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JournalISSN: 1937-8726

Progress in Electromagnetics Research M 

The Electromagnetics Academy
About: Progress in Electromagnetics Research M is an academic journal published by The Electromagnetics Academy. The journal publishes majorly in the area(s): Antenna (radio) & Computer science. It has an ISSN identifier of 1937-8726. It is also open access. Over the lifetime, 2028 publications have been published receiving 12381 citations. The journal is also known as: Pier M & Progress in electromagnetics research M.


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Journal ArticleDOI
TL;DR: In this paper, three methods of interpolation used: SPLINE, Inverse Distance Weighting (IDW), and KRIGING, were reviewed and a statistical assessment of the resultant continuous surfaces indicates that there is substantial difference between the estimating ability of the three interpolation methods and IDW performing better overall.
Abstract: Several georeferenced measurements of electric field were done in a pilot area of Caracas, Venezuela, to verify that the magnitude of radio frequency electromagnetic fields is below the human exposure limits, recommended by the International Commission on Non-Ionizing Radiation Protection. The collected data were analyzed using geographical information systems, with the objective of using interpolation techniques to estimate the average electromagnetic field magnitude, to obtain a continuous dataset that could be represented over a map of the entire pilot area. This paper reviews the three methods of interpolation used: SPLINE, Inverse Distance Weighting (IDW) and KRIGING. A statistical assessment of the resultant continuous surfaces indicates that there is substantial difference between the estimating ability of the three interpolation methods and IDW performing better overall.

142 citations

Journal ArticleDOI
TL;DR: In this paper, the design, simulation and fabrication of a left-handed metamaterial (LHM) structure was presented, where the combination of the modifled square rectangular Split Ring Resonator (SRR) and the Capacitance Loaded Strip (CLS) were used to obtain the negative value of permeability, " and the negative permittivity, ". Nicolson- Ross-Wier approach was used to identify the double negative region.
Abstract: The design, simulation and fabrication of a left-handed metamaterial (LHM) structure is presented. The combination of the modifled square rectangular Split Ring Resonator (SRR) and the Capacitance Loaded Strip (CLS) were used to obtain the negative value of permeability, " and the negative permittivity, ". Nicolson- Ross-Wier approach was used to identify the double negative region. A good agreement between simulated and measured results has been achieved. Upon incorporation with a single patch microstrip antenna, the performance of the antenna was improved where the gain of the microstrip antenna was increased up to 4dB, and its bandwidth widens from 2.9% to 4.98%. These improvements are due to the negative refraction characteristics of the LHM structure that acts as a lens when placed in front of the antenna.

130 citations

Journal ArticleDOI
TL;DR: An algorithm for wide-band microwave imaging for the detection of a hemorrhagic stroke is proposed, using a realistic head phantom and finite-difference time-domain program to estimate back-scattered signals.
Abstract: This paper proposes an algorithm for wide-band microwave imaging for the detection of a hemorrhagic stroke. A realistic head phantom and finite-difference time-domain program are used to estimate back-scattered signals which are subsequently used in the image reconstruction process. The proposed imaging approach can lead to a portable and cost effective system; particularly suitable for rural medical clinics that lack the necessary resources in effective stroke diagnosing.

102 citations

Journal ArticleDOI
TL;DR: In this paper, a novel infrared non-destructive testing method based on quadratic frequency modulated thermal wave imaging with pulse compression for characterization of glass flbre reinforced plastic materials was introduced.
Abstract: Thermal non-destructive testing and evaluation of glass flbre reinforced plastic materials has gained more importance in aerospace industry due to low weight and high strength capabilities in severe environmental conditions. More recently, pulse compression favorable non-stationary excitation schemes have been exhibiting reliable defect detection capabilities in infrared non-destructive testing. This paper introduces a novel infrared non-destructive testing method based on quadratic frequency modulated thermal wave imaging with pulse compression for characterization of glass flbre reinforced plastic materials. Defect detection capability of the proposed method has been experimentally validated using a glass flber reinforced plastic (GFRP) sample with embedded Te∞on inserts. Experimental results proved the enhanced depth resolution capability of the proposed excitation method as compared to the linear frequency modulation with pulse compression.

71 citations

Journal ArticleDOI
TL;DR: BBO algorithm is used to determine an optimum set of amplitudes of antenna elements that provide a radiation pattern with maximum side lobe level reduction and/or null placement in the specifled directions to show the efiectiveness of the BBO algorithm.
Abstract: This paper presents a novel optimization technique biogeography based optimization (BBO) for antenna array synthesis. BBO is a relatively new evolutionary global optimization technique based on the science of biogeography. It is capable of solving linear and non-linear problems. In this paper, BBO algorithm is used to determine an optimum set of amplitudes of antenna elements that provide a radiation pattern with maximum side lobe level reduction and/or null placement in the specifled directions. The results obtained show the efiectiveness of the BBO algorithm, and they are better than previous published results.

69 citations

Performance
Metrics
No. of papers from the Journal in previous years
YearPapers
202348
2022155
202186
2020205
2019181
2018218