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: 1.40

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 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 1.59
Cited half-life 2.50
Immediacy index 0.34
Eigenfactor 0.01
Article influence 0.38
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: 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.
    Journal of Electromagnetic Waves and Applications 12/2015; 29(2). DOI:10.1080/09205071.2014.997372
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    ABSTRACT: In this paper, reflective periodic arrays with rotating spiraphase-type elements based on loaded split rings are analyzed. It is proven that these arrays can be reconfigured over a wide frequency band with high reflection elevation angles, low conversion losses, and low axial ratios. A full-wave mathematical model has been developed to calculate their reflection characteristics. This model has been used to design a Ka-band reflectarray. The analysis of the designed reflectarray shows that an incident circularly polarized wave can be redirected at reflection elevation angles as high as 40° with conversion losses less than 1.8 dB and axial ratios less than 2 dB over the frequency band from 26.6 to 46.3 GHz. Additionally, the rotation of the reflectarray elements using minimotors is analyzed and discussed. In order to study the velocity properties of the electromechanical actuation, minimotor-driven antenna elements in the X-band have been designed, fabricated, and tested.
    Journal of Electromagnetic Waves and Applications 12/2015; 29(2). DOI:10.1080/09205071.2014.993770
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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.
    Journal of Electromagnetic Waves and Applications 12/2015; 29(2). DOI:10.1080/09205071.2014.981035
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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.
    Journal of Electromagnetic Waves and Applications 12/2015; 29(2):247-260. DOI:10.1080/09205071.2014.997837
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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.
    Journal of Electromagnetic Waves and Applications 12/2015; 29(2):210-217. DOI:10.1080/09205071.2014.993769
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    ABSTRACT: In this paper, a mixer is designed with low conversion loss through the entire W-band. A novel low pass filter is proposed and used to select the intermediate frequency signal with large rejection of the local oscillator (LO) and radio frequency (RF) signals. A single slot is added on the LO passage to achieve impedance matching in a narrow frequency band, while two slots and one metal strip are added on the RF passage to achieve impedance matching in a wide frequency band. The detailed design process is presented, where a more accurate full-wave simulation model of the adopted diode is suggested. Difference in performances can be obtained by changing the key sizes of the matching structures. One sample is fabricated, and the measured conversion loss is less than 9.5 dB through the entire W-band (from 75 to 110 GHz) under fixed LO condition. The measured return loss of RF port is between 5 and 13.5 dB.
    Journal of Electromagnetic Waves and Applications 12/2015; 29(2). DOI:10.1080/09205071.2014.1002632
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    ABSTRACT: A printed dual-band circularly polarized antenna is presented. The antenna is composed of a strip-monopole on one side of a substrate. On the other side of the substrate, there are a perturbed patch and a slotted-ground plane. Two sleeves are extended from two edges of the ground plane. It is investigated that the perturbed patch is mainly responsible for the circularly polarized wave centered at 5.5 GHz and the sleeves are mainly responsible for the circularly polarized wave centered at 2.5 GHz. The measured boresight gains are 4 dBic at 5.5 GHz and 2.5 dBic at 2.5 GHz. Keywords: dual band, circular polarization, monopole antenna
    Journal of Electromagnetic Waves and Applications 04/2015; DOI:10.1080/09205071.2015.1022265
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    ABSTRACT: Matrix methods to deal with multimodal propagation in electric multiwire transmission lines are quite well known. However, the matrix theory of magnetic multiwire transmission lines (MMTL) has been established only very recently. In this study, we advance the new subject of hybrid electric and MMTL, which has never been addressed in the literature. A complex system composed of N + 1 electric wires and n + 1 magnetic wires is theoretically analyzed from the viewpoint of their interaction/coupling, transmission line matrix equations, ABCD matrix formalism, and superposition of propagation modes.
    Journal of Electromagnetic Waves and Applications 04/2015; DOI:10.1080/09205071.2015.1026410
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    ABSTRACT: Studies on the voltage distribution on the top electrode are important to improve the radio frequency (RF) heating uniformity of samples. The goal of this study was to evaluate the top electrode voltage distribution uniformity in RF systems. The voltages of five representative points on the top electrode were measured by a measuring device with 3 kg soybeans, and validated by the heating patterns using 0.9 kg soybeans located at five positions of the RF cavity. The results showed that the length effect of the copper straps used for connecting the measuring points and measuring device should be taken into account by ignoring little effects of the strap shapes. The final voltages away from the feed strip were higher than those near the feed strip and the deviations between the minimum and the maximum values among the five voltages were 694.3 and 440.9 V, corresponding to the highest voltage difference of 11.99 and 7.12% without and with load, respectively. The real top electrode voltage distribution could be potentially used in computer simulations to achieve the accurate RF heating patterns.
