 201
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