NDLI: Compact dual-band balanced SIW bandpass filter with two adjustable closed-passbands

Content Provider	IET Digital Library
Author	Liu, Yijie Zhang, Gang Zheng, Jian
Abstract	A new compact multilayer dual-band-balanced bandpass filter (BPF) with two flexibly adjustable closed-passbands based on substrate-integrated waveguide (SIW) resonator is proposed in this letter. Both TE102-mode and TE201-mode of the resonator are utilised to achieve desired differential mode (DM) transmission and high common mode suppression. Two SIW cavities are properly coupled in the back-to-back form to realise a closed dual-passband-balanced response by virtue of singly one cruciform coupling aperture etched on the ground. Additionally, two pairs of perturbed slotlines are elaborately introduced on the top and bottom layers to perturb the resonant frequencies of TE102-mode and TE201-mode, realising both adjustable upper- and lower-DM passbands. For demonstration, a prototype dual-band-balanced SIW BPF operating at 12.7 and 15.5 GHz is designed, fabricated and tested. Measured and simulated results are in good agreement, verifying the feasibility of the design concept.
Starting Page	667
Ending Page	669
Page Count	3
ISSN	00135194
Volume Number	56
e-ISSN	1350911X
Issue Number	Issue 13, Jun (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/56/13
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2020.0576
Journal	Electronics Letters
Publisher Date	2020-04-08
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Band-pass Filter Closed Dual-passband-balanced Response Common Mode Suppression Compact Multilayer Dual-band-balanced Bandpass Filter Cruciform Coupling Aperture Differential Mode Transmission Dual-band-balanced SIW BPF Flexibly Adjustable Closed-passBand Frequency 12.7 GHz Frequency 15.5 GHz Lower-DM PassBand Microwave Filter Passive Filter Passive Network Perturbed SlotLine Resonance Frequency Resonator Filter SIW Bandpass Filter SIW Cavities SIW Resonator Substrate Integrated Waveguide Substrate-integrated Waveguide Resonator TE102-mode TE201-mode Upper-DM PassBand Waveguide And Microwave Transmission Line Waveguide And Microwave Transmission Line Component Waveguide Filter
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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