Analysis on Selection of Beam Material for Novel Step Structured RF-MEMS Switch used for Satellite Communication Applications

Sravani, K. Girija; Rao, K. Srinivasa

doi:10.1007/s42341-018-0068-y

Cited by 27 publications

(2 citation statements)

References 12 publications

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“…RF MEMS switches still face some challenges and limitations [118,[191][192][193], despite their great potential in satellite communications [194,195]. For instance, the reliability and RF performance of these switches in extreme environments still require further research and improvement.…”

Section: Discussionmentioning

confidence: 99%

Comprehensive Review of RF MEMS Switches in Satellite Communications

Shao,

Lu,

Xiang

et al. 2024

Sensors

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The miniaturization and low power consumption characteristics of RF MEMS (Radio Frequency Microelectromechanical System) switches provide new possibilities for the development of microsatellites and nanosatellites, which will play an increasingly important role in future space missions. This paper provides a comprehensive review of RF MEMS switches in satellite communication, detailing their working mechanisms, performance optimization strategies, and applications in reconfigurable antennas. It explores various driving mechanisms (electrostatic, piezoelectric, electromagnetic, thermoelectric) and contact mechanisms (capacitive, ohmic), highlighting their advantages, challenges, and advancements. The paper emphasizes strategies to enhance switch reliability and RF performance, including minimizing the impact of shocks, reducing driving voltage, improving contacts, and appropriate packaging. Finally, it discusses the enormous potential of RF MEMS switches in future satellite communications, addressing their technical advantages, challenges, and the necessity for further research to optimize design and manufacturing for broader applications and increased efficiency in space missions. The research findings of this review can serve as a reference for further design and improvement of RF MEMS switches, which are expected to play a more important role in future aerospace communication systems.

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Section: Discussionmentioning

confidence: 99%

Comprehensive Review of RF MEMS Switches in Satellite Communications

Shao,

Lu,

Xiang

et al. 2024

Sensors

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“…Radio Frequency MEMS is currently an emerging technology in the field of design of switching devices. RF MEMS switches have certain advantages over FET and PIN diodes such as less power consumption, sufficient isolation, and fewer transmission losses, which makes them suitable for high‐frequency satellite communication applications 1 . Though radio frequency MEMS switches have many favorable features, it is yet to compete in the market due to poor reliability 2 .…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of enhanced capacitive radio frequency MEMS switch based on Nb₂O₅ and HfO₂ dielectric for satellite payload applications

Narzary

Kumar

Bhattacharjee

et al. 2020

Trans Emerging Tel Tech

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An innovative capacitive radio frequency MEMS shunt switch with a unique shaped spring is designed and analyzed using COMSOL Multiphysics 5.4. The proposed switch using Hafnium oxide (HfO 2) and Niobium pentoxide (Nb 2 O 5) as the dielectric material between the transmission line and the deflecting gold membrane provides certain advantageous benefits with respect to performance parameters such as low actuation voltage, less spring constant, good isolation, low insertion loss, small size, and high capacitance ratio compared to other designs. A combination of three-turn meander and C-shaped spring having a spring constant of 0.186 N/m helps in achieving convenient actuation voltage. For 1, 1.5, and 2 μm air gaps, the actuation voltages required to bring the switch to ON mode are 1.77, 3.24, and 4.96 V respectively with Nb 2 O 5 as the dielectric layer and 1.8, 3.28, and 5.01 V respectively with HfO 2 as the dielectric layer respectively. At 2-μm air gap, the capacitance ratio is 329 for Nb 2 O 5 and 113 for HfO 2. RF analysis using ANSYS HFSS software shows the isolation of −19.41 dB at 11 GHz and insertion loss as low as −0.27 dB at 15 GHz. The proposed switch operating within the range of 1 to 30 GHz gives optimum results compared to other devices and is suitable for wireless communication and satellite payload applications.

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Comparison of Different TFETs

Satya,

Rao,

Rao

2024

Integrated Devices for Artificial Intelligence and VLSI

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Analysis on Selection of Beam Material for Novel Step Structured RF-MEMS Switch used for Satellite Communication Applications

Cited by 27 publications

References 12 publications

Comprehensive Review of RF MEMS Switches in Satellite Communications

Comprehensive Review of RF MEMS Switches in Satellite Communications

Design and analysis of enhanced capacitive radio frequency MEMS switch based on Nb₂O₅ and HfO₂ dielectric for satellite payload applications

Comparison of Different TFETs

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Analysis on Selection of Beam Material for Novel Step Structured RF-MEMS Switch used for Satellite Communication Applications

Cited by 27 publications

References 12 publications

Comprehensive Review of RF MEMS Switches in Satellite Communications

Comprehensive Review of RF MEMS Switches in Satellite Communications

Design and analysis of enhanced capacitive radio frequency MEMS switch based on Nb2O5 and HfO2 dielectric for satellite payload applications

Comparison of Different TFETs

Contact Info

Product

Resources

About

Design and analysis of enhanced capacitive radio frequency MEMS switch based on Nb₂O₅ and HfO₂ dielectric for satellite payload applications