NDLI: Miniaturised wideband bandpass filter based on harmonic suppressed dual transmission lines

Content Provider	IET Digital Library
Author	Zhang, Bo Wu, Yongle Yu, Cuiping Liu, Yuanan
Abstract	A novel miniaturised wideband bandpass filter (BPF) based on harmonic suppressed dual transmission lines (DTLs) is introduced with enhanced upper stopband rejection and passaband selectivity. The transmission and harmonic suppression characteristics of series and parallel connected DTLs are analysed adopting even–odd mode method. To verify the proposed structure, a high selective wideband BPF centred at 1.86 GHz with a fractional bandwidth of 93.5% is designed and fabricated. The upper stopband is extended up to 8.8 GHz (4.7f 0) with the suppression level of above 35 dB. Furthermore, a size reduction of 30% can be achieved in proposed BPF, compared with conventional wideband BPF based on quarter-wavelength transmission lines.
Starting Page	734
Ending Page	736
Page Count	3
ISSN	00135194
Volume Number	52
e-ISSN	1350911X
Issue Number	Issue 9, Apr (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/52/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2016.0361
Journal	Electronics Letters
Publisher Date	2016-04-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Band-pass Filter Dual Transmission Line Even-odd Mode Method Filter And Other Network Frequency 1.86 GHz Harmonic Suppression Characteristic Harmonics Suppression Miniaturised Wideband Bandpass Filter Parallel Connected DTL Passband Selectivity Quarter-wavelength Transmission Line Series Connected Dual Transmission Line Transmission Line UHF Filter Upper Stopband Rejection Enhancement Waveguide And Microwave Transmission Line Component Wideband BPF
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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