Isolation Enhancement for Vivaldi Antennas Using Hyperbolic Metasurface

Zhang, Hong; Wang, Jiafu; Han, Yajuan; Zhu, Ruichao; Liu, Tonghao; Fu, Xinmin; Liu, Chao; Li, Yongfeng; Chu, Zuntian; Qu, Shaobo

doi:10.1109/tap.2023.3287686

Cited by 4 publications

(5 citation statements)

References 32 publications

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“…A parameter analysis is carried out on the W 1 and L 1 dimensions of the antenna to determine the impact of the radiating element's size on its performance, aiming to identify the optimal antenna length. This approach also allows for the study of the interplay between the cavity and the antenna, as well as the search for the optimal performance of the antenna [12,16,18].…”

Section: Antenna Parameterisation Processmentioning

confidence: 99%

“…Vivaldi has attracted attention due to its array featuring a wide scanning angle and ultra-wide bandwidth [10]. Recently, the frequency band from 30 to 300 GHz has been considered the key to addressing the data explosion in 5G/6G systems [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…Vivaldi is a type of continuously scaled antenna, utilised in wideband wireless communication due to its large bandwidth and small lateral aperture among other prominent features [8]. The Vivaldi antenna has a compact footprint and features lower power consumption and complexity [2,12]. While there are other types of wideband antennas, the Vivaldi antenna has advantages over others in terms of weight, cost, end-fire radiation, and scanning angle capabilities, particularly in the simplicity of integrating the system [8,12,14].…”

Section: Introductionmentioning

confidence: 99%

“…The Vivaldi antenna has a compact footprint and features lower power consumption and complexity [2,12]. While there are other types of wideband antennas, the Vivaldi antenna has advantages over others in terms of weight, cost, end-fire radiation, and scanning angle capabilities, particularly in the simplicity of integrating the system [8,12,14]. However, in systems such as radar, communication, and various electronic devices, space is often at a premium.…”

Section: Introductionmentioning

confidence: 99%

“…The operational principle of the Vivaldi antenna often leads to significant mutual coupling among neighbouring elements, primarily due to space-wave coupling. It can lead to adverse consequences, such as reduced antenna efficiency and inaccurate radiation patterns [12]. However, to enhance the gain of the antenna, researchers have proposed various methods.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A Wide Bandwidth Vivaldi Antenna Suitable for 5G/6G Communication Utilizing a CMOS 0.18 μm Process

Chung,

Ting,

Tseng

2024

Telecom

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This text proposes a Vivaldi structure array antenna, using a power divider structure. The composition includes an antenna array with four antennas, suitable for a wideband array structure antenna in the 100 GHz frequency band. The goal is to address the challenges faced by monolithic systems in modern wireless communications, particularly the issue of the inapplicability of antennas on silicon substrates. The Vivaldi antenna was chosen for its wide bandwidth, high efficiency, and stable radiation pattern. It combines the characteristics of a wide scanning angle and ultra-wide bandwidth. Through integration with CMOS technology, the developed antenna achieved a bandwidth of 85.47–102.40 GHz. The peak gain reached −4 dBi, corresponding to a bandwidth of 17.7%. And the antenna volume was only 1.2 mm × 1.2 mm, demonstrating its immense potential in high-frequency wireless applications.

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Section: Antenna Parameterisation Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Wide Bandwidth Vivaldi Antenna Suitable for 5G/6G Communication Utilizing a CMOS 0.18 μm Process

Chung,

Ting,

Tseng

2024

Telecom

View full text Add to dashboard Cite

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A high-gain millimeter-wave filtering antipodal Vivaldi antenna based on SSPP structure

Li,

Guo,

et al. 2024

AEU - International Journal of Electronics and Communications

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Electromagnetic compatibility study of trackside antenna array miniaturization in the subway tunnel

Zhou,

Xu,

et al. 2024

Phys. Scr.

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To improve the compatibility of the subway tunnel’s electromagnetic environment and reduce the radiation impact of trackside antennas on subway workers. This paper proposes a miniaturized dual-band trackside antenna array by using metamaterial units. Its operation bandwidth is 2.33~2.56 GHz and 3.24~3.45 GHz, which could simultaneously satisfy the signal cover demands of the communications-based train control (CBTC) and the civil 5G wireless communication system. The proposed miniaturized antenna array has a maximum gain of 14.4 dBi and a maximum channel capacity of 13.9 bps/Hz at a signal-to-noise ratio (SNR) of 20 dB, which can effectively improve the quality of wireless communication systems. The number of trackside antennas with a single operation frequency band is reduced, and the distance between the antennas is enlarged at the same time. Besides that, we analyze the radiation impact on the tunnel electromagnetic environment of the proposed trackside antenna array. In particular, the electromagnetic dose absorbed by the human model of a tunnel worker is quantized. The results show that the electric field strength in the tunnel reduces by 4.11% at least after antenna array miniaturization, and the specific absorption rate (SAR) absorbed by the worker model's trunk, skull, brain, heart, and liver is reduced by a maximum of 19.02%, 33.16%, 28.27%, 41.75%, and 74.54%, respectively, further lowering the human electromagnetic exposure risk. Therefore, a miniaturized trackside antenna array could reduce the interference from other radiation sources in the tunnel while providing a new idea for electromagnetic protection for subway workers.

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Isolation Enhancement for Vivaldi Antennas Using Hyperbolic Metasurface

Cited by 4 publications

References 32 publications

A Wide Bandwidth Vivaldi Antenna Suitable for 5G/6G Communication Utilizing a CMOS 0.18 μm Process

A Wide Bandwidth Vivaldi Antenna Suitable for 5G/6G Communication Utilizing a CMOS 0.18 μm Process

A high-gain millimeter-wave filtering antipodal Vivaldi antenna based on SSPP structure

Electromagnetic compatibility study of trackside antenna array miniaturization in the subway tunnel

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