    Journal of Electromagnetic Waves and Applications 03/2015; 29(6):1-11. DOI:10.1080/09205071.2015.1021018
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    ABSTRACT: One-, two- and three-dimensional arrays of magnetically coupled resonant loop circuits have been shown to support propagating waves and are known as Magneto-Inductive waveguides (MIW). Planar configurations of such circuits exhibit negative mutual inductance and support backward waves. Here, we consider a similar planar structure in which the individual resonators have coalesced forming a planar 1D ladder circuit which we call a CapGrid. These structures’ cells now couple by both magnetic and electric interactions and exhibit positive coupling and forward wave propagation. The bandwidth and group velocity available for signals is then greater than that possible for planar MIW with similar dimensions whilst offering similar characteristic impedances. A simple demonstration device has been fabricated and tested and found to match very well to a simple model based only on first-order interactions and circuit theory.
    Journal of Electromagnetic Waves and Applications 03/2015; 29(6):1-10. DOI:10.1080/09205071.2015.1020072
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    ABSTRACT: In this article, we present a study on the effects of negative permittivity and/or permeability on the transmission and reflection of electromagnetic waves from a variety of chiral-chiral interfaces. Specifically, three topological shapes - planar, circular cylindrical, and fractal - of the interface are considered with variety of parametric differences. For each case, the reflected and transmitted power of electromagnetic waves is determined and numerical results are given for various values, positive as well as negative, of permittivity and permeability. It has been noted that combinations of negative permittivity and/or permeability along with suitable values of chirality of two media give rise to diverse transmission/reflection characteristics, in case of planar interfaces, and change of focusing field intensity in case of circular cylindrical interface. Moreover, it is noted that the fractionality of dimensions provides yet another parameter to alter any given interface characteristics.
    Journal of Electromagnetic Waves and Applications 02/2015; DOI:10.1080/09205071.2015.1006375
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    ABSTRACT: A trend that is pragmatic in today’s wireless communications is the demand for the supportof increasing data rates over short distances. Through the last decade, ample knowledge about the 60 GHz millimeter wave (MmW) channel has been gathered and different architectures have been analyzed to develop MmW communication systems for commercial applications. The usage of MmW frequencies is perceived as a resilient entrant for realizing future, gigabit wireless communications as it offer vast bandwidths for short-range indoor communications. In this work, the MmW antenna solutions for exponentially tapered slot (ETS) antenna using substrate integrated waveguide (SIW) technology and indoor radio wave propagations are studied at 60 GHz for wireless communications. The SIW is used to feed the antenna, and a dielectric loading is utilized in front of the antenna to increase the gain. The antenna with elliptical-shaped dielectric loaded is fabricated using printed circuit board process. The measurement results are compared with simulated results. Then, the indoor short-range radio wave propagation study is carried out using ETS antenna with RF measurement equipment to measure and model propagation channels at 60 GHz. The attained simulations are compared to the experimental results.
    Journal of Electromagnetic Waves and Applications 02/2015; DOI:10.1080/09205071.2015.1011349
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    ABSTRACT: The efficient iterative method of moments and physical optics (EI-MoM-PO) hybrid formulation combined with the best uniform approximation is proposed to analyze the antenna array around the electrically large platform in this paper. In the conventional MoM-PO method, the computation of the mutual interaction matrix between the MoM and PO region is very time consuming. To facilitate the analysis of electrically large problems, the EI-MoM-PO method provides a possible way to avoid the calculation of the PO contribution in matrix form. On the other hand, the best uniform approximation is utilized to obtain the frequency response of antennas quickly and easy to be applied in EI-MoM-PO method. Finally, the frequency response of the bowtie antenna array around the electrically large platform is analyzed by the presented algorithm and the conventional one. Numerical results demonstrate the capability of the proposed technique.
    Journal of Electromagnetic Waves and Applications 02/2015; 29(5):1-9. DOI:10.1080/09205071.2015.1009176
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    ABSTRACT: A novel planar travelling-wave ring array with polarisation agility is introduced. The array is built by applying the sequential rotation technique with the complementary strip-slot element. This element is a conventional microstrip series-fed slot with the special feature of very broad impedance bandwidth thanks to the strip superimposed into it on the microstrip layer. The feeding of the array elements and the required phase shift between them are provided by a ring-shaped microstrip line, which is terminated in two ports. Vertical linear polarisation, horizontal linear polarisation, right-handed circular polarisation and left-handed circular polarisation can be generated with this very simple planar structure, just by controlling the phase and amplitude of the excitation at the two ports. Moreover, thanks to the wide impedance bandwidth of the element, multiband behaviour is achievable. A design example that operates at three different bands (centred around 6, 9 and 12 GHz) is analysed, which presents very good matching ( dB), polarisation purity and broadside radiation pattern.
    Journal of Electromagnetic Waves and Applications 02/2015; DOI:10.1080/09205071.2015.1006734
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    ABSTRACT: Two-dimensional (2D) Wunderlich-shaped fractal reactive impedance surface (WRIS) is designed and extensively investigated to reduce the dielectric substrate thickness without deteriorating the electromagnetic characteristic. Slot resonators, Hilbert-shaped complementary single ring resonator (HCSRR), and the complementary three-turns spiral resonator have been used to achieve antenna miniaturization and also to render the circularly polarized (CP) wave. For demonstration, WRIS-inspired HCSRR- and TCSR-loaded CP antennas are optimized, fabricated, and measured. Numerical and experimental results indicate that both antennas owe compact size smaller than 0.18λ0 × 0.25λ0 × 0.017λ0, exhibit comparable impedance, and axial ratio (AR) bandwidth better than 1.60% and pure CP performances. Furthermore, the antennas are free of metallic via holes and easy of fabrication, indicating promising applications in wireless communication systems.
