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Electronics
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Advanced Technologies in Antennas and Their Applications
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Advanced Technologies in Antennas and Their Applications

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microwave and Wireless Communications".

Deadline for manuscript submissions: closed (30 September 2024) | Viewed by 8775

Special Issue Editors

Dr. Nengwu Liu

E-Mail Website
Guest Editor
National Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi’an 710071, China
Interests: multimode theory; phased array antenna; and RF transceiver system
Dr. Zhongxun Liu

E-Mail Website
Guest Editor
The National Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi’an 710071, China
Interests: phased array antenna; multimode antenna; circularly polarized antenna
Special Issues, Collections and Topics in MDPI journals
Dr. Gang Zhang

E-Mail Website
Guest Editor
Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing, School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210023, China
Interests: filter; power divider; coupler; balun; multifunctional passive device; packaging; 3D printed
Dr. Zhe Chen

E-Mail Website
Guest Editor
State Key Laboratory of Radio Frequency Heterogeneous Integration, Shenzhen University, Shenzhen 518060, China
Interests: antenna-in-package; reconfigurable antenna; dielectric resonator antenna; lens antenna; antenna for B5G/6G mobile terminals; metamaterial/metasurface/smart material
Dr. Gengqi Zheng

E-Mail Website
Guest Editor
School of Electronics Engineering, Xi’an University of Post & Telecommunications, Xi’an 710199, China
Interests: navigation terminal antenna; piezoelectric antenna; rectenna and RF circuit design

Special Issue Information

Dear Colleagues,

This Special Issue mainly focuses on advanced antenna technologies and their wide range of  applications, aiming to illustrate the working principle of these antennas and investigate the latest advanced technologies for the realization of high performance, i.e., wide bandwidth, low profile, high gain, wide beamwidth, 3D printing, and so on. Topics of interest include, but are not limited to:  5G and B5G antennas for terminal as well as base stations; filtering antennas; 3D printing antennas; array/MIMO antennas; artistic and hidden antennas; decoupling for multi-port antennas; meta-material/ metasurface; phased array antennas; and RFID Base Station Antennas and Systems.

Dr. Nengwu Liu
Dr. Zhongxun Liu
Dr. Gang Zhang
Dr. Zhe Chen
Dr. Gengqi Zheng
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. Electronics 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 2400 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

  • high-performance antennas
  • 5G/B5G
  • advanced technologies

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Published Papers (5 papers)

