A Circular Beam-Steering Antenna With Parasitic Water Reflectors

Xing, Lei; Zhu, Jiajia; Xu, Qian; Yan, Dandan; Zhao, Yongjiu

doi:10.1109/lawp.2019.2938872

Cited by 60 publications

(38 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…11 A similar radial distribution of vertical fluidic channels can be found in. 15 The microfluidic COP chips working principle is inspired by the work presented in. 6,8,14 Figures 1 (B), (C) describes how the system works.…”

Section: System's Architecture and Simulationsmentioning

confidence: 99%

Concept of vertical liquid metal actuated cyclo‐olefin‐polymer based embedded 360° steerable Yagi‐Uda antenna

Goff

Quéré

Maalouf

et al. 2021

Micro & Optical Tech Letters

View full text Add to dashboard Cite

The concept of a reconfigurable 5GHz microfluidically actuated antenna with beam forming, steering and hoping in a 360 angular range, is presented in this paper. Its architecture is that of a Yagi-Uda array. Its actuation relies on the electrically controlled vertical displacement of liquid metal slugs inside microfluidic channels without the need of any external actuator. Simulations results along two fabricated proofs of concept investigating RF and microfluidic actuation performances are presented. This paper aims at demonstrating the technical soundness and interest of this design for applications such as autonomous sensors networks.

show abstract

Section: System's Architecture and Simulationsmentioning

confidence: 99%

Concept of vertical liquid metal actuated cyclo‐olefin‐polymer based embedded 360° steerable Yagi‐Uda antenna

Goff

Quéré

Maalouf

et al. 2021

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…This antenna operates in the 5.7 GHz band. Similarly, in Reference [59], a sea-water based monopole antenna was surrounded by 12 parasitic cylinders which can be individually filled with water to realize a 360 • beam steering. The proposed antenna operates within the range of 334 to 488 MHz with a radiation efficiency of more than 60%, although no frequency tuning was demonstrated.…”

Section: Antenna Geometry Variationsmentioning

confidence: 99%

“…Liquid dielectric based antennas of various geometries. (a)[54,55], (b)[56][57][58][59][60][61], (c)[53], (d)[62], (e)[63].…”

mentioning

confidence: 99%

A Review on Reconfigurable Liquid Dielectric Antennas

Motovilova

Huang

2020

Materials

View full text Add to dashboard Cite

The advancements in wireless communication impose a growing range of demands on the antennas performance, requiring multiple functionalities to be present in a single device. To satisfy these different application needs within a limited space, reconfigurable antennas are often used which are able to switch between a number of states, providing multiple functions using a single antenna. Electronic switching components, such as PIN diodes, radio-frequency micromechanical systems (RF-MEMS), and varactors, are typically used to achieve antenna reconfiguration. However, some of these approaches have certain limitations, such as narrow bandwidth, complex biasing circuitry, and high activation voltages. In recent years, an alternative approach using liquid dielectric materials for antenna reconfiguration has drawn significant attention. The intrinsic conformability of liquid dielectric materials allows us to realize antennas with desired reconfigurations with different physical constraints while maintaining high radiation efficiency. The purpose of this review is to summarize different approaches proposed in the literature for the liquid dielectric reconfigurable antennas. It facilitates the understanding of the advantages and limitations of this technology, and it helps to draw general design principals for the development of reconfigurable antennas in this category.

show abstract

“…It is worth noting that seawater, albeit much less conductive than metal, has been demonstrated a radiation efficiency of 70% by Mitsubishi Electric [7 ], and a research group from Nanjing University of Aeronautics and Astronautics in China have even developed an advanced saltwater‐based antenna to achieve 360‐degree beam‐steering that works for frequencies between 334 to 488 MHz [8, 9 ].…”

Section: What Is Fluid Antenna?mentioning

confidence: 99%

Fluid Antenna System for 6G: When Bruce Lee Inspires Wireless Communications

et al. 2020

View full text Add to dashboard Cite

Since its inception, multiple-input multiple-output (MIMO) has become a magical technology that continues to break new grounds and deliver the needed upgrades in mobile communications. The emerging 5G systems are also being labelled by many as the massive MIMO generation. This somewhat oversimplified view is perhaps a reflection of the great impact MIMO has had on our generation of mobile communication networks. Although the technologies have evolved in the past decades, the principle remains the same-to exploit the diversity of different copies of signals at independent locations for reducing the degree of fading and randomness of wireless channels. Through signal processing and coding, the diversity has been translated successfully into capacity gain and enhancement in other forms of the quality-of-service. This article identifies "fluid" antenna as a trending technology that may succeed MIMO and become a reality to transform wireless communications to a new height. Fluid antenna is a radical approach that advocates software-controlled position-flexible shape-flexible antenna. The concept liberates antennas to unleash massive diversity inherent in the small space of a mobile device and makes possible new opportunities that were previously unthinkable. This article attempts to be imaginative and aims to take readers on a short journey of what fluid antenna might bring in future-generation mobile communications systems and speculate on its impact.

show abstract

A Circular Beam-Steering Antenna With Parasitic Water Reflectors

Cited by 60 publications

References 17 publications

Concept of vertical liquid metal actuated cyclo‐olefin‐polymer based embedded 360° steerable Yagi‐Uda antenna

Concept of vertical liquid metal actuated cyclo‐olefin‐polymer based embedded 360° steerable Yagi‐Uda antenna

A Review on Reconfigurable Liquid Dielectric Antennas

Fluid Antenna System for 6G: When Bruce Lee Inspires Wireless Communications

Contact Info

Product

Resources

About