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Asymmetrical-response dual-band bandpass filters on λ/8 transmission lines with modified richard's transformation
Zhang R.1; Luo S.1; Zhu L.2
2014-10-01
Source PublicationIEEE Microwave and Wireless Components Letters
ISSN15311309
Volume24Issue:10Pages:680-682
Abstract

A method to design a class of asymmetrical-response dual-band bandpass filters (BPFs) is proposed by using a modified Richard's transformation (MRT) with eighth-wavelength (λ/8) transmission lines. Compared to the traditional frequency transformation with symmetrical property, the proposed MRT method realizes asymmetrical property by introducing two design parameters to modulate the frequency transformation curves. An LC circuit can be transformed by a MRT with each shunt lumped capacitor/inductor being equivalently expressed by two sections of series-cascaded λ/8 transmission lines. With this technique, the bandwidths and center frequencies of the two passbands can be individually adjusted. To prove this proposed method, an asymmetrical dual-band BPF with mixed coupling nature is designed and measured in the end.

KeywordDual-band Bandpass Filter (Bpf) Eighth-wavelength Transmission Lines Modified Richard's Transformation (Mrt)
DOI10.1109/LMWC.2014.2341034
URLView the original
Indexed BySCI
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000343611100010
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Citation statistics
Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.Department of Electrical and Computer Engineering, National University of Singapore, Singapore
2.Faculty of Science and Technology, University of Macau, Macau SAR, China
Recommended Citation
GB/T 7714
Zhang R.,Luo S.,Zhu L.. Asymmetrical-response dual-band bandpass filters on λ/8 transmission lines with modified richard's transformation[J]. IEEE Microwave and Wireless Components Letters,2014,24(10):680-682.
APA Zhang R.,Luo S.,&Zhu L..(2014).Asymmetrical-response dual-band bandpass filters on λ/8 transmission lines with modified richard's transformation.IEEE Microwave and Wireless Components Letters,24(10),680-682.
MLA Zhang R.,et al."Asymmetrical-response dual-band bandpass filters on λ/8 transmission lines with modified richard's transformation".IEEE Microwave and Wireless Components Letters 24.10(2014):680-682.
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