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Research

10 pages, 12955 KiB  
Communication
An In-Band Low-Radar Cross Section Microstrip Patch Antenna Based on a Phase Control Metasurface
by Fang Li, Miao Lv, Min Wang and Yongtao Jia
Electronics 2024, 13(9), 1718; https://doi.org/10.3390/electronics13091718 - 29 Apr 2024
Viewed by 899
Abstract
An in-band low radar cross section (RCS) microstrip patch antenna based on a phase control metasurface is proposed. As the size of the phase control metasurface changes, it will have different phase adjustments to the incident electromagnetic wave. Two kinds of phase control [...] Read more.
An in-band low radar cross section (RCS) microstrip patch antenna based on a phase control metasurface is proposed. As the size of the phase control metasurface changes, it will have different phase adjustments to the incident electromagnetic wave. Two kinds of phase control metasurfaces with a 90° reflection phase difference are arranged in a checkerboard configuration and loaded above a microstrip array antenna. The metal of the microstrip array antenna can fully reflect the electromagnetic wave, so the incident wave passes through the metasurface again and forms a reflected wave with a phase difference of 180° ± 37° when passing through the phase control metasurfaces of different sizes. Thus, the microstrip array antenna can achieve in-band RCS reduction. The metamaterial forms a transmission window in the microstrip patch array antenna band to maintain the radiation performance. Finally, a reasonable agreement is obtained between the measured and simulated results. Full article
(This article belongs to the Special Issue Advanced Technologies in Antennas and Their Applications)
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17 pages, 4364 KiB  
Article
Broadband Beam-Scanning Phased Array Based on Microwave Photonics
by Yuchen Luan, Tian Yang, Jian Ren, Ruoming Li and Zhuo Zhang
Electronics 2024, 13(7), 1278; https://doi.org/10.3390/electronics13071278 - 29 Mar 2024
Viewed by 1250
Abstract
A one-dimensional active broadband phased array based on microwave photonics that works in the Ku band is proposed to achieve a large instantaneous bandwidth. The phased array uses a feeding network based on microwave photonics to provide the true time delay and a [...] Read more.
A one-dimensional active broadband phased array based on microwave photonics that works in the Ku band is proposed to achieve a large instantaneous bandwidth. The phased array uses a feeding network based on microwave photonics to provide the true time delay and a wide operating bandwidth. The array is mainly composed of a broadband horn antenna, an RF transmitting/receiving module, an optical network module, and a temperature control module. The form of a horn was selected for the antenna unit, and it was fed through a waveguide to obtain a wide operating bandwidth. An optical fiber delay line that could realize the true time delay at different frequencies was adopted for the time-delay module of the optical network. To obtain a large time delay and small quantization error, a hybrid time-delay diagram utilizing electrical and optical time delays was used in the design. In addition, a temperature control module was added to the antenna system to enhance the stability of the photonic time-delay module. For verification, a prototype of the presented antenna system was designed, fabricated, and measured. The experimental results showed that the optical phased array antenna was able to scan ±20° from 12 GHz to 17 GHz, and the beam pointing did not appear to be offset over the wide operating bandwidth. Full article
(This article belongs to the Special Issue Advanced Technologies in Antennas and Their Applications)
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19 pages, 6306 KiB  
Article
Portable Intelligent Electromagnetic Flowmeter Controlled by Magnetic Induction Intensity
by Binbin Cheng, Minbo Tong, Qilong Yan, Bochuan Jin, Nengwu Liu and Jiarui Lu
Electronics 2024, 13(3), 556; https://doi.org/10.3390/electronics13030556 - 30 Jan 2024
Viewed by 1427
Abstract
In this paper, we propose a portable intrinsically safe, intelligent electromagnetic flowmeter for the application of coal mines and provide a detailed description of its working principle. In terms of hardware circuit design, several important modules, including electromagnetic flow rate sensor, excitation circuit, [...] Read more.
In this paper, we propose a portable intrinsically safe, intelligent electromagnetic flowmeter for the application of coal mines and provide a detailed description of its working principle. In terms of hardware circuit design, several important modules, including electromagnetic flow rate sensor, excitation circuit, core control circuit, signal conditioning circuit, and air traffic control detection circuit, were analyzed and designed in sequence. It adopts a high-performance, low-power MCU STM32407ZET6 and high-precision chips, ensuring measurement accuracy and reducing power consumption. The excitation method using low-frequency rectangular waves dynamically adjusts the sampling interval time, further prolonging the battery life. Finally, the performance of the electromagnetic flowmeter was measured, and the experimental data showed that the measured flow rate was basically linear with the output voltage. The relative indication error of the electromagnetic flowmeter was within 0.3%, and the repeatability fluctuated within the range of 0.03%. The flowmeter has good measurement accuracy, which is suitable for long-term use in coal mining environments. Full article
(This article belongs to the Special Issue Advanced Technologies in Antennas and Their Applications)
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20 pages, 22707 KiB  
Article
A Novel Bow-Tie Balun-Fed Dual-Polarized Crossed Dipole Antenna
by Weiwei Wu, Naichang Yuan, Xueyi Hu, Yixuan Xu and Tongtong Shi
Electronics 2023, 12(14), 3032; https://doi.org/10.3390/electronics12143032 - 11 Jul 2023
Viewed by 2771
Abstract
A broadband dual-polarized crossed dipole antenna is proposed in this paper. To achieve a wide impedance bandwidth and low-profile configuration, a novel bow-tie balun is applied to this antenna. Firstly, the working mechanisms of both bow-tie baluns and the antenna are introduced. Then, [...] Read more.
A broadband dual-polarized crossed dipole antenna is proposed in this paper. To achieve a wide impedance bandwidth and low-profile configuration, a novel bow-tie balun is applied to this antenna. Firstly, the working mechanisms of both bow-tie baluns and the antenna are introduced. Then, the parametric study and design guidelines are presented. Finally, the optimized antenna is fabricated, measured, and analyzed. The simulated and measured results show that the antenna has a wide impedance bandwidth from 2.42 GHz to 6.48 GHz. The fractional bandwidth is 91.2%. Moreover, within the whole band, the E-plane and H-plane radiation patterns are stable. The port isolation is greater than 20 dB, and the cross-polarization discrimination ratio is better than 25 dB. The proposed antenna achieves a realized gain of 7.5 dBi ± 0.5 dBi. It can be a good candidate for sub-6 GHz wireless communications or short-range radar applications. Full article
(This article belongs to the Special Issue Advanced Technologies in Antennas and Their Applications)
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19 pages, 11048 KiB  
Article
An Ultrathin Low-Profile Tightly Coupled Dipole Array Fed by Compact Zigzagging Baluns
by Weiwei Wu, Yuchen Yan, Shaozhi Wang, Yuhong Ma and Naichang Yuan
Electronics 2023, 12(12), 2752; https://doi.org/10.3390/electronics12122752 - 20 Jun 2023
Cited by 1 | Viewed by 1509
Abstract
In this paper, we propose for the first time a novel feed approach to a tightly coupled dipole array (TCDA). Firstly, compact zigzagging microstrip feedlines are utilized as baluns to feed our array elements to obtain wideband impedance-matching characteristics. Secondly, this array is [...] Read more.
In this paper, we propose for the first time a novel feed approach to a tightly coupled dipole array (TCDA). Firstly, compact zigzagging microstrip feedlines are utilized as baluns to feed our array elements to obtain wideband impedance-matching characteristics. Secondly, this array is designed on ultrathin substrates aiming at obtaining ultra-tight coupling between the dipole arms of two neighboring elements. Some irreplaceable parasitic pads are developed and added to the radiating arms to improve both the impedance and radiation characteristics of the TCDA. With these technologies, a 12 × 12 TCDA prototype is designed, fabricated and measured for verification. The array achieves an impressive impedance bandwidth spanning of 4–18 GHz for S11<−10 dB. Its radiation patterns and realized gain are measured to verify its stable electromagnetic characteristics. Its realized gain is from 15 dB to 25 dB within the operating frequency band. Its efficiency is around 91%. Its measured results show good agreement with simulations. Full article
(This article belongs to the Special Issue Advanced Technologies in Antennas and Their Applications)
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