Advanced Waveguides Technology for Sensing and Communications

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microwave and Wireless Communications".

Deadline for manuscript submissions: 10 May 2024 | Viewed by 1367

Special Issue Editors


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Guest Editor
School of Electrical and Electronic Engineering, Technological University Dublin, Dublin 2, Ireland
Interests: robotics; IoT; control and automation; 5G/6G wireless signal processing
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Electrical and Electronic Engineering, Technological University Dublin, Dublin 2, Ireland
Interests: sensing-related application sections

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Guest Editor
Department of Computer Science and Engineering, University of Westminster, London W1W 6UW, UK
Interests: microwaves; RF; antennas; wireless communications; filters; design of circuits from RF through uWave/mmWave to terahertz frequencies for 4G, 5G, B5G, and 6G wireless communications; WLAN; WPT; wireless sensors; Internet of Things (IoT); biomedical applications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Sensor technology has revolutionized our world and daily lives. We all rely on sensors and wireless technologies used for sending and receiving sensed data in some form. They are widely prevalent in our homes and workplaces. They are embedded in smart phones and an integral part of the Internet of Things (IoT). The integration of wireless communication technologies and advanced waveguides and sensors has brought sensor usage to a new level. This Special Issue focusses on the most recent advancements in sensing and communication, such as waveguides and sensors for applications (such as the Industrial Internet of Things (IIoT) and the Internet of Medical Things (IoMT)). The following targeted topics include, but are not limited to, the following:

  • The type, classification, and characteristics of sensing technologies and their recent developments;
  • Signal conditioning and gateways in order to integrate sensors with communication technologies;
  • Advancements toward IoT protocols in order to improve the transmission of data from sensors;
  • Waveguide design improvements for data and efficiency of sensing;
  • Signal processing enhancement toward sensing and overall operation efficiency;
  • Energy harvesting in wireless sensor networks;
  • Application of optimization algorithms in order to enhance the embedded sensors.

Dr. Somayeh Mohammady
Dr. Catherine Deegan
Dr. Djuradj Budimir
Guest Editors

Manuscript Submission Information

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Published Papers (1 paper)

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Research

16 pages, 4799 KiB  
Article
Resonator-Loaded Waveguide Notch Filters with Broad Tuning Range and Additive-Manufacturing-Based Operating Frequency Adjustment Procedure
by Tanveerul Haq, Slawomir Koziel and Anna Pietrenko-Dabrowska
Electronics 2023, 12(21), 4486; https://doi.org/10.3390/electronics12214486 - 31 Oct 2023
Cited by 1 | Viewed by 1051
Abstract
This article presents a new class of ring-resonator-loaded waveguide notch filters with a broad tuning range, low cost, and improved performance. The proposed approach employs a complementary asymmetric split-ring resonator coupled to a microstrip transmission line and excited in a rectangular waveguide. An [...] Read more.
This article presents a new class of ring-resonator-loaded waveguide notch filters with a broad tuning range, low cost, and improved performance. The proposed approach employs a complementary asymmetric split-ring resonator coupled to a microstrip transmission line and excited in a rectangular waveguide. An equivalent circuit model is proposed to explain the working principle of the proposed notch filter. The adjustment of the operating frequency is based on the additive manufacturing of a metallic copper patch allocated on the microstrip transmission line, which enables extensive tuning capabilities and consistent performance with minimum variations across the tuning window. For demonstration purposes, a filter employing a WR-28 waveguide and photolithography-manufactured resonator is prototyped and experimentally validated. The measured results indicate a broad 8 GHz tuning range with a consistent insertion loss, ranging from 23.4 to 31.4 GHz. An inverse regression model is constructed using measurement data obtained for tuning patches of various sizes, which allows for determining the relationships between the operating frequency and the copper patch size. The resulting calibration curve enables rapid filter tuning to the required frequency by inserting metallic patches of the model-predicted size. Full article
(This article belongs to the Special Issue Advanced Waveguides Technology for Sensing and Communications)
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