Journal of Electromagnetic Waves and Applications (J ELECTROMAGNET WAVE)

Publisher: Taylor & Francis

Journal description

This journal covers all aspects of electromagnetic wave theory and its various applications. The journal publishes original papers and review articles on new theories, methodology and computational techniques, and interpretations of both theoretical and experimental results. The aim is to report advancement and progress in the modern development of electromagnetic wave theory and to report new and exciting applications. The journal's scope is broad and includes the following topics: Wave propagation theory, Remote sensing, Inverse scattering, Geophysical subsurface probing, inversion techniques, Propagation in random media, Oceanography-radar reflection, Meteorology, Ionospheric effects on wave propagation, Ionospheric modifications and heating, Atmospherics, Antenna theory and applications, Transients, Radar measurements and applications, Active experiments using space vehicles, Extra-terrestrial remote sensing, Electromagnetic interferometry, Ground-based remote sensing, Agricultural remote sensing, Microelectronic, integrated circuits, EM wave transmission in VLSI, Electromagnetic pulse transmission and coupling, Electromagnetic compatibility, Optical and millimeter wave techniques, Integrated optics, Fiber optics, Communication systems, Solid state devices and circuits, Medical applications, biological effects, Ferrite devices, Field and network theory, High power devices and systems, Submicron structures, Waves in composite and amorphous materials, Expert systems in remote sensing, Numerical methods.

Current impact factor: 0.73

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2014 / 2015 Impact Factor 0.726
2013 Impact Factor 1.395
2011 Impact Factor 2.965
2010 Impact Factor 1.376
2009 Impact Factor 1.551
2008 Impact Factor 3.134
2007 Impact Factor 1.844
2006 Impact Factor 0.524
2005 Impact Factor 0.285
2004 Impact Factor 0.284
2003 Impact Factor 0.311
2002 Impact Factor 0.238
2001 Impact Factor 0.298
2000 Impact Factor 0.285
1999 Impact Factor 0.407
1998 Impact Factor 0.237
1997 Impact Factor 0.451
1996 Impact Factor 0.591
1995 Impact Factor 0.3
1994 Impact Factor 0.514
1993 Impact Factor 0.523
1992 Impact Factor 0.235

Impact factor over time

Impact factor
Year

Additional details

5-year impact 0.66
Cited half-life 5.00
Immediacy index 0.18
Eigenfactor 0.00
Article influence 0.21
Website Journal of Electromagnetic Waves and Applications website
Other titles Journal of electromagnetic waves and applications (Online)
ISSN 0920-5071
OCLC 51038926
Material type Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Taylor & Francis

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Some individual journals may have policies prohibiting pre-print archiving
    • On author's personal website or departmental website immediately
    • On institutional repository or subject-based repository after either 12 months embargo
    • Publisher's version/PDF cannot be used
    • On a non-profit server
    • Published source must be acknowledged
    • Must link to publisher version
    • Set statements to accompany deposits (see policy)
    • The publisher will deposit in on behalf of authors to a designated institutional repository including PubMed Central, where a deposit agreement exists with the repository
    • STM: Science, Technology and Medicine
    • Publisher last contacted on 25/03/2014
    • This policy is an exception to the default policies of 'Taylor & Francis'
  • Classification
    green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: In this work, a novel metamaterial absorber (MMA) with perfect wave absorption is designed through the layout optimization. The rotationally symmetrical design domain is determined by considering polarization insensitivity. The symmetrical design variables are related with each other. The optimization objective is to maximize the absorption index which is described by the reflection and transmission coefficients in the frequency range of 8–12 GHz with the constraint of volume fraction. The maximum absorptivity of the optimized MMA reaches 99.89%. And it has the polarization insensitivity, the wide range of oblique incident angles and the ideal impedance matching with the free space. Furthermore, the absorption frequencies exhibit regular variations while changing the sizes of unit cell and the thickness of dielectric substrate. Inspired by these analysis results and the existing researches, the multilayer MMA is designed in order to broaden the absorption band efficiently. The absorption frequency band reaches 1.1 GHz while the absorptivity is more than 85%.
    No preview · Article · Feb 2016 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: The suppression of undesired signals impinging on a planar antenna array from unknown directions is addressed by adaptively connecting and disconnecting subarrays of elements from the beamforming network. The subarrays, periodically arranged on the array aperture, are equipped with radio-frequency switches that are controlled to maximize the ratio between the power of the desired signal, whose direction of arrival is supposed to be known, and the total power received by the antenna. A set of numerical results concerning different subarray layouts and interfering configurations is reported and discussed to show the effectiveness of the nulling method and the behavior of the considered array architectures.
    No preview · Article · Feb 2016 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: In this paper, a rigorous method in order to analyze the electromagnetic scattering by a multilayered sphere of an inhomogeneous elliptically polarized plane wave, is presented. One has to do with inhomogeneous plane waves when the scatterer is immersed in a medium generally dispersive and dissipative. The expression of the vectorial spherical harmonics expansion of an inhomogeneous elliptically polarized plane wave has been derived using the Legendre functions generalized via hypergeometric and gamma functions. The problem of the stratified sphere has been solved using the transfer-matrix approach, applied to each spherical surface, obtaining the coefficients of the scattered field and the internal field to the sphere system. In order to validate the presented method, a Matlab code and a numerical model based on the finite element method has been implemented. The comparison between the two methods is shown.
    No preview · Article · Feb 2016 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: The nondestructive characterization of in situ conductor-backed media is an important task for many commercial and military applications. These and similar applications may require completely nondestructive and noncontact free space material characterization methods. Free space methods which fit these characteristics are at premium. One such of these methods is the dual polarization method. The dual polarization method utilizes the measurement of the reflection coefficient at both parallel and perpendicular polarization to determine the permittivity and permeability of an unknown material sample. This paper presents an overview of the dual polarization method to characterize conductor-backed media and two additional implementations of the method specific only to dielectric materials. These additional implementations include the characterization of conductor-backed dielectrics with either known or unknown sample thickness. All three implementations of the dual polarization method presented are demonstrated with measured reflection data from a conductor-backed Plexiglas sample and are shown with accompanying sensitivity analysis.
    No preview · Article · Jan 2016 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: This paper proposes the phase adjustment signaling based on packet structure for the Wi-Fi backscatter system. The Wi-Fi backscatter system has very low data rate due to the transmission method by unit of packet. In addition, because the Wi-Fi backscatter system uses simple energy detection method for identification of request information from the reader, the system has very low reliability. In order to solve these problems, the signaling that adjusts transmission power in according to transmitting information is proposed. For improvement of data rate of the system, the proposed signaling uses the transmission method by unit of OFDM symbol in Wi-Fi packet. Also, for improvement of reliability of the system, the proposed signaling uses the iterative transmission method in Wi-Fi packet. The simulations show that the proposed signaling improves performance of the Wi-Fi backscatter system. Also, because the proposed signaling can easily achieve diverse data rate or reliability in according to the parameters, it is useful to meet the demands of IoT application for specific data rate or reliability.
    No preview · Article · Jan 2016 · Journal of Electromagnetic Waves and Applications

