Design and analysis of two-dimensional parasitic liquid metal monopole array

Thews, Jonathan; O'Donnell, Alan; Michaels, Alan J.

doi:10.1109/milcom.2017.8170727

Cited by 4 publications

(6 citation statements)

References 5 publications

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“…For the former, there are beam switchable antennas and continuous beam steerable antennas [12], [132]- [133]. Beam switching is achieved using antennas such as the Yagi-Uda [123]- [128], or a focal plane array [129]- [130]. For the Yagi-Uda antennas [123]- [127], their direction of the beam as well as the direction of the null is controlled by altering the location of reflectors and directors.…”

Section: B Pattern Reconfigurable Antennasmentioning

confidence: 99%

Circuits and Antennas Incorporating Gallium-Based Liquid Metal

et al. 2023

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This paper reviews the application and technology advancement of Gallium (Ga)-based liquid metal (LM) in highfrequency circuits and antennas. It discusses the material properties of common liquid metals, the fluidic channels used to contain LM and their manufacturing techniques, and the actuation techniques, which are all critical for the design and implementation of LM-based devices. LM's fluidic and pliable nature, together with its excellent electrical, thermal, and rheological (i.e. fluid flow) properties, provides some unique and innovative solutions to flexible/wearable electronics, reconfigurable circuits and antennas. The paper provides a comprehensive review of a wide range of LM-enabled highfrequency circuits and antennas, including: interconnects and transitions, reconfigurable passive circuits (such as resonators, filters, and couplers), switches, phase shifters, reconfigurable antennas, flexible and wearable antennas, and metamaterials (i.e. periodic materials with properties not found in nature). The paper presents various design concepts and implementation techniques, highlights key capabilities, discusses the challenges and opportunities with the use of Ga-based liquid metal materials.

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Section: B Pattern Reconfigurable Antennasmentioning

confidence: 99%

Circuits and Antennas Incorporating Gallium-Based Liquid Metal

et al. 2023

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“…This Galinstan filled channel, depending on length, materializes an element of a vertically polarized Yagi-Uda array, as in. 7,9,10 Those elements are the drive antenna at the center, two directors on one side and one reflector on the other. The materialization of the array transforms the antenna's omnidirectional radiation pattern, Figure 2(A), into a directional one, Figure 2(B).…”

Section: System's Architecture and Simulationsmentioning

confidence: 99%

“…When voltage is applied to a channel, Figure 1(B), the rise of slugs from their tanks to the top electrode is triggered. This Galinstan filled channel, depending on length, materializes an element of a vertically polarized Yagi‐Uda array, as in 7,9,10 . Those elements are the drive antenna at the center, two directors on one side and one reflector on the other.…”

Section: System's Architecture and Simulationsmentioning

confidence: 99%

“…Use of liquid metal in antenna is becoming widespread, with multiple examples in the literature such as in. [3][4][5][6][7][8][9][10] However, vertically actuated liquid metal antenna are less common, with examples reported in. 2,7 Section 2 presents the system's architecture and simulations; Section 3 the Fluidic proof of concept; Section 4 the RF proof of concept; and conclusions in Section 5.…”

Section: Introductionmentioning

confidence: 99%

“…This hybrid system has no moving parts except liquid metal and uses a simple electrical command. Use of liquid metal in antenna is becoming widespread, with multiple examples in the literature such as in 3‐10 . However, vertically actuated liquid metal antenna are less common, with examples reported in 2,7 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

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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.

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