sensors-logo

Journal Browser

Journal Browser

Challenges and Future Trends in Antenna Technology

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Electronic Sensors".

Deadline for manuscript submissions: 1 October 2025 | Viewed by 255

Special Issue Editor


E-Mail Website
Guest Editor
Department of Biomedical and Electronics Engineering, Faculty of Engineering and Informatics, University of Bradford, Bradford BD7 1DP, UK
Interests: antennas and propagation; microwave imaging; RF/microwave filters; linear and nonlinear circuits; MIMO/diversity antennas; 5G/6G antennas; RFID antennas; power amplifiers; phase shifters; power dividers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The upgrading of wireless systems from fourth-generation (4G) to fifth-generation (5G) technology has enabled new challenges for researchers at academic institutions and the engineers in industry by demanding a high level of innovation on RF front-end systems. As of recently, 5G is widely becoming the generation of wireless communications that will enable RF/microwave applications to expand into a completely new set of uses, cases, and vertical markets. The main structure of any front-end system includes antennas, filters, and power amplifiers (PAs)/low-noise amplifiers (LNAs). To meet the requirements for the latest transceiver generations, designers should carefully consider the new challenges and future trends in recent antenna technologies. Massive MIMO antenna systems and the use of high-frequency bands, such as mmWave and terahertz frequencies, have been investigated to a substantial degree as key technologies for future wireless applications. Using new physical materials, such as reconfigurable intelligent surfaces (RISs) and metamaterials, is another requirement for these applications. This not only brings challenges on the design level but also to the simulation, manufacturing, test, and measurement stages to obtain a sensible target for the prototypes.

This Special Issue invites academic researchers, industrial R&D, and engineers to contribute original research articles as well as review papers that seek to address the challenges and future trends in the design and application of new antenna technologies for 5G and beyond systems to support the large demands of this fast-evolving era.

Dr. Yasir Al-Yasir
Guest Editor

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. Sensors is an international peer-reviewed open access semimonthly 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 2600 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

  • antennas
  • mmWave
  • terahertz
  • massive MIMO
  • RIS
  • 5G
  • filter
  • power amplifiers

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

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

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

12 pages, 1606 KiB  
Article
Measurement Grid Optimization for OTA Testing of 5G Smart Watches
by Xudong An, Fei Liu, Meijun Qu and Siyang Sun
Sensors 2025, 25(10), 3185; https://doi.org/10.3390/s25103185 - 19 May 2025
Abstract
Over-the-air (OTA) testing is crucial for optimizing wireless performance of 5G smart watches and improving their user experience. However, the current required test time is so long that it is almost impossible to complete the entire OTA testing without recharging and repositioning, which [...] Read more.
Over-the-air (OTA) testing is crucial for optimizing wireless performance of 5G smart watches and improving their user experience. However, the current required test time is so long that it is almost impossible to complete the entire OTA testing without recharging and repositioning, which is unacceptable for the industry. Therefore, test-time reduction is significant. The objective of this work is to optimize measurement grids for OTA testing of 5G smart watches, which balance accuracy with efficiency. In this research, passive patterns from a typical 5G commercial smart watch are measured at different bands as reference patterns, which represent general radiation properties of 5G commercial smart watches. The effect of various coarse grids on OTA testing precision is characterized quantitatively by analyzing their accuracy in reconstructing reference patterns. The related measurement uncertainty (MU) terms are then evaluated and determined quantitatively based on statistical analysis. According to the derived MU limits for grid configurations, reducing grid points from currently required 62 (30/30) to 26 (45/45), and from 266 (15/15) to 62 (30/30) could save roughly 60% and 75% of the test time, respectively, with an uncertainty increase of 0.1 dB for both Total Isotropic Sensitivity (TIS) and Total Radiated Power (TRP) testing, which is considered acceptable. Furthermore, the feasibility of the proposed MU analysis and recommended grids have been experimentally verified. Full article
(This article belongs to the Special Issue Challenges and Future Trends in Antenna Technology)
Show Figures

Figure 1

Back to TopTop