RF-MEMS Technology and Beamforming in 5G: Challenges and Opportunities for a Pair with a Still Untapped Potential

Tagliapietra, Girolamo; Iannacci, Jacopo

doi:10.1007/978-981-19-2308-1_44

Cited by 4 publications

(2 citation statements)

References 46 publications

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“…It quantifies the amount of signal power lost as it passes through the switch, and it is a key consideration in applications where signal integrity is paramount, such as in RF (Radio Frequency) and microwave circuits. Insertion loss is typically expressed in decibels (dB) and is denoted as IL [47,48]. The insertion loss in MEMS switches primarily arises from the resistive, capacitive, and inductive components introduced by the switch during the transmission of signals.…”

Section: Insertion Lossmentioning

confidence: 99%

MEMS Switch Realities: Addressing Challenges and Pioneering Solutions

Kurmendra,

Agarwal

2024

Micromachines

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Micro-Electro-Mechanical System (MEMS) switches have emerged as pivotal components in the realm of miniature electronic devices, promising unprecedented advancements in size, power consumption, and versatility. This literature review paper meticulously examines the key issues and challenges encountered in the development and application of MEMS switches. The comprehensive survey encompasses critical aspects such as material selection, fabrication intricacies, performance metrics including switching time and reliability, and the impact of these switches on diverse technological domains. The review critically analyzes the influence of design parameters, actuation mechanisms, and material properties on the performance of MEMS switches. Additionally, it explores recent advancements, breakthroughs, and innovative solutions proposed by researchers to address these challenges. The synthesis of the existing literature not only elucidates the current state of MEMS switch technology but also paves the way for future research avenues. The findings presented herein serve as a valuable resource for researchers, engineers, and technologists engaged in advancing MEMS switch technology, offering insights into the current landscape and guiding future endeavors in this rapidly evolving field.

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Section: Insertion Lossmentioning

confidence: 99%

MEMS Switch Realities: Addressing Challenges and Pioneering Solutions

Kurmendra,

Agarwal

2024

Micromachines

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“…Variable attenuators realized by means of RF Micro Electro-Mechanical Systems (RF-MEMS) are gaining an increasing popularity since the abovementioned features can be effectively addressed by such technology [21][22][23]. Digital [24] and analog [16] architectures have been explored for the developed RF-MEMS attenuators, with digital being the predominant choice [25]. Key sought-after attributes for these devices include reconfigurability, broadband performance, and excellent linearity [26].…”

Section: Introductionmentioning

confidence: 99%

Discussion and Demonstration of RF-MEMS Attenuators Design Concepts and Modules for Advanced Beamforming in the Beyond-5G and 6G Scenario—Part 2

Tagliapietra,

Giacomozzi,

Michelini

et al. 2024

Preprint

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In this paper, different concepts of reconfigurable RF-MEMS attenuators for beamforming applications are proposed and critically assessed. Capitalizing on the previous part of this work, the 1-bit attenuation modules featuring series and shunt resistors and low-voltage membranes (7-9 V) are employed to develop a 3-bit attenuator for fine-tuning attenuations (&lt; -10 dB) in the 24.25-27.5 GHz range. More substantial attenuation levels are investigated by means of fabricated samples of coplanar waveguide (CPW) sections equipped with Pi-shaped resistors aiming at attenuations of -15, -30, and -45 dB. The remarkable electrical features of such configurations, showing flat attenuation curves and limited return losses, and the investigation of a switched-line attenuator design based on them led to the final proposed concept of a low-voltage 24-state attenuator. Such simulated device combines the Pi-shaped resistors for substantial attenuations with the 3-bit design for fine-tuning operations, showing a maximum attenuation level of nearly -50 dB while maintaining steadily flat attenuation levels and limited return losses (< -11 dB) along the frequency band of interest.

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A Modular and Compact RF-MEMS Step Attenuator for Beamforming Applications in the Evolving 5G/6G Scenario

Tagliapietra,

Iannacci

2023

Lecture Notes in Electrical Engineering

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RF-MEMS Technology and Beamforming in 5G: Challenges and Opportunities for a Pair with a Still Untapped Potential

Cited by 4 publications

References 46 publications

MEMS Switch Realities: Addressing Challenges and Pioneering Solutions

MEMS Switch Realities: Addressing Challenges and Pioneering Solutions

Discussion and Demonstration of RF-MEMS Attenuators Design Concepts and Modules for Advanced Beamforming in the Beyond-5G and 6G Scenario—Part 2

A Modular and Compact RF-MEMS Step Attenuator for Beamforming Applications in the Evolving 5G/6G Scenario

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