✦ LIBER ✦

Compact transversal bandpass filter incorporating microstrip dual-mode open-loop resonator and slot line resonator with source-load coupling

✍ Scribed by Mingqi Zhou; Xiaohong Tang; Fei Xiao

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 174 KB
Volume: 51
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.24765

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✦ Synopsis

Abstract

A novel transversal bandpass filter is proposed in this letter. Different from conventional two‐order planar transversal filter, the proposed filter is a three‐order planar transversal filter by incorporating microstrip dual‐mode open‐loop resonator and slot line resonator. Furthermore, by introducing source‐load capacitive coupling, three transmission zeros are created to improve the selectivity of the passband and reject the unwanted signal above the passband. The measured result agrees well with the simulation. The size of the proposed filter is less than 0.15λ~g~ × 0.2λ~g~, where λ~g~ is the guided wavelength on the substrate. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2927–2929, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24765

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