Advanced Electromagnetics, is electronic peer-reviewed open access journal that publishes original research articles as well as review articles in all areas of electromagnetic science and engineering. The aim of the journal is to become a premier open access source of high quality research that spans the entire broad field of electromagnetics from classic to quantum electrodynamics.

Advanced Electromagnetics is an electronic peer-reviewed open access journal that publishes original research articles as well as review articles in all areas of electromagnetic science and engineering. The journal aims to become a premier open access source of high-quality research that spans the entire broad field of electromagnetics, from classical electromagnetics to quantum electrodynamics.

《Advanced Electromagnetics》是一本电子同行评审的开放获取期刊，致力于发表电磁科学与工程领域的原创研究文章和综述文章。该期刊的目标是成为高质量研究的首要开放获取来源，涵盖从经典电磁学到量子电动力学的广泛领域。

Advanced Electromagnetics

This work describes a miniaturized power divider (PD) using the combination of two symmetrical parallel coupled lines (PCL) and a defective microstrip structure (DMS). The proposed PD is intended for 2.4 GHz wireless local area network (WLAN) applications. DMS structures are used to improve PD performance while also decreasing its size. Initially, to reduce the circuit size, quarter-wavelength lines were replaced with PCL’s. It is observed that the size of PD is 0.42λgX0.53λg, representing a 25.3% decrease. Furthermore, four DMS structures are integrated into the design to reduce the overall size by 43% as compared with conventional Wilkinson PD at 2.4 GHz. The final size of PD is 0.35λgX0.47λg. Required equations are provided for the optimization of the DMS structure. The proposed PD has a return loss, isolation performance, and power division of around 16 dB, -15 dB, and -3.3 dB, respectively. The designed PD is fabricated on the substrate of Rogers RT/duroid 5880 with εr=2.2.

B. P. Eppe

A. Ghosh

P. Mondal

Size Reduction of Wilkinson Power Divider using a Combination of Parallel Coupled Lines and Defective Microstrip Structures

使用平行耦合线和缺陷微带结构减小Wilkinson功分器尺寸

In this paper, the authors have presented extensive work done involving the design, simulation, development, and performance measurement of a novel Glass Fiber Reinforced Polymer (GFRP) composite-based metasurface patch antenna. The authors have first designed GFRP composite-based metasurface patch antenna and simulated the design to measure its performance. Then the same antenna has been indigenously developed following the design specifications. Using the developed antenna, measurements have been recorded and performance has been analysed. Moreover, considering the significance of benchmarking, the authors have also compared the performance of the design and developed GFRP composite-based metasurface patch antenna results against the performance of Linear C-band patch antenna and a GFRP-based metasurface patch antenna. The results obtained through simulation and testing show characteristic similarity thus validating the approach adopted for the printing of copper on GFRP composite. The results also show that using GFRP composite as a metasurface on top of simple microstrip patch antenna results in an overall 39% gain enhancement compared to simple microstrip patch antenna gain.

A. K. M. S. Ali

I. Ahmed

S. Ali

M. Khalid

Gain Enhancement of Patch Antenna using Novel Glass Fiber Reinforced Polymer (GFRP) based Metasurface

基于新型玻璃纤维增强聚合物（GFRP）超表面的贴片天线增益增强

In a context of high-density deployment of UHF RFID patch-type tag antennas, mutual coupling can have an impact on the detection rate due to the degradation of the link budget between certain tags and the reader. The aim of this paper is to analyze the performance of a system that takes account of electromagnetic mutual coupling as a function of the random positions of UHF RFID patch-type tag antennas in complex environments. The design of the patch-types tags, including the extraction of the Y admittance parameters, was studied using the HFSS electromagnetic simulation software. To validate the study approach, the results obtained were compared using MATLAB software. The results obtained provide additional information needed to gain an in-depth understanding of UHF RFID patch-type tag antenna systems to make them reliable and practical in a dense environment. Future research and development work may be inspired in the design of UHF RFID patch-types tag antennas for miniaturized applications.

