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A broadband bandpass filter with a notch-band using step-impedance resonator and embedded slots

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3 Author(s)
Meeloon, M. ; King Mongkut''s Univ. of Technol. North Bangkok, Bangkok, Thailand ; Chaimool, S. ; Akkaraekthalin, P.

This paper proposes a new broadband microstrip bandpass filter based on a step-impedance resonator (SIR) and embedded slot structure for a notch-band and improved upper stopband performances. A comprehensive treatment of a slotted resonator with both ends of interdigital coupled lines and an embedded slot feed is described. The proposed filter has a notch-band and a wider upper stopband, resulting from the slotted feed line and resonator characteristics. The simulated and experimental results show a narrow notch-band and superior stopband performances of better than 10 dB for a frequency range up to 25 GHz.

Published in:
Microwave Conference, 2009. APMC 2009. Asia Pacific

Date of Conference: 7-10 Dec. 2009

Page(s):
1446 - 1449
E-ISBN :
978-1-4244-2802-1
Print ISBN:
978-1-4244-2801-4
INSPEC Accession Number:
11086936
Conference Location :
Singapore
Digital Object Identifier :
10.1109/APMC.2009.5384489
Product Type:
Conference Publications

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