Advanced Electromagnetics https://www.aemjournal.org/index.php/AEM <div class="hometabscontainer"> <div style="float: left;"> <table> <tbody> <tr> <td valign="top" align="left"> <p><a href="/images/aem_cover_new.png"><img class="img-responsive" style="border: 0px;" src="/images/aem_cover_mini_new.png" alt="" width="150"></a></p> <p style="text-align: center;"><strong style="text-align: center;">ISSN: 2119-0275</strong></p> </td> </tr> </tbody> </table> </div> <div><strong><br>Advanced Electromagnetics</strong>&nbsp; is a peer-reviewed open access journal that publishes original research articles as well as review articles in all areas of electromagnetics. <p>Additionally, through its unique <em>from-Conference-to-Journal-Publication </em>concept, <strong>Advanced Electromagnetics</strong>&nbsp;offers a rare opportunity for authors to submit papers to one of its partner conferences and then be considered for journal publication. With its multi-layered review process, <strong>Advanced Electromagnetics</strong>&nbsp;helps authors prepare, improve, and timely publish their research papers.</p> <p>Publication in this journal <strong>is totally free</strong>. There are no article submission charges, no article processing charges and no publication fees.</p> <p>&nbsp;</p> </div> <p><img class="img-responsive" src="/images/indexing.jpg" alt=""></p> <h3><span style="color: #336699;">Scopus rating (2017) for Advanced Electromagnetics</span></h3> <p><img class="img-responsive" src="/images/aem-scopus.png" alt="" width="100%"></p> </div> en-US <p>Authors who publish with this journal agree to the following terms:</p><ol><li style="text-align: justify;">Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a target="_blank">Creative Commons Attribution License</a> that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li><li style="text-align: justify;">Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li><li style="text-align: justify;">Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See <a target="_blank">The Effect of Open Access</a>).</li></ol> contact@aemjournal.org (AEM Editorial Team) contact@aemjournal.org (AEM Support) Sat, 11 Aug 2018 07:03:43 -0400 OJS 3.1.0.0 http://blogs.law.harvard.edu/tech/rss 60 PCB access impedances extraction method of in-situ integrated circuit https://www.aemjournal.org/index.php/AEM/article/view/854 <p>This article describes an extraction technique of input and output impedances of integrated circuits (ICs) implemented onto the printed circuit boards (PCBs). The feasibility of the technique is illustrated with a proof-of-concept (POC) constituted by two ICs operating in a typically transmitter-receiver (Tx-Rx) circuit. The POC system is assumed composed of three different blocks of emitter signal source, load and interconnect passive network. This latter one is assumed defined by its chain matrix known from its electrical and physical characteristics. The proposed impedance extraction method is elaborated from the given signals at the transmitter output and receiver input. The terminal access impedances are formulated in function of the parameters of the interconnect system chain matrix. The feasibility of the method is checked with a passive circuit constituted by transmission lines driven by voltage source with RL-series network internal impedance and loaded at the output by the RC-parallel network. Good correlation between the access impedance reference and calculated is found.</p> Z. Xu, B. Ravelo, J. Gantet, N. Marier ##submission.copyrightStatement## https://www.aemjournal.org/index.php/AEM/article/view/854 Sun, 19 Aug 2018 08:10:56 -0400 Design and Implementation of Multiband Microstrip Patch Antenna for Wireless Applications https://www.aemjournal.org/index.php/AEM/article/view/646 <p>Multiband phased array antennas are required for today’s multi-function communication applications. Generally Microstrip antenna arrays like Kotch array, Sierpinski array are used, but in some circuits where space is limited, arrays are not used. Therefore, to achieve the multiband operation with limited space, an antenna is designed with E-shaped in combination with split ring resonator to achieve the multiband operation. The simulation and experimental results show that the proposed antenna operates at four different frequencies, 1.8GHz, 3.6GHz, 4.53GHz and 5.73GHz, which can be used for different wireless applications like GSM 1800 (1.71– 1.78 GHz), WiMAX (3.4-3.69GHz) -IEEE 802.16 standards, Wi-Fi/WLAN (5.15-5.82 GHz). All the simulation results like resonant frequency, return loss, radiation patterns and fabricated antenna measured result is presented in this paper. The antenna is simulated using CST 2014 software.