SR‐Crossbar topology for large‐scale RF MEMS switch matrices

Zhou, Wen; Sheng, Wexing; Cui, Jie; Han, Yubing; Ma, Xiaofeng; Zhang, Renli

doi:10.1049/iet-map.2018.5317

Cited by 11 publications

(7 citation statements)

References 15 publications

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“…The SR-Crossbar structure proposed in paper [14] improves the overall reliability and performance of RF switch matrices by reducing the number of switch units in a crossbar matrix. This article builds upon this foundation to further research optimizing the input and output port configurations to enhance dynamic consistency.…”

Section: Modelling and Analysismentioning

confidence: 99%

“…The same cantilever RF MEMS switch unit as that proposed in article [14], which introduced the SR-Crossbar topology, was adopted in the simulation. The length of the switch cantilever beam is 115 µm, the width is 15 µm, and the height is 2.5 µm, with an air gap of 1.5 µm between the contact points.…”

Section: Verificationsmentioning

confidence: 99%

“…Combining the advantages of the aforementioned switch matrix topologies, paper [14] designed the SR-Crossbar topology. This topology significantly reduces the number of switch units used in the switch matrix, thereby enhancing the overall reliability and RF performance of the switch matrix.…”

mentioning

confidence: 99%

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Study on SR-Crossbar RF MEMS Switch Matrix Port Configuration Scheme with Optimized Consistency

Zhou,

Sheng,

Yan

2024

Sensors

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The performance consistency of an RF MEMS switch matrix is a crucial metric that directly impacts its operational lifespan. An improved crossbar-based RF MEMS switch matrix topology, SR-Crossbar, was investigated in this article. An optimized port configuration scheme was proposed for the RF MEMS switch matrix. Both the utilization probability of individual switch nodes and the path lengths in the switch matrix achieve their best consistency simultaneously under the proposed port configuration scheme. One significant advantage of this scheme lies in that it only adjusts the positions of the input and output ports, with the topology and individual switch nodes kept unchanged. This grants it a high level of generality and feasibility and also introduces an additional degree of freedom for optimizations. In this article, a universal utilization probability function of single nodes was constructed and an optimization objective function for the SR-Crossbar RF MEMS switch matrix was formulated, which provide a convenient approach to directly solving the optimized port configuration scheme for practical applications. Simulations to demonstrate the optimized dynamic and static consistencies were conducted. For an 8 × 8 SR-Crossbar switch matrix, the standard deviations of contact resistances of 128 units and losses of all 64 paths decreased from 1.00 and 0.42 to 0.51 and 0.23, respectively. These results aligned closely with theoretical calculations derived from the proposed model.

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Section: Modelling and Analysismentioning

confidence: 99%

Section: Verificationsmentioning

confidence: 99%

See 1 more Smart Citation

Study on SR-Crossbar RF MEMS Switch Matrix Port Configuration Scheme with Optimized Consistency

Zhou,

Sheng,

Yan

2024

Sensors

Self Cite

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show abstract

“…Combining the advantages of the aforementioned switch matrix topologies, the paper [13] designed the SR-Crossbar topology. This topology significantly reduces the number of switch units used in the switch matrix, thereby enhancing the overall reliability and RF performance of the switch matrix.…”

Section: Introductionmentioning

confidence: 99%

Study on SR-Crossbar RF MEMS Switch Matrix Port Configuration Scheme with Optimized Consistency

Zhou,

Sheng,

Yan

2024

Preprint

View full text Add to dashboard Cite

The performance consistency of an RF MEMS switch matrix is a crucial metric, which directly impacts its operational lifespan. An improved crossbar-based RF MEMS switch matrix topology, the SR-Crossbar, was investigated in this article. An optimized port configuration scheme was proposed for the RF MEMS switch matrix. Both the utilization probability of individual switch nodes and path lengths in the switch matrix achieve best consistency simultaneously under the proposed port configuration scheme. One significant advantage of this scheme lies in that it only adjusts positions of input and output ports, with topology and individual switch nodes kept unchanged. This grants it a high level of generality and feasibility, and also introduces an additional degree of freedom for optimizations. The article also constructed a universal utilization probability function of single nodes, and formulated an optimization objective function for the SR-Crossbar RF MEMS switch matrix, which provides a convenient approach to directly solving the optimized port configuration scheme for practical applications.

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“…Despite the obvious advantages of using microelectromechanical systems, a fully reliable and long-lifetime solution has not yet been certified for the space environment. On the other hand, a few examples [4][5][6][7][8] used in signal routing have also been studied in the past years [9][10][11] and, more recently, also for the small satellites domain [12][13][14]. For this reason, the RF MEMS solution is still appealing to substitute semiconductor conventional switches or even bulky waveguide switches with planar, miniaturized, and fully passive devices.…”

Section: Introductionmentioning

confidence: 99%

MEMS-Switched Triangular and U-Shaped Band-Stop Resonators for K-Band Operation

Marcelli,

Sardi,

Proietti

et al. 2023

Sensors

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Triangular resonators re-shaped into Sierpinski geometry and U-shaped resonators were designed, linking them with single-pole-double-through (SPDT) RF MEMS switches to provide frequency tuning for potential applications in the K-Band. Prototypes of band-stop narrowband filters working around 20 GHz and 26 GHz, interesting for RADAR and satellite communications, were studied in a coplanar waveguide (CPW) configuration, and the tuning was obtained by switching between two paths of the devices loaded with different resonators. As a result, dual-band operation or fine-tuning could be obtained depending on the choice of the resonator, acting as a building block. The studied filters belong to the more general group of devices inspired by a metamaterial design.

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SR‐Crossbar topology for large‐scale RF MEMS switch matrices

Cited by 11 publications

References 15 publications

Study on SR-Crossbar RF MEMS Switch Matrix Port Configuration Scheme with Optimized Consistency

Study on SR-Crossbar RF MEMS Switch Matrix Port Configuration Scheme with Optimized Consistency

Study on SR-Crossbar RF MEMS Switch Matrix Port Configuration Scheme with Optimized Consistency

MEMS-Switched Triangular and U-Shaped Band-Stop Resonators for K-Band Operation

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