    Journal of Electromagnetic Waves and Applications 02/2015; 29(3):1-14. DOI:10.1080/09205071.2015.1005177
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    ABSTRACT: This paper presents a novel design approach for tunable 3-pole bandpass filter (BPF) with constant bandwidth (ABW) and deep rejection at the desired stopband. First, by properly designing the coupling coefficient and Qext, the tunable 3-pole BPF is designed with the characteristic of constant ABW. Only two bias voltages are adopted to complete the tuning, among which one of them is used to tune the center frequency and the other one is adopted to control the Qext. Then, bandstop resonators are introduced to provide deep rejection at desired stopband. A deep rejection level >60 dB can be easily controlled by varying the loaded capacitor Cbs among the stopband. Furthermore, the designed deep rejection point can be constant and produces little influence on the passband. For demonstration, a 3-pole tunable BPF is designed, fabricated, and measured. The filter can be tuned from 0.98 to 1.4 GHz with constant ABW, a wide fractional tuning range up to 40% can be attained. High rejection level >60 dB is realized at the pre-designed stopband point 0.65 GHz. The measurement shows good agreement with the simulation.
    Journal of Electromagnetic Waves and Applications 02/2015; DOI:10.1080/09205071.2014.1002631
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    ABSTRACT: We consider the performance analysis of the natural frequency-based radar target detection. By making the Lagrange polynomial approximation of the standard normal distribution, the probability of detection for an augmented input vector can be recursively calculated. We present the bound of the error due to the Lagrange polynomial approximation, and it is illustrated that the actual error is within the derived error bound. We also present how to determine the optimal first-order Lagrange polynomial.
    Journal of Electromagnetic Waves and Applications 02/2015; 29(3):1-21. DOI:10.1080/09205071.2014.992551
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    ABSTRACT: A novel 3D folded two-ways microstrip lines (MLs) are proposed for realizing the super-miniaturization of electron devices. The 3D structure realized with two-ways folded MLs, which consists of several groups of cross-connected MLs and conductive vias, has the potential to have an advanced performance than the corresponding conventional, meandering and 3D one-way MLs. Longer MLs can be arranged in limited space. The superficial area of the 3D folded structure is significantly smaller than those proposed MLs in similar return loss. The methodology is validated with the design of single band, reduced size Wilkinson power divider (WPD), and branch-line hybrid coupler (BLHC) at 433 MHz. Reduction of the transmission line segments is from λ/4 to λ/32. The physical sizes have been reduced by 98.15 and 95.54%, compared with the conventional WPD and BLHC. This paper summarizes the longest 50 Ω MLs in a particular size and gets the conclusion that the structure could be used more effectively in the lower working frequency.
    Journal of Electromagnetic Waves and Applications 02/2015; 29(3). DOI:10.1080/09205071.2014.995835
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    ABSTRACT: We see and understand the Universe around us through the medium of the electromagnetic spectrum, ranging from the low-frequency radio waves extending up to the high-frequency γ-rays. These electromagnetic waves, generated by different processes within or nearby the various astronomical bodies get modified in their transit through the vast distances of spacetime and its contents that make up the Universe. Depending upon the various physical features of the media they are transiting through, characteristics such as dispersion, polarization and frequency modulation can occur by the intervening forces and fields. While electric and magnetic fields could be strong sources of influence, the weaker force gravity also can be a modifying factor both in the generation and propagation of the electromagnetic waves from distant cosmos. In fact, it is well known that the influence of gravity on light, making it bend while passing near Sun, was the predicted and observed experimental fact that confirmed Einstein’s theory of general relativity as the most successful theory of the twentieth century. It is well known that the passage of electromagnetic waves through plasma leads to several changes in the dispersed waves, a systematic study of which could give information about the characteristics of the medium through which they arrived. Over the past century, several detailed studies have been carried out to analyse the structure and properties of electromagnetic fields of cosmic objects and their behaviour in the presence of gravitational fields. We give a brief review of the subject, starting with the gravitational bending of light and its consequences, viz., gravitational lensing and then consider the influence of gravity on the electromagnetic fields close to compact objects and the behaviour of charged particles in such electromagnetic fields. The changes in their trajectories, that occur because of the curved geometry, can have direct influence on the electromagnetic and plasma processes near bodies like neutron stars and black holes. Further, introduction of a possible non-minimal coupling of electromagnetism and gravity seems to be a possible source for the generation of the cosmic primordial magnetic field, a precursor to the presently observed magnetic field in the Universe.
    Journal of Electromagnetic Waves and Applications 02/2015; 29(3). DOI:10.1080/09205071.2014.993043