Balanced Reconfigurable Filter Using Liquid Metal

Romero‐Ramirez, Miguel‐Antonio; Olvera‐Cervantes, José‐Luis; Kataria, Tejinder Kaur; Corona‐Chávez, Alonso

doi:10.2528/pierl20012306

Cited by 3 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…EGaIn with PDMS is used as a liquid metal on a Roger RT/Duroid 5880 substrate. A third-order balanced reconfigurable bandpass microstrip filter operating in seven different bands was proposed in [35]. Sodium hydroxide (NAOH) is used as a liquid metal on a substrate Roger RT/Duroid 5880.…”

Section: Microfluidic Reconfigurable Filtersmentioning

confidence: 99%

A Recent Approach towards Fluidic Microstrip Devices and Gas Sensors: A Review

et al. 2022

View full text Add to dashboard Cite

This paper aims to review some of the available tunable devices with emphasis on the techniques employed, fabrications, merits, and demerits of each technique. In the era of fluidic microstrip communication devices, versatility and stability have become key features of microfluidic devices. These fluidic devices allow advanced fabrication techniques such as 3D printing, spraying, or injecting the conductive fluid on the flexible/rigid substrate. Fluidic techniques are used either in the form of loading components, switching, or as the radiating/conducting path of a microwave component such as liquid metals. The major benefits and drawbacks of each technology are also emphasized. In this review, there is a brief discussion of the most widely used microfluidic materials, their novel fabrication/patterning methods.

show abstract

Section: Microfluidic Reconfigurable Filtersmentioning

confidence: 99%

A Recent Approach towards Fluidic Microstrip Devices and Gas Sensors: A Review

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The switching for triple band filter is centered at 1 GHz, 1.4 GHz and 1.8 GHz, but it needs a biasing control mechanism for different liquid positions. Moreover, in their recent work, they used sodium hydroxide (NAOH) for seven state tunable bandpass filter [24]. The filter is also based on microstrip structure working on S band frequency with a low insertion loss between IL = 1.67 dB and IL = 2.17 dB.…”

Section: Introductionmentioning

confidence: 99%

RF MEMS filter based on dual liquid variations

Habbachi¹,

Besbes²

2022

J. Micromech. Microeng.

View full text Add to dashboard Cite

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.

show abstract

Mechanically reconfigurable cavity filters using liquid metals in the W-band

Gao,

Niu,

et al. 2024

Opt. Express

View full text Add to dashboard Cite

The high adaptability and flexibility of reconfigurable cavity filters (RCFs) provide a compelling solution for signal modulation in communication systems. However, current reports on these filters are predominantly concentrated within the frequency range of a few GHz. As communication frequencies continue to escalate, there is a pressing need for filters that can operate at higher frequencies. This study presents a mechanical RCF operating in the W-band (75-110 GHz) that address the need for high-frequency cavity filters. The reconfigurability of the filter is enhanced by adjusting the height of the liquid metal posts and interchanging different liquid metal (LM) media, thereby augmenting its tuning flexibility. During the experiment, we observed the potential dispersion effects of the LMs near 100 GHz, which were hypothetically validated. Finally, we tested the performance of the RCF with single or double LM tubes using a vector network analyzer to achieve consistency between the experimental and simulated results. This study offers a unique solution for sub-terahertz communication systems with critical requirements for dynamic filtering capabilities.

show abstract

Balanced Reconfigurable Filter Using Liquid Metal

Cited by 3 publications

References 17 publications

A Recent Approach towards Fluidic Microstrip Devices and Gas Sensors: A Review

A Recent Approach towards Fluidic Microstrip Devices and Gas Sensors: A Review

RF MEMS filter based on dual liquid variations

Mechanically reconfigurable cavity filters using liquid metals in the W-band

Contact Info

Product

Resources

About