Multi-Band/Broadband Antenna Design, Optimization and Measurement

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: 30 June 2024 | Viewed by 578

Special Issue Editor


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Guest Editor
Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
Interests: electromagnetic field analysis and antenna design; design of waveguide slot array; scattering from grooved/slotted conducting wedges; broadband and circularly polarized antennas
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Special Issue Information

Dear Colleagues,

With the rapid development of infinite communication technology, people’s requirements are increasingly higher for communication and radar systems, and traditional antenna design cannot meet the needs. Therefore, the design and performance optimization of multi-band/broadband antennas has become a hot topic.

Broadband antenna is an antenna capable of transmitting signals over a wider range of frequency bands. The main feature points are its frequency band width, that is, it can achieve a large degree of signal transmission. Compared with narrowband antenna, wideband antenna can not only improve the width of transmission but also improve the quality and stability of signal and improve the efficiency of communication. A multiband antenna is a device designed to transmit and receive frequencies via several bands or frequency channels which are selected electronically.

This Special Issue will explore the involvement, optimization, and measurement of multiband/wideband antennas, including, but not limited to, the following topics:

  • Broadband antenna;
  • Antenna design and optimization;
  • Antenna measurement;
  • multiband antenna;
  • Mobile multi-band antennas;
  • Antenna arrays;
  • Wireless communication;
  • Electromagnetics;
  • Broadband and circularly polarized antennas.

Prof. Dr. Keum Cheol Hwang
Guest Editor

Manuscript Submission Information

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Keywords

  • broadband antenna
  • antenna design and optimization
  • antenna measurement
  • multiband antenna

Published Papers (1 paper)

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Research

17 pages, 2072 KiB  
Article
Design of Series-Fed Circularly Polarized Beam-Tilted Antenna for Microwave Power Transmission in UAV Application
by Mok Yoon Park, Jun Hee Kim, Sang-hwa Yi, Wonseob Lim, Youngoo Yang and Keum Cheol Hwang
Appl. Sci. 2024, 14(8), 3490; https://doi.org/10.3390/app14083490 - 20 Apr 2024
Viewed by 415
Abstract
In response to the increasing deployment of unmanned aerial vehicles (UAVs) across various sectors, the demand for efficient microwave power transmission (MPT) systems for UAVs has become paramount. This study introduces series-fed circularly polarized (CP) and passively beam-tilted patch array antennas designed to [...] Read more.
In response to the increasing deployment of unmanned aerial vehicles (UAVs) across various sectors, the demand for efficient microwave power transmission (MPT) systems for UAVs has become paramount. This study introduces series-fed circularly polarized (CP) and passively beam-tilted patch array antennas designed to enhance MPT in UAV applications, with the intention of addressing the needs related to extending flight times and improving operational efficiency. The radiating element of the proposed antennas employs the conventional model of the patch with truncated corners for CP operation, with transmission line lengths optimized for beam tilt to ensure precise energy transfer. Additionally, an open stub is integrated into the broadside series-fed antenna to improve impedance matching, which is crucial for maintaining signal integrity. The proposed design achieves right-hand circular polarization (RHCP) with an axial ratio (AR) below 3 dB across the operating band, indicative of its effectiveness in diverse UAV operational contexts. Prototypes of each proposed antenna were fabricated and measured according to the beam tilting angle. The measured RHCP realized gains of the proposed antennas are 14.59, 13.09, 13.07, and 10.71 dBic at the tilted angles of 0°, 15°, 30°, and 45°, respectively, at 5.84 GHz. Full article
(This article belongs to the Special Issue Multi-Band/Broadband Antenna Design, Optimization and Measurement)
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