K. F. Gbamélé

Performance analysis of patch-type UHF-RFID tag antennas in the presence of mutual coupling

补丁型UHF-RFID标签天线在互耦存在情况下的性能分析

An analytical model of metasurfaces made of a rectangular array deposited on a low thickness (10-150 µm) grounded dielectric layer is presented. The surface impedance and the equivalent circuit are extracted from full wave simulations. Contrary to previous works on higher thickness metasurfaces, the absorption corresponds to the first resonance under the patch. The equivalent circuit is made of a parallel resonant RLC circuit in series with an inductance Ls. The analytical expressions of the RLC components and of the quality factors are established from the study of the influence of the different parameters. The inductance Ls is attributed to the non-metallized part of the mesh. The impedance of the resonant circuit expresses as the product of a proportionality factor, the impedance of a single patch and a periodicity factor. The model is validated on different examples. Specific properties are evidenced like the quasi-independence of the equivalent circuit resistance versus the length of the patch, the total absorption condition and the extension of the model to a two patches metasurfaces. Giving a better understanding of the role of the different parameters, the model is useful in view of new applications development notably electrically driven tunable metasurfaces.

C. Legrand

P. Ropa

Analytical Circuit-based Model for Low Thickness Tunable Metasurfaces Design

基于电路分析的低厚度可调超表面设计模型

The Industrial Internet of Things (IIoT) is a domain between IoT and Industry 4.0 that brings an evolution in automation and data exchange. Multiband and the wideband antenna are an important part to support high-rate IoT/IIoT communication through the wireless systems. In this study, we optimized a Vivaldi antenna for triple-band operation at well-known IIoT bands without adding any slot or extra structure. The antenna gets a large bandwidth of over 8%, 12%, and 19% at 2.4GHz, 4GHz, and 5.6GHz resonant frequencies, respectively. To improve several antenna characteristics such as resistance matching, gain, and radiation efficiency, an L shape symmetric Substrate Integrated Waveguide (SIW) structure is proposed. At the 5.6 GHz band, the SIW antenna achieves over 25% increase in radiation efficiency that reaches 99% although FR4 substrate is chosen to design the antenna. The proposed Vivaldi antenna is analyzed using CST simulation and measured using VNA equipment with an agree well result. Besides, we also set up a reality wireless system to test the antenna at two important IIoT bands: 2.4GHz and 5GHz.

T. D. Nguyen

T. T. T. Duong

D. D. Pham

The Performance Enhancement of Triple-band Vivaldi Antenna using SIW Structure for IIoT applications

用于IIoT应用的SIW结构增强三频带Vivaldi天线性能

This paper presents a compact bandstop filter (BSF) with a wide passband range (0.1 GHz – 3.7 GHz) and low insertion loss in microstrip technology. The design includes two modified inverted complementary split ring resonators (CSRRs) etched from the bottom plane and L-shaped defected structures along with two stepped impedance stubs placed symmetrically in the top plane. The stop rejected filter has a center frequency of 5.35 GHz which attenuates the signal in the C-band with a fractional bandwidth of 44 %. The designed filter has a circuit size of 0.08 lamda g square with a maximum insertion loss of 0.3 dB. The lumped equivalent circuit of the presented filter has been derived and the proposed fabricated BSF structure has also been validated finally with experimental results. This filter is applicable for ISM band (5250 MHz – 5350 MHz) and Wi-Max (2300 MHz – 2500 MHz) applications.

Abbreviation	AEM
Journal Impact	0.93
Quartiles(Global)	ENGINEERING, ELECTRICAL & ELECTRONIC(Q4)

ISSN	2119-0275
h-index	20

Publication Information	Publisher: Advance Electromagnetics，Publishing cycle: ，Journal Type: journal，Open Access Journals: Yes
Basic data	Year of publication: 2012，Proportion of original research papers: 100.00%，Self Citation Rate:12.50%， Gold OA Rate: 1.18%
Average review cycle	网友分享经验：10 Weeks

Advanced Electromagnetics

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Size Reduction of Wilkinson Power Divider using a Combination of Parallel Coupled Lines and Defective Microstrip Structures

Gain Enhancement of Patch Antenna using Novel Glass Fiber Reinforced Polymer (GFRP) based Metasurface

Performance analysis of patch-type UHF-RFID tag antennas in the presence of mutual coupling

Analytical Circuit-based Model for Low Thickness Tunable Metasurfaces Design

The Performance Enhancement of Triple-band Vivaldi Antenna using SIW Structure for IIoT applications

Performance analysis of patch-type UHF-RFID tag antennas in the presence of mutual coupling

Analytical Circuit-based Model for Low Thickness Tunable Metasurfaces Design

Gain Enhancement of Patch Antenna using Novel Glass Fiber Reinforced Polymer (GFRP) based Metasurface

Size Reduction of Wilkinson Power Divider using a Combination of Parallel Coupled Lines and Defective Microstrip Structures

Modified Inverted CSRR and Stepped Impedance Stub based Bandstop Filter with wide passband