Antenna: Design Methodology, Optimization, and Technologies

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: 29 February 2024 | Viewed by 4019

Special Issue Editor

School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China
Interests: antenna analysis and design; metamaterial and metasurface; ground penetrating radar; microwave technology; electromagnetic field; wavefront manipulation

Special Issue Information

Dear Colleagues,

As one of the key technologies of wireless systems, the antenna has a wide range of applications, including radar, communication, Internet of Things, sensing, etc. However, different wireless systems have different requirements for antenna design and evaluation. In recent years, the requirements for antenna design, array synthesis and performance analysis are becoming higher and higher. A new generation of antennas with better performance and more comprehensive functions is urgently needed. Antennas based on novel materials and manufacturing processes, rapid modelling and simulations, computer aided optimization and other technologies are developing vigorously. This Special Issue of Applied Sciences aims to provide a platform for the recent progress in advanced antenna technologies. Topics of interest include, but are not limited to, the following:

  • Recent advances in antenna analysis and design;
  • Optimization design of antenna;
  • Novel materials and metamaterial structures for antennas;
  • mm-wave and THz technologies and metamaterials;
  • Antenna measurements;
  • Antennas for various applications.

Dr. Linyan Guo
Guest Editor

Manuscript Submission Information

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Keywords

  • antennas for portable devices
  • novel materials and metamaterial structures for antennas
  • broadband antennas
  • conformal antennas
  • metalens antenna
  • antenna array
  • MIMO antennas
  • millimeter-wave and terahertz antennas
  • optical antennas
  • on-chip antennas
  • liquid antennas
  • reflectarrays
  • implanted and encapsulated antennas
  • intelligent materials and antennas
  • antennas and their applications
  • antennas for near-field systems
  • modeling and simulations
  • synthesis method
  • antenna optimization method
  • antenna measurements

Published Papers (4 papers)

