The Sky's the Limit: A Switchable RF-MEMS Filter Design for Wireless Avionics Intracommunication

Shojaei-Asanjan, Desireh; Mansour, Raafat R.

doi:10.1109/mmm.2016.2616195

Cited by 12 publications

(3 citation statements)

References 1 publication

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“…Filters are widely used in the fields of home TV, mobile communication, and radar because of their simple structure, few mask layers, easy miniaturization, and low cost [145]. For example, two dual-mode filters are used in literature [146], which have good return loss due to the coupling between the input/output and the two resonators, which introduces transmission zeros and helps to improve the filter rejection. It is believed that with the continuous support of various technologies and the integration of filters, the performance of filters will continue to improve, higher frequency bands will be available, and the percentage of electronic devices such as cellular phones will increase, bringing more convenience to our lives.…”

Section: Mobile Communications For the Iotmentioning

confidence: 99%

A review of research on RF MEMS for metaverse interactions

Nan,

Jia,

et al. 2024

J. Micromech. Microeng.

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Metaverse as a comprehensive integration of multiple digital technologies of the new generation, enables human beings to bring unprecedented immersive experiences with the support of virtual reality, augmented reality, blockchain, digital twin, Artificial Intelligence, haptic IoT, and human-computer interaction. In view of the urgent need for high-speed and high-capacity data transmission as well as high integration, RF MEMS devices have become the core components for metaverse system building due to their advantages of miniaturization, high integration, and low power consumption. Playing a pivotal role in real-time high-capacity data transmission and signal processing in metaverse interactive systems, the low cost and high performance of RF MEMS devices have once again become the focus of attention for people from all walks of life. Therefore, this paper focuses on the working principles and performance optimization of RF MEMS devices. Firstly, the classification and basic principles of RF MEMS devices are introduced, followed by the advanced fabrication technology and optimization scheme of MEMS devices, and then the advanced applications of RF MEMS devices in the field of metaverse are discussed in focus, including IoT mobile communication, Artificial Intelligence, and flexible wearables. Finally, the prospects and potential challenges for the development of RF MEMS devices interacting with the metaverse are summarized and discussed.

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Section: Mobile Communications For the Iotmentioning

confidence: 99%

A review of research on RF MEMS for metaverse interactions

Nan,

Jia,

et al. 2024

J. Micromech. Microeng.

View full text Add to dashboard Cite

show abstract

“…[1][2][3][4][5][6][7][8][9][10][11][12] In recent years, great attention has been paid to reconfigurable filters based on various circuit structures, owning to their ability to reduce complexity and strengthen expansibility in modern electronic systems. [13][14][15][16][17][18][19] Traditional reconfigurable filters, including semiconductor filters, [14] and MEMS filters, [15][16][17]19] have been extensively studied over the last two decades. However, these filters have shortcomings, such as large structural size, complex structure, high loss, and low integration.…”

Section: Introductionmentioning

confidence: 99%

A novel low-loss four-bit bandpass filter using RF MEMS switches

Han¹,

Wang²,

Wu³

et al. 2022

Chinese Phys. B

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This paper details the design and simulation of a novel low-loss four-bit reconfigurable bandpass filter that integrates microelectromechanical system (MEMS) switches and comb resonators. A T-shaped reconfigurable resonator is reconfigured in a ‘one resonator, multiple MEMS switches’ configuration and used to gate the load capacitances of comb resonators so that a multiple-frequency filtering function is realized within the 7–16 GHz frequency range. In addition, the insertion loss of the filter is less than 1.99 dB, the out-of-band rejection is more than 18.30 dB, and the group delay is less than 0.25 ns. On the other hand, the size of this novel filter is only 4.4 mm × 2.5 mm × 0.4 mm. Our results indicate that this MEMS reconfigurable filter, which can switch 16 central frequency bands through eight switches, achieves a low insertion loss compared to those of traditional MEMS filters. In addition, the advantages of small size are obtained while achieving high integration.

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“…With the increasing trend of multiband and reconfigurability in modern microwave communication systems, switchable filter banks have attracted more and more attention. Commonly, switchable filter banks are designed in planar technology employing PIN diodes, FETs, microelectromechanical systems (MEMS) switches, and varactors [1,2]. To meet the requirement of high performance in wideband applications, more filter channels are integrated into one switchable filter bank module, which increases the module complexity and the package size of systems.…”

Section: Introductionmentioning

confidence: 99%

3D Heterogenous Integrated Wideband Switchable Bandpass Filter Bank for Millimeter Wave Applications

Wang

Shu

et al. 2022

Electronics

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This article proposes a three-dimensional heterogenous-integrated (3DHI) switchable bandpass filter bank with two independent wideband filter channels that cover 26–40 GHz and 32.5–40 GHz, respectively. An accurate wafer-level process with a high hollowed ratio of the applied 8-inch high-resistivity-silicon (HR-Si) interposer wafers is presented to form both compact filter channels. Above the interdigital filter patterns fabricated on the bottom interposer wafer, deep cavities are etched in the cap interposer wafer to improve the quality factor of the filter bank. Besides the cavities, the cap interposer wafer is 35% hollow inside, which two bare dies of GaAs single-pole double-throw (SPDT) switches and two thin film resistors are attached to the bottom interposer after the wafer-to-wafer (W2W) bonding. To ensure good out-of-band performance, a 3D EM co-simulation of the switch layout at the chip level and filter patterns at the package level is applied. Measurement results show that the switchable filter bank achieves a high isolation of 50 dB and a competitive shape factor (BW30dB/BW3dB) of about 1.3. In addition, the size of the switchable filter bank is only 7.0 mm × 3.5 mm × 0.6 mm, and the weight is only 0.1 g.

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The Sky's the Limit: A Switchable RF-MEMS Filter Design for Wireless Avionics Intracommunication

Cited by 12 publications

References 1 publication

A review of research on RF MEMS for metaverse interactions

A review of research on RF MEMS for metaverse interactions

A novel low-loss four-bit bandpass filter using RF MEMS switches

3D Heterogenous Integrated Wideband Switchable Bandpass Filter Bank for Millimeter Wave Applications

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