NDLI: Design of compact size and tunable band pass filter for WLAN applications

Content Provider	IET Digital Library
Author	Boutejdar, A. Ibrahim, A. A. Ali, W. A. E.
Abstract	Compact size and tunable band pass filter based on open-loop resonators is proposed. The proposed structure consists of dual-armed microstrip open-loop resonators. A second armed open-loop resonator, which acts as band rejection resonator, is connected directly to the input and output ports to achieve the desired band pass behaviour. The open-loop microstrip resonators are combined with four lumped capacitors to reduce the overall size of the proposed filter. The capacitors are inserted at places where maximum electric field is occurred in order to increase the effective capacitance and reduce the resonant frequency as well. The resonance frequency is translated from 6.75 to 5.3 GHz for WLAN applications. Consequently, the filter size will be more compact and the filter performance will be improved by enhancing the energy stored in the resonator. The proposed design using lumped capacitors represents a reduction in size of more than 35% when compared with conventional filter without using lumped capacitors. A good consistency is achieved between simulated and measured results.
Starting Page	1996
Ending Page	1997
Page Count	2
ISSN	00135194
Volume Number	52
e-ISSN	1350911X
Issue Number	Issue 24, Nov (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/52/24
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2016.3073
Journal	Electronics Letters
Publisher Date	2016-10-25
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Band Rejection Resonator Band-pass Filter Capacitor Dual-armed Microstrip Open-loop Resonator Filter And Other Network Frequency 6.75 GHz to 5.3 GHz Lumped Capacitor Maximum Electric Field Microstrip Resonator Resonant Frequency Tunable Band Pass Filter Waveguide And Microwave Transmission Line Component Wireless LAN Wireless Local Area Network WLAN Application
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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