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New design concept of dual‐mode bandpass filter by using nonorthogonal input and output ports for wireless application
Author(s) -
Chen HanJan,
Huang TsungHui,
Chen LihShan,
Horng JuiHong,
Houng MauPhou
Publication year - 2006
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21431
Subject(s) - band pass filter , dual mode , electronic engineering , microwave , dual (grammatical number) , flexibility (engineering) , filter (signal processing) , wireless , mode (computer interface) , engineering , degenerate energy levels , topology (electrical circuits) , computer science , electrical engineering , physics , telecommunications , mathematics , art , statistics , literature , quantum mechanics , operating system
In this paper, new design concept of nonorthogonal input and output (I/O) ports applied to optimize dual‐mode bandpass ring filter is proposed. Compared to conventional dual‐mode filters, the proposed filter with nonorthogonal I/O could not only support two degenerate modes operation, but also increase design flexibility. Moreover, the design of dual‐mode filters would not have an I/O geometry limitation, corresponding to high integration. Finally, a simple structure and high selectivity for the dual‐mode bandpass filters were obtained. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 639–641, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21431