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Novel UWB Bandpass Filter Using CPW-to-Microstrip Transition Structure
Tae-Hak LEE Jung-Woo BAIK Seongmin PYO Young-Sik KIM
Publication
IEICE TRANSACTIONS on Electronics
Vol.E92-C
No.12
pp.1545-1547 Publication Date: 2009/12/01 Online ISSN: 1745-1353
DOI: 10.1587/transele.E92.C.1545 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Microwaves, Millimeter-Waves Keyword: ultra-wideband (UWB), UWB bandpass filter, coplanar waveguide-to-microstrip, transition, coplanar strip-to-microstrip transition,
Full Text: PDF(414.4KB)>>
Summary:
A novel bandpass filter (BPF) for an ultra-wideband (UWB) system is proposed in this letter. The BPF consists of four coplanar stripline (CPS)-to-microstrip transitions. Each transition is employed for broad electromagnetic (EM) coupling between a short-circuited CPS and an open-circuited microstrip line. The equivalent circuit model of the proposed geometry is derived and utilized in the impedance and mode matching analysis. Measured results show good agreement with the analysis and simulated ones.
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