  • No preview · Article · Jan 2016 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: This paper aims to analyse the design techniques of differential transmission lines loaded with metamaterials. Specifically, complementary split-ring resonators were etched on the ground plane of a microstrip transmission line in order to mitigate both differential- and common-mode propagation in differential signalling. Several prototypes were manufactured and characterised in printed circuit boards. The topologies under test were measured and compared as radiofrequency interference filters, taking into account frequency response, signal integrity, and near- and far-field radiation impact with regard to a reference (solid ground) board.
    No preview · Article · Dec 2015 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: This paper considers fractal-based antenna array optimization using differential evolution algorithm (DEA). The proposed optimization technique of planar fractal array is based on Sierpinski carpet fractal array concept. Generally, fractal arrays like Sierpinski carpet may suffer from increased peak side lobe level (PSLL), as well as complex array factor computation that isolates it from the application of any evolutionary optimization techniques. Based on Sierpinski carpet array, a novel iterative feed matrix is proposed, whose inclusion eases the computation complexity of Sierpinski fractal array at different stages of growth and make them suitable for the application of any evolutionary optimization techniques. Thus, a novel method to compute Sierpinski carpet array factor has been proposed and DEA has been applied for element reduction as well as PSLL minimization of original Sierpinski carpet-patterned array at different stages of growth. The optimized version of Sierpinski carpet array produces lower PSLL with reduced radiating elements than its original counterpart.
    No preview · Article · Dec 2015 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: A novel microstrip left-handed resonator (LHR) is proposed in this paper by embedding narrow central symmetric spiral lines in the rectangular gap of the main microstrip line. According to the EM simulated results, the proposed LHR has two narrow notched bands, which is produced by the magnetic resonance and sudden change of the effective permeability and effective permittivity; the phase characteristics of the proposed LHR show that there are two frequency points with −90-degree phase shift and one frequency point with +90-degree phase shift in the passbands. According to the electromagnetic characteristics of the proposed LHR, we use it to replace the 70.7 Ω transmission line of conventional Wilkinson power divider, and a compact triple-band 3-dB power divider is presented. After fabrication, the presented triple-band power divider is measured by using Anritsu ME7808A vector network analyzer, the measured and simulated results are in good agreement with each other, showing that, the fabricated power divider operating at 2.20, 3.40, and 7.50 GHz with bandwidths of 84.5, 35.8, and 15.2%; in the passbands, the return loss is better than 15 dB, the insertion loss is between 3.4 ± 0.2 dB, and the isolation between port 2 and 3 is better than 20 dB. Moreover, the out-of-band rejection among three operating bands is also very good, which benefits from the two narrow notched bands. Simultaneously, the effective area of the fabricated power divider is 0.121 λg by 0.116 λg (where λg is the guided wavelength at 2.20 GHz), about 55.2% relative to that of conventional one operating at 2.20 GHz. Besides, the presented power divider is uniplanar, and there is no defected ground structure or lumped element.
    No preview · Article · Dec 2015 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: This paper presents a low-profile ultra wideband slot spiral antenna backed by a hybrid impedance surface. A unique aspect of the spiral is its hybrid impedance surface cavity leading to reduced axial ratio over a wide bandwidth. This is an improvement over conventional cavity-backed wideband spirals. Measurements demonstrated that the slot spiral on the proposed hybrid impedance surface achieved a 10:1 bandwidth from 0.6 to 6 GHz with an axial ratio of λ 600 MHz at its lowest operational frequency. As such, this slot spiral is attractive in enabling low-profile ultra wideband antenna with excellent RF performance for conformal and wearable applications.
