Gap Waveguide Technology: An Overview of Millimeter-Wave Circuits Based on Gap Waveguide Technology Using Different Fabrication Technologies

Shi, Yongrong; Feng, Wenjie; Qian, Zhiyu; He, Shujun; Zhou, Xinyu; Xue, Quan; Che, Wenquan; Wu, Qihui

doi:10.1109/mmm.2022.3211595

Cited by 5 publications

(2 citation statements)

References 54 publications

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“…Only a few review articles have been proposed based on GW technologies [33,[85][86][87]. Previous review articles have discussed antenna feeding structures and other microwave components based on GW technology.…”

Section: Introductionmentioning

confidence: 99%

“…Demonstrations are provided on how GW can be beneficial in terms of power handling and low loss, and it does not require any contact between the two halves, requiring only a few plastic screws for assembly. Subsequently, in 2023, additional review articles were proposed to describe the importance of these emerging guiding structures [85][86][87].…”

Section: Introductionmentioning

confidence: 99%

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Exploring Gap Waveguide Solutions: A Review of Millimeter-Wave Beamforming Components and Antennas for Advanced Applications

Shady,

Sifat,

Ali

2024

J. Electron. Electric. Eng.

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This review delves into the crucial role of gap waveguide (GW) technology in advancing millimeter-wave (mm-wave) communication systems, specifically focusing on the exploration of beamforming components and antennas for advanced applications. With an emphasis on achieving high-data-rate and low-latency services, GW technology becomes instrumental in the development of cost-effective mm-wave solutions. The paper investigates practical applications, highlighting various components essential for beamforming antenna systems, including mm-wave antennas with diverse polarizations, power combining and dividing components like directional couplers, and beamforming feeding networks. These components collectively contribute to the comprehensive integration of a beamforming antenna system within the mm-wave frequency band. As the mobile communication landscape evolves, GW technology emerges as a key enabler for meeting the growing demands of consumers and technology in advanced applications, as detailed in this comprehensive review of GW solutions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Exploring Gap Waveguide Solutions: A Review of Millimeter-Wave Beamforming Components and Antennas for Advanced Applications

Shady,

Sifat,

Ali

2024

J. Electron. Electric. Eng.

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Topological State in Heterostructured Gap Waveguides and Their Transitions to Classical Transmission Line

Liao,

Zhang,

Wang

et al. 2024

Laser & Photonics Reviews

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Gap waveguides play a crucial role in millimeter‐wave information transmission and processing for next‐generation wireless communication and radar sensing systems. However, they suffer from challenges, such as reflection and scattering losses at sharp bends and defects. While topological photonic crystals offer innovative solutions for robust signal transmission, their localized interface states and unique electromagnetic modes pose compatibility challenges with practical circuits and systems. In this paper, a novel heterostructured gap waveguide support valley‐locked topological guided wave transport is introduced. This design ensures robust propagation against defects and bends while maintaining compatibility with classical transmission lines. Its topological characteristic reduce sensitivity to fabrication and assembly errors. More importantly, an efficient transition structure is developed to seamlessly convert quasi‐transverse electromagnetic (quasi‐TEM) modes in planar transmission lines to topological guided wave states, thereby effectively exciting topological waves. All theoretical predictions are quantitatively verified by the simulations and experiments at millimeter wave frequency. This heterostructured gap waveguide can find unique applications, such as power divider, as verified numerically. By leveraging topological principles, the proposed gap waveguide offers a significant performance boost for antennas and passive/active components in millimeter‐wave applications, including automotive radar, 5G communication, and synthetic‐aperture radar for imaging.

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Ridge Gap Waveguide Monopulse Comparator for Millimeter Wave Direction Finding Systems

AbdElraheem

Ali

Sebak

2023

2023 International Telecommunications Conference (ITC-Egypt)

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Gap Waveguide Technology: An Overview of Millimeter-Wave Circuits Based on Gap Waveguide Technology Using Different Fabrication Technologies

Cited by 5 publications

References 54 publications

Exploring Gap Waveguide Solutions: A Review of Millimeter-Wave Beamforming Components and Antennas for Advanced Applications

Exploring Gap Waveguide Solutions: A Review of Millimeter-Wave Beamforming Components and Antennas for Advanced Applications

Topological State in Heterostructured Gap Waveguides and Their Transitions to Classical Transmission Line

Ridge Gap Waveguide Monopulse Comparator for Millimeter Wave Direction Finding Systems

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