A Split Ring Resonator-Based Metamaterial for Microwave Impedance Matching with Biological Tissue

Portosi, Vincenza; Loconsole, Antonella Maria; Prudenzano, Francesco

doi:10.3390/app10196740

Cited by 16 publications

(4 citation statements)

References 37 publications

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“…Impedance matching is achieved when the overall reflection coefficient of numerous layers is equal to zero. The distance between the antenna and the metasurface must be considered to lower the overall reflection coefficient [37].…”

Section: Complete Design Of the Antenna And Fss Layersmentioning

confidence: 99%

Detection of breast tumor with a frequency selective surface loaded ultra-wide band antenna system

Ullah,

Abdulkarim,

Wang

et al. 2024

Phys. Scr.

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Breast tumors are a significant cause to the global death rate among women. However, the fatality rate can be lowered through early detection. This paper presents an ultra-wideband, modified patch antenna of a compact size that can be used for microwave-sensing biomedical applications in the detection of breast cancer. A partial ground plane and slots are implemented in a transformed patch antenna to enhance the impedance bandwidth. The antenna is backed by a uniform frequency selective surface of 5 × 5 unit cells to achieve the necessary antenna characteristics, specifically directivity and gain, for microwave detection applications. Through optimization and fabrication, the final design maintained (|S11|< −10 dB) over the entire frequency band of 11.6 GHz (3.1–14.7 GHz) and achieved an average gain of over 5 dBi. Other metrics, such as group delay and the fidelity factor in different setups, are also simulated to observe the expected performance in the required frequency range. Finally, based on simulation, a model is suggested that comprises various configurations of antenna arrays, including one Tx antenna and one to seven Rx antennas. Further, breast phantom with different tumor sizes and locations were used in the simulation. The simulation results successfully validated the detection of breast cancer cells. We believe these technologies can open possibilities in healthcare applications for identifying tumors.

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Section: Complete Design Of the Antenna And Fss Layersmentioning

confidence: 99%

Detection of breast tumor with a frequency selective surface loaded ultra-wide band antenna system

Ullah,

Abdulkarim,

Wang

et al. 2024

Phys. Scr.

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“…Biomolecule detection is also performed with a split ring resonator-based antenna design. The antenna designed using a split ring resonator not only senses the biomolecule but also gives good impedance matching [8].…”

Section: Of 16mentioning

confidence: 99%

O-Shape Fractal Antenna Optimized Design with Broad Bandwidth and High Gain for 6G Mobile Communication Devices

Patel,

Baz

2023

Fractal Fract

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Optimization of antenna parameters is important for achieving the best design that has higher results for gain and bandwidth while also having a smaller size. One such antenna design is numerically investigated and presented in this research. The antenna is optimized to an O-shape fractal design from a square patch design. The antenna is created by etching a slot of a square patch and making an O-shape fractal metamaterial patch antenna that operates on the THz band. The THz patch antenna is also investigated for its metamaterial properties. The optimization of the THz patch antenna is carried out for substrate height, slot length, and slot width. The optimized design has a size of 65 × 65 µm2. The highest bandwidth of 31.4 THz (138%) and the highest gain of 11.1 dBi is achieved. The optimized design is then investigated for multiple elements. The two-element MIMO antenna design using an O-shape patch is investigated to observe its performance and compare it with an O-shape single-element design. The two-element MIMO antenna design gives two bands with a bandwidth of 18 THz (113%) and 21 THz (56%). The gain of this design is 5.18 dBi and the size is 130 × 65 µm2. A comparison between the O-shape single-element fractal design, two-element fractal MIMO design, and other published designs is carried out. The compact, broadband, and high gain design presented can be used for 6G high-speed mobile communication devices.

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“…The concept of metamaterial antennas for biomedical applications and metamaterials for biomedical antennas has been introduced recently in the literature. Layers of subwavelength metallic structures, such as crosses and split-ring resonators (SRRs) [21], have been proposed to enhance the EM coupling with the targeted tissue by achieving impedance matching for applications such as brain stroke detection [26,27] and glucose monitoring [28]. SRRs have also been used to introduce capacitive and inductive resonance properties to a biomedical sensing antenna.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic metamaterials for biomedical applications: short review and trends

Tzarouchis,

Koutsoupidou,

Sotiriou

et al. 2024

EPJ Appl. Metamat.

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This mini-review examines the most prominent features and usages of metamaterials, such as metamaterial-based and metamaterial-inspired RF components used for biomedical applications. Emphasis is given to applications on sensing and imaging systems, wearable and implantable antennas for telemetry, and metamaterials used as flexible absorbers for protection against extreme electromagnetic (EM) radiation. A short discussion and trends on the metamaterial composition, implementation, and phantom preparation are presented. This review seeks to compile the state-of-the-art biomedical systems that utilize metamaterial concepts for enhancing their performance in some form or another. The goal is to highlight the diverse applications of metamaterials and demonstrate how different metamaterial techniques impact EM biomedical applications from RF to THz frequency range. Insights and open problems are discussed, illuminating the prototyping process.

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A Split Ring Resonator-Based Metamaterial for Microwave Impedance Matching with Biological Tissue

Cited by 16 publications

References 37 publications

Detection of breast tumor with a frequency selective surface loaded ultra-wide band antenna system

Detection of breast tumor with a frequency selective surface loaded ultra-wide band antenna system

O-Shape Fractal Antenna Optimized Design with Broad Bandwidth and High Gain for 6G Mobile Communication Devices

Electromagnetic metamaterials for biomedical applications: short review and trends

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