Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
7.3
3.4
Journals
Sensors
Special Issues
Novel Antennas for Wireless Communication and Intelligent Sensing
sensors-logo
Submit to Special Issue Submit Abstract to Special Issue Review for Sensors Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Novel Antennas for Wireless Communication and Intelligent Sensing

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

Deadline for manuscript submissions: 31 December 2024 | Viewed by 4249

Special Issue Editors

Prof. Dr. Peng Li

E-Mail Website
Guest Editor
Key Laboratory of Electronic Equipment Structure Design, Xidian University, Xi’an 710071, China
Interests: conform antenna; reconfigurable antenna; Robust Design of array; radome and FSS
Dr. Paolo Rocca

E-Mail Website
Guest Editor
Associate Professor, Department of Civil, Environmental, and Mechanical Engineering, Trento University, 38123 Trento, Italy
Interests: antenna radiation patterns; antenna phased arrays; array signal processing; antenna arrays
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the increasing demand for wireless communication and intelligent sense in recent years, there has been a need to develop novel antennas that are flexible, reconfigurable, and can conform to various shapes and surfaces. These novel antennas can be used in a variety of applications, including wearable devices, IoT sensors, and medical devices.

This Special Issue aims to provide a comprehensive platform for researchers, engineers, and practitioners to share their insights, discoveries, and advancements in antenna design, wireless communication systems, and intelligent sensing technologies. It covers a broad range of topics related to antenna technologies, including, but not limited to, the following:

  • Advanced antenna designs for wireless communication systems, including 5G and beyond.
  • Miniaturized and low-profile antennas for compact and wearable devices.
  • Wideband and multiband antenna designs for enhanced communication capacity.
  • MIMO antenna systems for improved data rates and link reliability.
  • Smart and reconfigurable antennas for adaptive wireless communication.
  • Antennas for Internet of Things (IoT) applications and wireless sensor networks.
  • Millimeter-wave and terahertz antennas for high-speed wireless communication.
  • Antenna integration in intelligent sensing systems for applications such as radar, imaging, remote sensing and biomedicine.

Prof. Dr. Peng Li
Dr. Paolo Rocca
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. 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

  • flexible antenna
  • conform antenna
  • reconfigurable antenna
  • wireless communication
  • intelligent sensing

Published Papers (6 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

18 pages, 11695 KiB  
Article
A Compact Dual-Polarized Vivaldi Antenna with High Gain for Tree Radar Applications
by Kaixuan Cheng, Yee Hui Lee, Jiwei Qian, Daryl Lee, Mohamed Lokman Mohd Yusof and Abdulkadir C. Yucel
Sensors 2024, 24(13), 4170; https://doi.org/10.3390/s24134170 - 27 Jun 2024
Viewed by 191
Abstract
A dual-polarized compact Vivaldi antenna with high gain performance is proposed for tree radar applications. The proposed design introduces an array configuration consisting of two pairs of two Vivaldi elements to optimize the operating bandwidth and gain while providing dual-polarization capability. To enhance [...] Read more.
A dual-polarized compact Vivaldi antenna with high gain performance is proposed for tree radar applications. The proposed design introduces an array configuration consisting of two pairs of two Vivaldi elements to optimize the operating bandwidth and gain while providing dual-polarization capability. To enhance the gain of the proposed antenna over a certain frequency range of interest, directors and edge slots are incorporated into each Vivaldi element. To further enhance the overall antenna gain, a metal back reflector is used. The measurement results of the fabricated antenna show that the proposed antenna achieves a high gain of 5.5 to 14.8 dBi over broadband from 0.5 GHz to 3 GHz. Moreover, it achieves cross-polarization discrimination larger than 20 dB, ensuring high polarization purity. The fabricated antenna is used to detect and image the defects inside tree trunks. The results show that the proposed antenna yields a better-migrated image with a clear defect region compared to that obtained by a commercial Horn antenna. Full article
(This article belongs to the Special Issue Novel Antennas for Wireless Communication and Intelligent Sensing)
►▼ Show Figures

