NDLI: Substrate integrated waveguide dispersive delay structure based on wave trapping

Content Provider	IET Digital Library
Author	Rafi, Hossein Nazemi Movahhedi, Masoud
Abstract	A dispersive delay structure (DDS) is a device that creates a specified group delay function over frequency bandwidth. In this study, the idea of trapping the electromagnetic waves in a feedback loop is proposed to achieve higher group delay swing. The proposed structure includes two transmission lines and two junctions that act as power divider/combiner. The transmission lines can be either dispersive or non-dispersive. The group delay in the proposed configuration is proportional to the injected power into the feedback loop. So, an increase in the group delay swing can be done by improving the junctions or by adding more feedback loops to the structure. Based on this configuration, a novel DDS, using the substrate integrated waveguide transmission line, is introduced. According to the experimental results, the proposed device with a relatively compact size creates high group delay swings (9 ns), and its insertion loss is about 7 dB.
Starting Page	2081
Ending Page	2087
Page Count	7
ISSN	17518725
Volume Number	14
e-ISSN	17518733
Issue Number	Issue 15, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/14/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2020.0487
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2020-10-07
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Couplers Delay Electromagnetic Wave Feedback Loop Frequency Bandwidth Group Delay Function Group Delay Swings Injected Power Insertion Loss Optical Waveguide Power Combiners Power Divider Power Divider-combiner Substrate Integrated Waveguide Substrate Integrated Waveguide Dispersive Delay Structure Substrate Integrated Waveguide Transmission Line Transmission Line Wave Trapping Waveguide And Microwave Transmission Line Waveguide And Microwave Transmission Line Component
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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