    No preview · Article · Dec 2015 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: We present the fractional wave equation in a conducting material. We used a Maxwell’s equations with the assumptions that the charge density (Formula presented.) and current density J were zero, and that the permeability (Formula presented.) and permittivity (Formula presented.) were constants. The fractional wave equation will be examined separately; with fractional spatial derivative and fractional temporal derivative, finally, consider a Dirichlet conditions, the Fourier method was used to find the full solution of the fractional equation in analytic way. Two auxiliary parameters (Formula presented.) and (Formula presented.) are introduced; these parameters characterize consistently the existence of the fractional space-time derivatives into the fractional wave equation. A physical relation between these parameters is reported. The fractional derivative of Caputo type is considered and the corresponding solutions are given in terms of the Mittag-Leffler function show fractal space-time geometry different from the classical integer-order model.
    No preview · Article · Dec 2015 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: This study proposes a compact implementation of substrate integrated waveguide (SIW) transversal filter with mixed source and load coupling. One dual-mode microstrip resonator, etched on the top metal layer of SIW cavity, is utilized to achieve transversal topology. Therefore, four transmission zeros can be obtained by introducing mixed sourced and load coupling, which is realized by inter-digital slot structure. A third-order SIW transversal filter sample is fabricated using printed circuit board technology, and its measured S-parameters have good agreements with the simulated ones.
    No preview · Article · Dec 2015 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: In this paper, the electrical characterization of two different fabric structures elaborated with conductive yarns and several pick densities are investigated in order to evaluate their electrical properties as conductive media of digital electrical signals. The real and imaginary impedance and the signal integrity have been measured for each e-textile. The results show that the impedance depends on the fabric structures and pick density. The eye diagram measurements experimentally demonstrate the functionality of these fabrics to transmit digital electric signals to communicate sensors with microcontrollers in wearable applications.
    No preview · Article · Dec 2015 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: In this article, low-profile and compact cylindrical dielectric resonator antenna along with circular slots and filtering structure for wireless application is reported. Proposed antenna is excited by annular-shaped microstrip line. Two ring-shaped resonators placed on opposite sides of feed line are working as a band-pass filter. These resonators are unified with wideband cylindrical dielectric resonator antenna and make it suitable for triple band operations with better isolation level. Dual ring-shaped parasitic slots on a partial ground plane are used to make CDRA more compact. The proposed triple band antenna has been analyzed, studied and optimized using Ansoft HFSS simulation software. Prototype of proposed geometry has been fabricated and tested. There is a better accord between simulated and measured results. The proposed design engenders three frequency bands i.e. 2.35–2.55 GHz; 3.35–3.65 GHz; and 5.1–5.42 GHz with a resonant frequency of 2.45, 3.55, and 5.35 GHz, respectively. Proposed antenna design may find suitable applications for WLAN (2.4/5.2 GHz) and WiMAX (3.5 GHz) bands. The proposed design shows an average measured gain of 4.71 dB in the three desired bands.
    No preview · Article · Dec 2015 · Journal of Electromagnetic Waves and Applications
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    ABSTRACT: A quad-element multiple-input–multiple-output (MIMO) antenna for compact long term evolution (LTE) base stations is proposed. While most of the literature on LTE base station antennas concerns only the upper frequency bands (1710−2690 MHz), this work not only focuses on the wideband performance enhancement of LTE700/850/900 (698−960 MHz), but it also employs four-unit antenna elements, which are the maximum number to date for compact base stations aiming at LTE700/850/900. A pentagonal conductor wall is established on the ground plane; accordingly, not only does isolation improve, but the electromagnetic interference (EMI) between the antenna and other electronic components is reduced. Although the design space exhibits a highly truncated ground plane, we design a top-loading meandered monopole with dual sleeves attached to each side of the radiating body, optimizing the characteristics of impedance bandwidth and radiation efficiency concurrently. The experimental results show that the impedance characteristics, radiation performances, and signal correlation are highly desired for femtocell base stations.
    No preview · Article · Dec 2015 · Journal of Electromagnetic Waves and Applications