Figure 1

14 pages, 1854 KiB  
Article
A Radiation-Pattern Reconfigurable Antenna Array for Vehicular Communications
by Feng Gao and Hucheng Sun
Sensors 2024, 24(13), 4136; https://doi.org/10.3390/s24134136 - 26 Jun 2024
Viewed by 178
Abstract
This paper presents a low-profile reconfigurable antenna array capable of five radiation-pattern modes for vehicular communication applications. The antenna array consists of four antenna elements, each containing four square patches. Exciting one of the square patches generates a broadside radiation. A square parasitic [...] Read more.
This paper presents a low-profile reconfigurable antenna array capable of five radiation-pattern modes for vehicular communication applications. The antenna array consists of four antenna elements, each containing four square patches. Exciting one of the square patches generates a broadside radiation. A square parasitic patch is added at the rear of the excited patch, and two square parasitic patches are placed at the front. By optimizing the design of these parasitic patches, including the treatment of center slotting and addition of shorting pins, the antenna element achieves an end-fire beam with a certain tilt angle. On this basis, a reconfigurable feeding network is designed with 1:1 and 1:4 output modes. By connecting the reconfigurable feeding network to the four antenna elements and altering the on/off states of the PIN diodes in the feeding network, a reconfigurable antenna with four end-fire beams and one omnidirectional beam in its radiation pattern is realized. Measurement results demonstrate an excellent impedance bandwidth, radiation pattern, and gain performance in all modes. The four end-fire and one omnidirectional radiation characteristics make it highly suitable for vehicular communication applications. Full article
(This article belongs to the Special Issue Novel Antennas for Wireless Communication and Intelligent Sensing)
14 pages, 5687 KiB  
Communication
A Wide-Band Low-Profile Antenna for a High-Integration Phased Array System
by Haipeng Liu, Juan Liu, Jin Huang, Chunhui Han, Bo Chen, Yuhe Liu and Yujie Xiang
Sensors 2024, 24(11), 3295; https://doi.org/10.3390/s24113295 - 22 May 2024
Viewed by 367
Abstract
In this paper, a wide-band, low-profile antenna is presented for a high-integration phased array system. The proposed antenna, implemented using a tightly coupled array, operates over roughly the X-K frequency band and is performant at 8 GHz–18.5 GHz. The antenna can scan to [...] Read more.
In this paper, a wide-band, low-profile antenna is presented for a high-integration phased array system. The proposed antenna, implemented using a tightly coupled array, operates over roughly the X-K frequency band and is performant at 8 GHz–18.5 GHz. The antenna can scan to ±60 degrees in both the E- and H-planes. Compared to previous tightly coupled antennas with smaller element spacing, the antenna in this paper reaches 9.4 mm, which corresponds to 0.58 λ of high frequency, suitable for engineering application conditions in production. The antenna can be soldered to BGA T/R chips in this space. Additionally, to facilitate flexible assembly for large arrays, the antenna is manufactured modularly using four elements and its parasitic radiation is analyzed. Then, a method for repressing parasitic radiation is presented. Finally, the antenna is fabricated and measured in a microwave chamber, exhibiting an excellent pattern and scanning radiation. The measured performance agrees with the full-wave finite array simulations. Full article
(This article belongs to the Special Issue Novel Antennas for Wireless Communication and Intelligent Sensing)
►▼ Show Figures

Figure 1

11 pages, 1397 KiB  
Communication
Improving the Accuracy of Direction of Arrival Estimation with Multiple Signal Inputs Using Deep Learning
by Yihan Lu, Hengchao Guan, Kun Yang, Tong Peng, Chengyuan Wen and Xin Li
Sensors 2024, 24(10), 2971; https://doi.org/10.3390/s24102971 - 7 May 2024
Viewed by 585
Abstract
In this paper, an innovative cyclic noise reduction method and an improved CAPON algorithm (also the called minimum variance distortionless response (MVDR) algorithm) are proposed to improve the accuracy and reliability of DOA (direction of arrival) estimation. By processing the eigenvalues obtained from [...] Read more.
In this paper, an innovative cyclic noise reduction method and an improved CAPON algorithm (also the called minimum variance distortionless response (MVDR) algorithm) are proposed to improve the accuracy and reliability of DOA (direction of arrival) estimation. By processing the eigenvalues obtained from the covariance matrix of the received signal, the signal-to-noise ratio (SNR) can be increased by up to 5 dB by the cyclic noise reduction method, which will improve the DOA estimation accuracy. The improved CAPON algorithm has a convolution neural network (CNN) structure, whose input is the processed covariance matrix of the received signal, and the CAPON spectral value is used as the training label to obtain the estimated spatial spectrum. It retains the advantages of the CAPON algorithm, which can achieve blind source estimation, and simulations show that the proposed algorithm exhibits a better performance than the traditional algorithm in conditions of various SNRs and snapshot numbers. The simulation results show that, based on a certain SNR, the root mean square error (RMSE) of the improved CAPON algorithm can be reduced from 0.86° to 0.8° compared to traditional algorithms, and the angle estimation error can be decreased by up to about 0.3°. With the help of the cyclic noise reduction method, the angle estimation error decreases from 0.04° to 0.02°. Full article
(This article belongs to the Special Issue Novel Antennas for Wireless Communication and Intelligent Sensing)
►▼ Show Figures