</p> L. Prasad, B. Ramesh, K. S. R. Kumar, K. P. Vinay ##submission.copyrightStatement## https://www.aemjournal.org/index.php/AEM/article/view/646 Sun, 19 Aug 2018 06:27:07 -0400 Compact Size Triple Notched-bands UWB Antenna with Sharp Band-Rejection Characteristics at WiMAX and WLAN Bands https://www.aemjournal.org/index.php/AEM/article/view/820 <p>In this paper, a compact triple band-notched Ultra Wideband (UWB) antenna with sharp band-elimination features and controlled notched bandwidths is proposed and discussed. The design is made up of a rectangular-shaped&nbsp;&nbsp; patch UWB planar monopole antenna with double collections of band-notched configurations. The band-notched configurations are involved to produce the desired lower and upper stop bands with good frequency selectivity and suitable stop bandwidths. The first notch is realized by using a C-shaped slot etched in the radiating patch in order to eliminate the interference at the WiMAX (3.4 - 3.8 GHz) applications. The second and the third notches are realized together by using a pair of U-shaped resonators that are located beside the feed line in both sides to eliminate the interference with the lower WLAN (5.15–5.35 GHz) and the higher WLAN (5.725–5.825GHz) bands.&nbsp; Additionally, the bandwidths of the lower and upper stop bands can be control separately by changing the parameters of the band-notched configurations. Furthermore, the suggested triple notched bands UWB antenna is optimized, fabricated, and measured for verification purposes. The measured results are close to the simulated ones.</p> M. F. Habash, A. S. Tantawy, H. A. Atallah, A. B. Abdel-Rahman ##submission.copyrightStatement## https://www.aemjournal.org/index.php/AEM/article/view/820 Sun, 19 Aug 2018 06:05:11 -0400 A High Gain Microstrip Patch Array for 5 GHz WLAN Applications https://www.aemjournal.org/index.php/AEM/article/view/783 <p>This paper presents the design, fabrication and measurement of a high gain 4-elements linear patch array, which uses the corporate feed technique with inset for excitation resonating at 5.216 𝐺𝐻z. &nbsp;is used as a dielectric substrate for the proposed array structure. The designed array is simulated and optimized by using CST microwave studio software. The element of the array is designed using the transmission-line model equations. The ground plane is made defective by incorporating slots and the reflective ground is utilized to enhance the gain of the array. The simulated and measured results for various parameters of the array are presented. The comparison between simulated and measured results show good agreement with little deviation. The optimized dimensions of the proposed design provides a maximum gain of 9.019 dB and a maximum directivity of 12.81 dBi. The antenna has been designed for the range &nbsp;which is one of the ranges for &nbsp;band for wireless local area networks (WLAN) applications as the &nbsp;standard states.</p> B. W. Ngobese, P. Kumar ##submission.copyrightStatement## https://www.aemjournal.org/index.php/AEM/article/view/783 Thu, 16 Aug 2018 07:55:06 -0400 A CPW - Fed Octagonal Ring Shaped Wide Band Antenna for Wireless Applications https://www.aemjournal.org/index.php/AEM/article/view/769 <p>A CPW – Fed octagonal ring shaped antenna for wideband operation is presented. The radiating patch of proposed octagonal ring antenna consists of symmetrical slot in place of conventional annular ring microstrip antenna. The ground plane consists of two rectangular slots, while the radiator and the ground plane are on same plane that utilizes the space available around the radiator. The proposed antenna is simulated through Ansoft’s High Frequency Structure Simulator (HFSS). Measured result shows balanced agreement with the simulated results. The prototype is taken with dimensions 47 mm × 47 mm × 1.6 mm that achieves good return loss, constant group delay and good radiation patterns over the entire operating bandwidth of 2.0 to 9.5 GHz (7.5 GHz). The proposed antenna achieves high impedance bandwidth of 130%. Thus, the proposed antenna is applicable for S and C band applications.</p> P. Khanna, A. Sharma, A. K. Singh, A. Kumar ##submission.copyrightStatement## https://www.aemjournal.org/index.php/AEM/article/view/769 Thu, 16 Aug 2018 07:34:53 -0400 Design of a Compact Dual-Band Metamaterial-Based Microstrip Antenna for X-Band Applications https://www.aemjournal.org/index.php/AEM/article/view/766 <p class="BodyTextKeep" style="page-break-after: auto;"><span style="font-size: 10.0pt;">In this paper, a design of highly effective dual-band microstrip antenna for X-band applications is developed. Dual-band response is obtained by etching four rectangular split ring resonator (RSRR) unit cells within the radiating element of a conventional patch initially designed to operate at 10 GHz. The proposed antenna is constructed on low lossy RT/duroid 5880 (ϵr = 2.2, tan δ = 0.0009) substrate of 20x20x1.575 mm3 total area. The antenna is tuned to operate at two resonant frequencies within 8 to 12 GHz depending on the geometric specifications of the RSRR's. A parametric study of different numbers of unit cells etched on the radiating element is investigated and discussed comprehensively through this study. Realized gain of about 6.2 and 6.8 dB at 8.8 and 10 GHz are attained. Consistent results are obtained between the measurements and simulation results using 3D full-wave FEM-base simulator.