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

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 sw...

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Bibliographic Details
Published inSensors (Basel, Switzerland) Vol. 24; no. 10; p. 3099
Main Authors Zhou, Weiwei, Sheng, Weixing, Yan, Binyun
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 13.05.2024
Subjects
Analysis
consistency
Design
Network topologies
Optimization
port configuration
Ports
Radio frequency
RF MEMS
switch matrix
Switches
topology
port configuration
RF MEMS
consistency
topology
switch matrix
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Summary: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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ISSN:1424-8220
1424-8220
DOI:10.3390/s24103099