Figure 1

30 pages, 7796 KiB  
Article
Configuration Investigation, Structure Design and Deployment Dynamics of Rigid-Reflector Spaceborne Antenna with Deviation-Angle Panel
by Guodong Tan, Kaiqi Liu, Xuechao Duan, Qunbiao Wang, Dan Zhang, Dongwu Yang and Dingchao Niu
Sensors 2024, 24(2), 385; https://doi.org/10.3390/s24020385 - 8 Jan 2024
Cited by 1 | Viewed by 1203
Abstract
Rigid-reflector spaceborne antennas (RRSAs) are well-suited for high-frequency application scenarios due to their high surface accuracy. However, the low stowing efficiency of RRSAs limits the aperture diameters and further deteriorates the electromagnetic (EM) performances in terms of gain, resolution and sensitivity. After conducting [...] Read more.
Rigid-reflector spaceborne antennas (RRSAs) are well-suited for high-frequency application scenarios due to their high surface accuracy. However, the low stowing efficiency of RRSAs limits the aperture diameters and further deteriorates the electromagnetic (EM) performances in terms of gain, resolution and sensitivity. After conducting systematic feature analysis with respect to several typical RRSAs, we propose a novel type of RRSA to solve the aforementioned problems. Inspired by the pose adjustment process for a higher stowing efficiency of traditional RRSAs, we also propose a new segmentation scheme of a reflective surface consisting of a deviation-angle panel that facilitates a higher stowing efficiency. Based on this scheme, its corresponding folded configuration is implemented by combining Euler’s rotation theorem and the idea of parameter identification. In addition, we also compare the stowing efficiency of different schemes to verify the high stowing efficiency of the configuration. Finally, we perform mechanism/structure design and deployment dynamics to demonstrate that the antenna can be successfully deployed and exhibits excellent deployment quality. The results suggest that the proposed antenna possesses higher stowing efficiency than that of the same kind, with a stable deployment and interference-free process. Full article
(This article belongs to the Special Issue Novel Antennas for Wireless Communication and Intelligent Sensing)
►▼ Show Figures

Graphical abstract

11 pages, 13532 KiB  
Communication
Dual-Polarized Metal Vivaldi Array Using Independent Structural Elements
by Bo Chen, Wei Wang, Juan Liu and Jianmin Ji
Sensors 2024, 24(2), 315; https://doi.org/10.3390/s24020315 - 5 Jan 2024
Viewed by 998
Abstract
In this letter, a dual-polarized metal Vivaldi phased array antenna composed of independent structural elements is proposed, covering 6–18 GHz. By designing Vivaldi elements with a flexible and complementary structure, arrays of arbitrary shapes and scales can be constructed. The resonance caused by [...] Read more.
In this letter, a dual-polarized metal Vivaldi phased array antenna composed of independent structural elements is proposed, covering 6–18 GHz. By designing Vivaldi elements with a flexible and complementary structure, arrays of arbitrary shapes and scales can be constructed. The resonance caused by structural discontinuity is critically studied and eliminated to ensure good performance across the entire band. The antenna elements are fed by 50-Ohm SSMP connectors and manufactured from 2A12 aluminum alloy. An array prototype consisting of 8 × 8 dual-polarized metal has been fabricated and tested with active transmit/receive (T/R) modules to demonstrate the design concept. The array exhibits excellent beam-scanning characteristics in both the E-plane and H-plane, within the scanning range without grating lobes, which shows good agreement with the simulated results. The measured gain results are within the range of 15.2 to 24.8 dBi, and the aperture efficiencies are greater than 91% in the entire operating band. The wideband antenna technology involved in this study can effectively help increase the capacity of communication systems and meets the intentions of the Special Issue. Full article
(This article belongs to the Special Issue Novel Antennas for Wireless Communication and Intelligent Sensing)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-6
Back to TopTop