</span></p> E. K. I. Hamad, M. Z. M. Hamdalla ##submission.copyrightStatement## https://www.aemjournal.org/index.php/AEM/article/view/766 Thu, 16 Aug 2018 07:24:14 -0400 A Dual-Band Printed Slot Antenna for WiMAX and Metrological Wireless Applications https://www.aemjournal.org/index.php/AEM/article/view/765 <p>New microstrip antenna initiated from the portions of&nbsp; 1<sup>st</sup> order structures of Sierpinski square geometry is&nbsp; modeled&nbsp; in this paper as quasi-fractal device using an FR4 substrate of 4.4 dielectric constant, 1.6 mm thickness and 0.02 loss tangent. The intended microstrip antenna is designed for band frequencies&nbsp; of 3.5 and 7.8 GHz for WiMAX and metrological satellite applications with a bandwidth of 0.66 and 0.78 GHz for each band respectively. The designed antenna has considerable compact size&nbsp; that is smaller than many reported fractal and non-fractal antenna structures in the literature. Also, it has interesting return loss and radiation results that can be employed in diverse wireless devices. Measured input reflection coefficient, radiation patterns and gain results have been found in good agreement with those predicted by simulations.</p> Y. S. Mezaal, S. F. Abdulkareem, J. K. Ali ##submission.copyrightStatement## https://www.aemjournal.org/index.php/AEM/article/view/765 Thu, 16 Aug 2018 06:54:25 -0400 Gain Enhancement of Monopole Antenna using AMC Surface https://www.aemjournal.org/index.php/AEM/article/view/747 <p>A CPW rectangular-ring antenna over an Artificial Magnetic Conductor (AMC) is presented in this work. The AMC is a designed as a dual-band structure having an array of unit cells and operates at 2.45GHz and 5.20 GHz. A CPW antenna uses this dual-band AMC structures as a back-plane. Performance comparison is carried out with and without incorporation of AMC. The simulated and measured results show that the combination of the AMC reflector and the antenna provide directional properties at both frequency bands. It has been found that the antenna gain increases by about 5 dB.</p> F. Mouhouche, A. Azrar, M. Dehmas, K. Djafer ##submission.copyrightStatement## https://www.aemjournal.org/index.php/AEM/article/view/747 Thu, 16 Aug 2018 06:38:12 -0400 UHF RFID Tag Based on Modified Dihedral Corner for Enhanced Read Range and Broadband Operation https://www.aemjournal.org/index.php/AEM/article/view/723 <p class="AbstractHeading" style="text-align: justify; text-justify: inter-ideograph; page-break-after: avoid;"><span style="font-size: 10.0pt; font-weight: normal;">This paper presents the design and development of a novel UHF RFID tag which exhibits enhanced read range over the entire UHF RFID band of 860-930MHz. This novel UHF RFID tag consists of an antenna based on modified dihedral corner with an embedded double T-match and a </span><span style="font-weight: normal;">Murata LXMS 31ACNA010 chip attached to the terminals of the antenna. Measured read range variations over the azimuth and elevation angular ranges show enhanced read range over wide angular ranges as compared to conventional RFID tags.</span></p> J. K. Fijo, J. K. Aju, T. Mathew ##submission.copyrightStatement## https://www.aemjournal.org/index.php/AEM/article/view/723 Tue, 14 Aug 2018 07:38:17 -0400 A Novel Circular Slotted Microstrip-Fed Patch Antenna with three Triangle Shape Defected Ground Structure for Multiband Applications https://www.aemjournal.org/index.php/AEM/article/view/717 <p>In this paper, a novel circular slotted rectangular patch antenna with three triangle shape Defected Ground Structure (DGS) has been proposed. Radiating patch is made by cutting circular slots of radius 3 mm from the three sides and center of the conventional rectangular patch structure and three triangle shape defects are presented on the ground layer. The size of the proposed antenna is 38 X 25 mm<sup>2</sup>. Optimization is performed and simulation results have been obtained using Empire XCcel 5.51 software. Thus, a miniaturized antenna is designed which has three impedance bandwidths of 0.957 GHz, &nbsp;0.779 GHz, 0.665 GHz with resonant frequencies at 3.33 GHz, 6.97 GHz and 8.59 GHz and the corresponding return loss at the three resonant frequencies are -40 dB, -43 dB and -38.71 dB respectively. A prototype is also fabricated and tested. Fine agreement between the measured and simulated results has been obtained. It has been observed that introducing three triangle shape defects on the ground plane results in increased bandwidth, less return loss, good radiation pattern and better impedance matching over the required operating bands which can be used for wireless applications and future 5G applications.</p> A. Jaiswal, R. K. Sarin, B. Raj, S. Sukhija ##submission.copyrightStatement## https://www.aemjournal.org/index.php/AEM/article/view/717 Tue, 14 Aug 2018 07:28:00 -0400