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Micromachines
Special Issues
RF MEMS and Microsystems
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RF MEMS and Microsystems

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "E：Engineering and Technology".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1830

Special Issue Editors

Dr. Marco A. Panduro

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Guest Editor
Electronics and Telecommunications Department, CICESE Research Center, Carretera Ensenada-Tijuana No. 3918, Zona Playitas, Ensenada 22860, Mexico
Interests: phased antenna arrays; feeding networks; microsystems; RF devices
Special Issues, Collections and Topics in MDPI journals
Dr. David H. Covarrubias

E-Mail
Guest Editor
Electronics and Telecommunications Department, CICESE Research Center, Carretera Ensenada-Tijuana No. 3918, Zona Playitas, Ensenada 22860, Mexico
Interests: wireless communications; mobile systems; RF MEMS
Prof. Dr. Carlos Bocio

E-Mail Website
Guest Editor
Antennas Group, Public University of Navarra, campus Arrosadia, 31006 Pamplona, Spain
Interests: RF MEMS and microsystems; CORPS systems; phased antenna arrays
Special Issues, Collections and Topics in MDPI journals
Dr. Alberto Reyna Maldonado

E-Mail Website
Guest Editor
Electronics Department, Universidad Autónoma de Tamaulipas, UAMRR-R, Carretera Reynosa–San Fernando, Tamaulipas, Reynosa 88779, Mexico
Interests: computational electromagnetics; phased antenna arrays; RF MEMS
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue provides an international forum for the dissemination of new ideas and recent advances related to the application of RF MEMS and microsystems. The scope of this Special Issue includes, but is not limited to, the following topics:

  • Reconfigurable RF MEMS devices;
  • Antenna miniaturization and antenna array using RF MEMS-based designs;
  • Frequency-tunable and radiation pattern reconfigurable;
  • Steerable antenna systems;
  • Antenna array systems based on frequency-selective surfaces;
  • Microsystem technologies;
  • Switched beam antenna;
  • Multifunction antenna array systems;
  • Miniaturization of RF processing systems;
  • Microfabrication strategies for high-performance RF MEMS;
  • Phase shifters with small phase-shift values and broadband frequency coverage;
  • Wireless sensor networks and novel telemetry enabled by RF MEMS;
  • New applications in biomedical sensing, environmental monitoring, automotive sensing, and space exploration.

These advances could lead to significant progress in fields such as mobile communications, satellites, biomedicine, monitoring, automotives and space exploration. Therefore, this Special Issue seeks research papers that focus on novel technology and progress in RF MEMS and microsystems for antenna array applications.

Dr. Marco A. Panduro
Dr. David H. Covarrubias
Prof. Dr. Carlos Bocio
Dr. Alberto Reyna Maldonado
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2100 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • RF MEMS
  • microsystems
  • reconfigurable systems
  • antenna

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

21 pages, 9779 KiB  
Article
Enhancing Bandwidth and Efficiency with Slotted Ground Planes Embedding Antenna Boosters
by Sabrina Arús, Joan Navarro, Joan L. Pijoan, Aurora Andújar and Jaume Anguera
Micromachines 2025, 16(3), 250; https://doi.org/10.3390/mi16030250 - 23 Feb 2025
Viewed by 730
Abstract
The deployment of wireless devices has increased exponentially in recent years, not only for mobile applications but also for IoT. Typically, these IoT devices exchange data with other devices by means of wireless connections, where battery consumption depends on the antenna system’s efficiency. [...] Read more.
The deployment of wireless devices has increased exponentially in recent years, not only for mobile applications but also for IoT. Typically, these IoT devices exchange data with other devices by means of wireless connections, where battery consumption depends on the antenna system’s efficiency. In applications where long battery life and reliable transmission are essential, improving the efficiency of the antenna is crucial. This study aims to investigate how shaping the ground plane of a wireless device can enhance bandwidth and antenna efficiency, specifically in low-frequency bands of 824–960 MHz, a common frequency band used in IoT where transmitting a small amount of data provides long battery life. Specifically, this work shows that by adding a slot in the ground plane, the current distribution is enlarged, which enables the excitation of its fundamental mode and, consequently, enhances the bandwidth and antenna efficiency by 2 dB. This approach is assessed using three different printed circuit boards (PCBs) that aim to characterise different form factors of IoT devices. A physical prototype is built to validate the results obtained in simulations. Full article
(This article belongs to the Special Issue RF MEMS and Microsystems)
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14 pages, 6132 KiB  
Article
Design of Two Compact Wideband Monopoles Through Loading with Linear Approximated Lumped Components
by Jiansen Ma, Weiping Cao and Xinhua Yu
Micromachines 2024, 15(12), 1477; https://doi.org/10.3390/mi15121477 - 7 Dec 2024
Viewed by 874
Abstract
In this paper, two ultra-wideband monopoles in a colinear structure are presented for application in remote terrestrial communication systems. The antennas consist of a loaded monopole with a hat and an elevated loaded monopole located in the upper position. All lumped loads are [...] Read more.
In this paper, two ultra-wideband monopoles in a colinear structure are presented for application in remote terrestrial communication systems. The antennas consist of a loaded monopole with a hat and an elevated loaded monopole located in the upper position. All lumped loads are modeled as linear frequency-dependent components to approximate the practical component property for achieving ultra-wideband characteristics, since the constant value property of a component is only present in a relatively narrow band. The antennas are simulated by the method of moments (MoM) with asymptotic waveform evaluation (AWE) to speed up frequency sweep across a wide bandwidth. For proper simulation with the AWE process, the parallel RLC load with linear frequency-dependent components is modeled in a corresponding impedance function. With the optimized load parameters, one antenna covers 30–750 MHz with a VSWR < 3.5 and the other one covers 800 MHz–3000 MHz with a VSWR < 2.5, which are promising results for terrestrial omnidirectional applications. Full article
(This article belongs to the Special Issue RF MEMS and Microsystems)
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