Parallel coupled bandstop filter using double negative coupled transmission line
- Authors
- Lee, Jae-Gon; Lee, Jeong-Hae
- Issue Date
- Apr-2007
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- broad bandstop filters (BSFs); double negative (DNG) transmission line; harmonics suppression; mushroom structure
- Citation
- IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.17, no.4, pp.283 - 285
- Journal Title
- IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
- Volume
- 17
- Number
- 4
- Start Page
- 283
- End Page
- 285
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/23620
- DOI
- 10.1109/LMWC.2007.892973
- ISSN
- 1531-1309
- Abstract
- In this letter, a novel parallel coupled bandstop filter (BSF) using a double negative (DNG) coupled transmission line is presented. Between microstrip as a double positive (DPS) transmission line and mushroom structure as a DNG transmission line, strong coupling broadly arises in the cross range of dispersion curves of isolated microstrip and mushroom structure because of a complex propagation constant in the cross range. Strong coupling inhibits wave propagation, so that this kind of structure can be utilized as a BSF. This BSF utilizes coupled transmission line instead of coupled resonator, resulting in broad bandwidth (>30%), sharp-rejection, and high rejection level. The strong coupling between the DPS and DNG transmission line makes it possible to shorten the coupling length, resulting in compact size.
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Collections - College of Engineering > School of Electronic & Electrical Engineering > 1. Journal Articles
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