A Miniaturized Microfluidically Reconfigurable Coplanar Waveguide Bandpass Filter With Maximum Power Handling of 10 Watts

Saghati, Alireza Pourghorban; Batra, Jaskirat Singh; Kameoka, Jun; Entesari, Kamran

doi:10.1109/tmtt.2015.2446477

Cited by 37 publications

(6 citation statements)

References 14 publications

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“…The spectral properties of an antenna are a function of its shape; thus the ability to both physically deform and manipulate the shape of liquid metal offers unique possibilities for tunable and reconfigurable antennas. Liquid metal injected into microchannels has been utilized to make many types of antennas including dipoles ( Figure a,b), loops (Figure c), coils and inductors (Figure d), patch antennas (Figure e), radio‐frequency antennas (Figure f), spherical caps, phase shifting coaxial transmission lines, monopoles, and reconfigurable antennas and filters . There are many more examples that utilize Hg.…”

Section: Stretchable Antennasmentioning

confidence: 99%

Stretchable and Soft Electronics using Liquid Metals

2017

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can be patterned into non-spherical shapes using both conventional and unconventional methods to form highly conductive, durable, and stretchable wires, interconnects, and antennas. The deformation limits of conductors formed with liquid metal are only limited -in principle -by the mechanical properties of the encasing material. The geometrical changes to the metal during deformation can be harnessed to form softer-than-skin sensors of strain and touch. Liquid metals can also be utilized as active components in memory devices, diodes, electrodes, and capacitors built entirely from soft materials. In addition, liquid metals can form circuits that are self-healing and shape-reconfigurable.There are many exciting and promising applications that harness the unique properties of liquid metals. Recent advances, opportunities, and challenges with liquid metals based on gallium within the context of stretchable and soft electronics are discussed here.

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Section: Stretchable Antennasmentioning

confidence: 99%

Stretchable and Soft Electronics using Liquid Metals

2017

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“…It has attractive characteristics: low melting temperature −19 • C, high electrical conductivity σ = 3.46 × 10 6 S m −1 , lower density than mercury, high boiling temperature, good thermal conductivity and good optical reflectivity. Galinstan has become the most widely used metallic conductive liquid in radiofrequency applications such as: antennas [29][30][31][32][33], RF filters [34][35][36][37][38], RF switches [39,40].…”

Section: Interest To Use As Filter: General Case and Liquid Actuation...mentioning

confidence: 99%

RF MEMS filter based on dual liquid variations

Habbachi¹,

Besbes²

2022

J. Micromech. Microeng.

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This paper discusses the behavior of RF MEMS tunable microwave filter. We have modeled the distribution of magnetic field and electric current density in order to reveal the comportment of each device and to evaluate the relation between the frequency response and the microwave performances. From several modelling and simulations, we catch the resonance phenomenon for magnetic and electric fields at different conditions. Hence, in order to develop a reconfigurable MEMS ensuring a function of tunable band-pass filters, we have identified conditions allowing to vary the resonance frequency from Fres = 0.42 GHz to Fres = 1.85 GHz ensuring a large total variation of Tr = 340.5%. The structure is fabricated using SU-8 resin for circulating microchannels and sealing layers. The extracted parameters from measurements results and retro-simulation reveal a diminution of the total tuning range.

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“…Bonding was established via oxygen plasma activation. Most of the prototypes, such as the AC impedance-based microfluidic cytometer [54], microfluidically reconfigurable coplanar waveguide (CPW) filter and folded slot antennas [55,56], reported in the literature belonged to the contactless detection group. By using a similar bonding technique, Wang et al [57] successfully embedded the Ion Sensitive Field Effect Transistor (ISFET)type Complementary Metal Oxide Semiconductor (CMOS) IC onto a PDMS microfluidic channel and produced an LOC via contact detection.…”

Section: Pdms Interfacingmentioning

confidence: 99%

Irreversible bonding techniques for the fabrication of a leakage-free printed circuit board-based lab-on-chip in microfluidic platforms—a review

Ali@Hasim

Ahaitouf

Abdullah

2021

Meas. Sci. Technol.

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Lab-on-chip (LOC) is recognised as one of the most affordable solutions for integrating electronics and fluidics devices. In this field, bonding plays a vital role because it provides the means for attaching multiple components onto a substrate, transforming them into a microfluidic circuit. Bonding is an integral step, especially when designing a device that is free from leakage and eventual clogging. A comprehensive review of the latest irreversible bonding technologies is discussed in this paper, in which the focus is on the layered microfluidic systems with large sensor arrays. This review covers microfluidic devices fabricated from a rigid-type glass–fibre-printed circuit board and a thermoplastic flexible printed circuit with 186 references whose development date back three decades ago. The bonding techniques are organised into the following four groups: (a) adhesive bonding, (b) thermal and solvent bonding, (c) surface modification and dry bonding and (d) photoresist groups. Other techniques are available beyond these groupings, but they can be classified into the nearest group to facilitate the discussion. This paper will benefit researchers and practitioners aiming to develop polymer-based LOC devices.

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A Miniaturized Microfluidically Reconfigurable Coplanar Waveguide Bandpass Filter With Maximum Power Handling of 10 Watts

Cited by 37 publications

References 14 publications

Stretchable and Soft Electronics using Liquid Metals

Stretchable and Soft Electronics using Liquid Metals

RF MEMS filter based on dual liquid variations

Irreversible bonding techniques for the fabrication of a leakage-free printed circuit board-based lab-on-chip in microfluidic platforms—a review

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