Low-voltage U-shaped RF MEMS shunt switch integration for K-band phased array beam steering.

Y Anusha, Koushik Guha, Kavicharan Mummaneni, Jagadeesh Thati

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 authors.

Y AnushaDepartment of Electronics and Communication Engineering, National Institute of Technology, Silchar, Silchar, Assam, India. anusha.yellapu2010@gmail.com.

Koushik Guha *Department of Electronics and Communication Engineering, National Institute of Technology, Silchar, Silchar, Assam, India.

Kavicharan Mummaneni *Department of Electronics and Communication Engineering, National Institute of Technology, Silchar, Silchar, Assam, India.

Jagadeesh Thati *Department of Electronics and Communication Engineering, National Institute of Technology, Silchar, Silchar, Assam, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This work presents the design and system-level integration of a low-voltage U-shaped meander RF MEMS shunt switch with a K-band phased array antenna for agile and efficient beam steering. The proposed switch achieves a pull-in voltage of 5.3 V, a return loss better than - 30 dB, and an insertion loss as 0.45 dB, ensuring minimal signal degradation across 18-27 GHz. By incorporating the switch into a distributed MEMS transmission line (DMTL) phase shifter network, discrete and reconfigurable phase states are realized, enabling dynamic control of the progressive phase shift between array elements. A four-element series-fed patch array integrated with the MEMS phase shifter demonstrates a steering range of ± 30 °C with low side-lobe levels and high radiation efficiency, confirming its suitability for high-frequency front-end modules. The results confirm that the proposed MEMS-integrated phased array achieves industry-leading low actuation voltage with minimal RF loss, positioning it as a strong candidate for 6G and satellite front-end modules.

Indexed as

Beam steeringDistributed MEMS transmission line (DMTL)K-bandLow-voltage actuationPhased array antennaRF MEMSShunt switchU-shaped meander beam

Identifiers

PMID41771898

DOI10.1038/s41598-026-36980-7

PMCPMC13057222

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LicenceCC BY-NC-ND

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.