Reconfigurable quarter-mode SIW antenna employing a fluidically switchable via

Saghati, Ali Pourghorban; Kordmahale, Sina Baghbani; Saghati, Alireza Pourghroban; Kameoka, Jun; Entesari, Kamran

doi:10.1109/aps.2016.7696131

Cited by 7 publications

(9 citation statements)

References 7 publications

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“…Next, a frequency-switchable antenna using metallic fluid and via was presented in [ 49 ]. The switchable antenna is designed based on a quarter-mode substrate integrated waveguide (QMSIV).…”

Section: Design Concepts Of Nontoxic Liquid Metal Reconfigurable Amentioning

confidence: 99%

“…Results have also indicated that this pixelated antenna did not affect the radiation pattern at the resonant frequencies compared to the measurement of the baseline planar dipole made using copper. Next, a frequency-switchable antenna using metallic fluid and via was presented in [49]. The switchable antenna is designed based on a quarter-mode substrate integrated waveguide (QMSIV).…”

Section: Other Frequency Reconfiguration Techniquesmentioning

confidence: 99%

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Liquid-Based Reconfigurable Antenna Technology: Recent Developments, Challenges and Future

Bakar

Rahim

Soh

et al. 2021

Sensors

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Advances in reconfigurable liquid-based reconfigurable antennas are enabling new possibilities to fulfil the requirements of more advanced wireless communication systems. In this review, a comparative analysis of various state-of-the-art concepts and techniques for designing reconfigurable antennas using liquid is presented. First, the electrical properties of different liquids at room temperature commonly used in reconfigurable antennas are identified. This is followed by a discussion of various liquid actuation techniques in enabling high frequency reconfigurability. Next, the liquid-based reconfigurable antennas in literature used to achieve the different types of reconfiguration will be critically reviewed. These include frequency-, polarization-, radiation pattern-, and compound reconfigurability. The current concepts of liquid-based reconfigurable antennas can be classified broadly into three basic approaches: altering the physical (and electrical) dimensions of antennas using liquid; applying liquid-based sections as reactive loads; implementation of liquids as dielectric resonators. Each concept and their design approaches will be examined, outlining their benefits, limitations, and possible future improvements.

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Section: Design Concepts Of Nontoxic Liquid Metal Reconfigurable Amentioning

confidence: 99%

Section: Other Frequency Reconfiguration Techniquesmentioning

confidence: 99%

Liquid-Based Reconfigurable Antenna Technology: Recent Developments, Challenges and Future

Bakar

Rahim

Soh

et al. 2021

Sensors

View full text Add to dashboard Cite

show abstract

“…To finalize the fabrication of 3D printed molds, they were exposed to light curing, thermal curing for 72 hours at 65°C in the oven, and the silane gas as the surface treatment, respectively. Siliconization can make the surface more hydrophobic through the inclusion of silane gas [48] [49]. The two parts of the 3D printed molds are illustrated in the figure.…”

Section: Fabricationmentioning

confidence: 99%

“…The final step of the fabrication was to assemble the microhand's parts and finalize the device. For the square shape device, the previously fabricated structure was bonded on a plate of cured PDMS by using oxygen plasma treatment and water as the bonding liquid [48] [49]. When the water evaporates eventually, the strong hermetic bond formed between two pieces of cured PDMS, and the whole cavity and device formed successfully.…”

Section: Fabricationmentioning

confidence: 99%

A Hydraulic Soft Microhand with an Application of Live Insect Manipulation

Kordmahale¹,

Qu²,

Muliana³

et al. 2021

Preprint

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We have developed micro scale hydraulic/pneumatic soft grippers and demonstrated the handling of an insect. These grippers are built on Polydimethylsiloxane (PDMS) with the soft material casting technique to form three finger-like columns, which are placed on a circular membrane. The fingers have a length of 1.5mm/2mm and a diameter of 300µm each; the distance between two fingers is 600µm of center-to-center distance. Membrane is built as a 150µm soft skin on the top of a cylindrical void. Applying a pressure difference between the interior of the void and the exterior can bend the membrane. Bending the membrane causes the motion of opening/closing of the gripper, and as a result, the three fingers can grip an object or release it. The PDMS was characterized and the experimental results were used later in Abaqus software to simulate the gripping motion. The produced force and range of deformation of the grippers were investigated by simulation and experiment. The results of the simulation agrees with the experiments. The maximum 543 µN force was measured for the microfluidic compatible microgrippers.Using this microhand gripper, the an ant was manipulated successfully without any damage. Results showed fabricated devices have great potential as a micro/bio manipulator.

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“…(c) Bottom side pixel: 'off' state on the left side. (d) Side view [48].Next, a frequency-switchable antenna using metallic fluid and vias was presented in[54]. The switchable antenna is designed based on a quarter-mode substrate integrated waveguide (QMSIV)…”

mentioning

confidence: 99%

Liquid-Based Reconfigurable Antenna Technology: Recent Developments, Challenges and Future

Bakar

Rahim

Soh

et al. 2020

Preprint

View full text Add to dashboard Cite

Advances in reconfigurable liquid-based reconfigurable antennas are enabling new possibilities to fulfil the requirements of more advanced wireless communication systems. In this review, a comparative analysis of various state-of-the-art concepts and techniques for designing reconfigurable antennas using liquid is presented. First, the electrical properties of different liquids at room temperature commonly used in reconfigurable antennas are identified. This is followed by a discussion of various liquid actuation techniques in enabling high frequency reconfigurability. Next, liquid-based reconfigurable antennas in literature used to achieve the different types of reconfiguration will be critically reviewed. These include frequency-, polarization-, radiation pattern- and compound reconfigurability. The current concepts of liquid-based reconfigurable antennas can be classified broadly into three basic approaches: altering the physical (and electrical) dimensions of antennas using liquid, applying liquid-based sections as reactive loads; and implementation of liquids as dielectric resonators. Each concept and their design approaches will be examined, outlining their benefits, limitations, and possible future improvements.

show abstract

Reconfigurable quarter-mode SIW antenna employing a fluidically switchable via

Cited by 7 publications

References 7 publications

Liquid-Based Reconfigurable Antenna Technology: Recent Developments, Challenges and Future

Liquid-Based Reconfigurable Antenna Technology: Recent Developments, Challenges and Future

A Hydraulic Soft Microhand with an Application of Live Insect Manipulation

Liquid-Based Reconfigurable Antenna Technology: Recent Developments, Challenges and Future

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