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Design of a stopband‐improved UWB filter using a pair of shunt and embedded open stubs
Author(s) -
Weng MinHang,
Kuan Hon,
Chen WenLang,
Ye ChangSin,
Su YanKuin
Publication year - 2009
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.24556
Subject(s) - stopband , passband , band pass filter , resonator , microwave , electronic engineering , shunt (medical) , elliptic filter , transition band , electrical engineering , optoelectronics , engineering , materials science , physics , acoustics , computer science , filter (signal processing) , prototype filter , low pass filter , telecommunications , medicine , cardiology
In this letter, an ultrawideband (UWB) bandpass filter (BPF) with an improved stopband has been proposed. The proposed UWB BPF, having a lower passband of 3.5–5.2 GHz and a higher passband of 6.5–9.7 GHz, mainly comprises the parallel‐coupled lines and slot‐line resonator. A wide stopband of the proposed BPF from 10 to 20 GHz can be achieved by using a pair of shunt and embedded open stubs. The proposed UWB BPF is designed, fabricated, and measured. Good agreement with the electro‐magnetic simulation and measurement is demonstrated. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2121–2124, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24556
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