NDLI: Compact dual-mode dual-band bandpass filter with wide stopband for WLAN applications

Content Provider	IET Digital Library
Author	Xu, Li Jie Zhang, Gang Tang, Yi Ming Bo, Ya Ming
Abstract	A compact dual-mode dual-band bandpass filter (BPF) for WLAN applications is presented. On the basis of a primary passband formed by a ring resonator, a second passband is introduced by taking advantage of its tightly coupled input and output structures. Therefore, a dual-band performance is achieved without increasing the overall circuit size. Shorting vias and spurlines are adopted separately to realise the dual-mode excitation of each passband. Finally, a compact dual-mode BPF centred at 2.4 and 5.2 GHz is designed and fabricated, along with four transmission zeros, leading to sharp skirts and a wide stopband. Experimental results reveal good agreement with simulation results.
Starting Page	1372
Ending Page	1374
Page Count	3
ISSN	00135194
Volume Number	51
e-ISSN	1350911X
Issue Number	Issue 17, Aug (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/51/17
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2015.1913
Journal	Electronics Letters
Publisher Date	2015-08-06
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Band-pass Filter Band-stop Filter Circuit Size Compact Dual-mode Dual-band Bandpass Filter Coupled Circuit Coupled Input Structure Coupled Output Structure Dual Mode Dual Band BPF Dual-band Performance Dual-mode Excitation Filter And Other Network Frequency 2.4 GHz Frequency 5.2 GHz Microwave Filter Microwave Resonator Primary Passband Radio Link And Equipment Resonator Filter Ring Resonator Second Passband Shorting Via Spurline Transmission Zero UHF Filter Vias Waveguide And Microwave Transmission Line Component Wide Stopband Wireless LAN Wireless Local Area Network WLAN Application
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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