NOVEL PLANAR MULTIMODE BANDPASS FILTERS WITH RADIAL-LINE STUBS | Zendy

Long Zhang | Zendy; Zhiyuan Yu | Zendy; ShaoGuo Mo | Zendy

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NOVEL PLANAR MULTIMODE BANDPASS FILTERS WITH RADIAL-LINE STUBS

Author(s) -

Long Zhang,

Zhiyuan Yu,

ShaoGuo Mo

Publication year - 2010

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier09121303

Subject(s) - band pass filter , planar , radial line , multi mode optical fiber , line (geometry) , physics , computer science , optics , mathematics , geometry , computer graphics (images) , optical fiber

This paper presents a novel approach for designing planar multimode wideband bandpass fllters with good selectivity. The multimode resonator is composed of an open-ended microstrip line with length of half-wavelength (‚=2) and several radial-line stubs. By using difierent kinds of radial-line loaded stubs, difierent kinds of responses including three-pole and four-pole bandpass fllters can be realized. Depending on electric fleld distribution and equivalent circuit model, the characteristics of the fllter are analyzed. To verify the proposed method, two fllters are implemented. The measured results exhibit good agreement with the simulation.

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