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Millimeter wave bandpass filter using three-line microstrip structures

✍ Scribed by Zan Zhang; Jian-Zhong Gu; Chuang Wang; Xiao-Wei Sun

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
174 KB
Volume
49
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

This paper presents a novel Ka‐band millimeter bandpass filter using three‐line microstrip structures. A network analysis of a three‐line unit is described, and the scattering parameters of the unit cell are derived. A demonstration three‐line bandpass filter and a traditional two‐line one, centered at 35 GHz, are designed, fabricated, and measured. The simulation and measured results are with good agreements. When compared with the conventional parallel coupled line microstrip structures, the new structure bandpass filter owns its practical advantages; it has improved stop band rejections, low insertion loss in pass band, reduced area of circuit layout, and released line spacing limitation for the first and last coupling units of filters. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 40–42, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22053

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