NDLI: Design of wideband four-way filtering power divider based on SIW loaded square patch resonator

Content Provider	IET Digital Library
Author	Yang, Mengni Wang, Jianpeng Wang, Xuedao Wu, Wen
Abstract	A new design of wideband four-way filtering power divider (FPD) based on substrate-integrated waveguide (SIW) loaded square patch resonator is presented. The wideband operation is realised by utilising the TM20 mode of the patch and the TE110 mode of the SIW cavity resonator. Afterwards, the selectivity is obtained by adding four open-ended coupling lines to each side of the square patch. Besides, an extra isolation network is introduced between each output port. To verify the design concept, a prototype of the proposed FPD operating at 3.55 GHz with a fractional bandwidth of 21.3% is fabricated and measured. Results indicate that the input return loss is >10 dB and the insertion loss is <2 dB. The amplitude and phase imbalances are >0.3 dB and 3°, respectively. Both simulated and measured results are in good agreement.
Starting Page	389
Ending Page	391
Page Count	3
ISSN	00135194
Volume Number	55
e-ISSN	1350911X
Issue Number	Issue 7, Apr (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/55/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2018.8058
Journal	Electronics Letters
Publisher Date	2019-02-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Amplitude Imbalance Cavity Resonator FPD Frequency 3.55 GHz Isolation Network Microwave Filter Microwave Resonator Open-ended Coupling Line Passive Filter Passive Network Phase Imbalance Power Divider SIW Cavity Resonator SIW Loaded Square Patch Resonator Substrate Integrated Waveguide Substrate-integrated Waveguide Waveguide And Microwave Transmission Line Waveguide And Microwave Transmission Line Component Wideband Four-way Filtering Power Divider Wideband Operation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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