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Research

14 pages, 3605 KiB  
Article
Design and Kinematic Analysis of Deployable Antenna for Bionic Bird Tail Feather
Appl. Sci. 2023, 13(23), 12598; https://doi.org/10.3390/app132312598 - 22 Nov 2023
Viewed by 481
Abstract
The application field of space deployable antennas covers mobile communication, navigation, deep space exploration, etc. The traditional space deployable antenna mechanism deploys in a fixed way and mostly in a circular direction in order to expand the space deployable antenna configuration; this paper [...] Read more.
The application field of space deployable antennas covers mobile communication, navigation, deep space exploration, etc. The traditional space deployable antenna mechanism deploys in a fixed way and mostly in a circular direction in order to expand the space deployable antenna configuration; this paper summarizes the bionic principle that can be used for antenna structure design by studying the tail feather deploying behavior of birds such as peacocks and proposes a new parabolic antenna configuration that imitates the tail feather deploying of birds. The kinematic model of the deployable mechanism is established, and kinematic analysis of the deployable process is carried out on the key rods. The simulation of the rod motion is carried out using ADAMS 2020 software, and the angle change results obtained from the simulation are compared with MATLAB 2020b to verify the correctness of the kinematic equations. The deployment trajectories of the innermost and outermost rib endpoints are analyzed, and the spatial arrangement of the antenna is determined to be in the range of 4 m × 3.5 m. This is a solid foundation for the development of spatially deployable antennas. Full article
(This article belongs to the Special Issue Antenna: Design Methodology, Optimization, and Technologies)
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15 pages, 6703 KiB  
Article
Analysis of Grating Lobe Effects on GEO DSC Distributed Antennas
Appl. Sci. 2023, 13(19), 10912; https://doi.org/10.3390/app131910912 - 01 Oct 2023
Viewed by 827
Abstract
Traditional single-antenna systems have inherent limitations in terms of antenna gain, anti-interference capability, and flexibility. To overcome these challenges, satellite-mounted distributed antenna systems disperse multiple antennas at different positions on the satellite to improve the reception quality and signal-to-noise ratio of satellite signals, [...] Read more.
Traditional single-antenna systems have inherent limitations in terms of antenna gain, anti-interference capability, and flexibility. To overcome these challenges, satellite-mounted distributed antenna systems disperse multiple antennas at different positions on the satellite to improve the reception quality and signal-to-noise ratio of satellite signals, enhancing the performance of the satellite communication system without additional bandwidth or transmission power. However, the dispersed locations and long distances between antennas on the satellite result in less compact spacing compared to terrestrial distributed antennas, leading to the generation of a significant number of grating lobes. The distributed satellite cluster (DSC) approach revolutionizes the traditional mode of satellite utilization, enabling close collaboration among distributed loads. In this study, we analyzed the impact of grating lobes produced by DSC distributed antennas in geostationary Earth orbit (GEO) and simulated the grating lobe patterns of two 1 m circular aperture satellite antenna arrays in GEO. The simulation results revealed that the relative position change of the satellites affected the width and number of interference fringes in a certain ground area, while change in the carrier phase led to the translation of the interference fringes. To mitigate the grating lobes, we employed a sparse array technique. The simulation results demonstrated that the sparse array effectively suppressed the grating lobes but at the expense of a decrease in the sidelobe level and beamwidth. Full article
(This article belongs to the Special Issue Antenna: Design Methodology, Optimization, and Technologies)
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21 pages, 4523 KiB  
Article
Spiral-Resonator-Based Frequency Reconfigurable Antenna Design for Sub-6 GHz Applications
Appl. Sci. 2023, 13(15), 8719; https://doi.org/10.3390/app13158719 - 28 Jul 2023
Cited by 5 | Viewed by 1060
Abstract
This paper presents a novel frequency reconfigurable antenna design for sub-6 GHz applications, featuring a unique combination of antenna elements and control mechanisms. The antenna is composed of an outer split-ring resonator loaded with an inner spiral resonator, which can be adjusted through [...] Read more.
This paper presents a novel frequency reconfigurable antenna design for sub-6 GHz applications, featuring a unique combination of antenna elements and control mechanisms. The antenna is composed of an outer split-ring resonator loaded with an inner spiral resonator, which can be adjusted through the remote control of PIN diode or Single Pole Double Throw (SPDT) switches. The compact antenna, measuring 22 × 16 × 1.6 mm3, operates in broadband, or tri-band mode depending on the ON/OFF states of switches. The frequency reconfigurability is achieved using two BAR64−02V PIN diodes or two CG2415M6 SPDT switches acting as RF switches. SPDT switches are controlled remotely via Arduino unit. Additionally, the antenna demonstrates an omni-directional radiation pattern, making it suitable for wireless communication systems. Experimental results on an FR-4 substrate validate the numerical calculations, confirming the antenna’s performance and superiority over existing alternatives in terms of compactness, wide operating frequency range, and cost-effectiveness. The proposed design holds significant potential for applications in Wi-Fi (IEEE 802.11 a/n/ac), Bluetooth (5 GHz), ISM (5 GHz), 3G (UMTS), 4G (LTE), wireless backhaul (4G and 5G networks), WLAN (IEEE 802.11 a/n/ac/ax), 5G NR n1 band, and Wi-Fi access points due to its small size and easy control mechanism. The antenna can be integrated into various devices, including access points, gateways, smartphones, and IoT kits. This novel frequency reconfigurable antenna design presents a valuable contribution to the field, paving the way for further advancements in wireless communication systems. Full article
(This article belongs to the Special Issue Antenna: Design Methodology, Optimization, and Technologies)
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10 pages, 3966 KiB  
Communication
Low-Cost Broadband Circularly Polarized Array Antenna with Artificial Magnetic Conductor for Indoor Applications
Appl. Sci. 2023, 13(5), 3104; https://doi.org/10.3390/app13053104 - 28 Feb 2023
Cited by 2 | Viewed by 1033
Abstract
In this paper, we report a sequential-phase fed broadband circularly polarized array antenna loaded with an artificial magnetic conductor-reflecting surface. Our proposed antenna is a two-part group. The upper structure is a sequential-phase fed circular wide-slot antenna. The lower part is an artificial [...] Read more.
In this paper, we report a sequential-phase fed broadband circularly polarized array antenna loaded with an artificial magnetic conductor-reflecting surface. Our proposed antenna is a two-part group. The upper structure is a sequential-phase fed circular wide-slot antenna. The lower part is an artificial magnetic conductor structured reflective surface. The overall antenna size is 106 × 106 × 14.9 mm3, both adopting 1.6 mm thick FR4 material. The thickness of the air layer sandwiched between the antenna and the artificial magnetic conductor reflective surface is 14 mm. The antenna consists of four circular wide-slot antenna units with a sequential rotation technique. To broaden the axial ratio bandwidth, three L-shaped branches and four metal plates are attached to the circular wide-slot antenna unit and around the artificial magnetic conductor-reflecting surface, respectively. To verify the accuracy of the simulation, we fabricated the sample and then tested it in an anechoic chamber. The measured results demonstrate that the proposed broadband circularly polarized array antenna realizes an impedance bandwidth of 77.67% (2.74–6.22 GHz) and an axial ratio bandwidth of 65.16% (3.00–5.90 GHz) with a peak gain of 11.1 dBi. The design can be used in space-constrained environments, such as indoor and dense building areas. Full article
(This article belongs to the Special Issue Antenna: Design Methodology, Optimization, and Technologies)
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