Touseef Hayat, Muhammad U.Afzal, A. Lalbakhsh, F. Ahmed, Karu P.Esselle
{"title":"Comparative Analysis of Highly Transmitting Phase Correcting Structures for Electromagnetic Bandgap Resonator Antenna","authors":"Touseef Hayat, Muhammad U.Afzal, A. Lalbakhsh, F. Ahmed, Karu P.Esselle","doi":"10.1109/iWAT48004.2020.1570606404","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570606404","url":null,"abstract":"A comparative analysis of two phase correcting structures (PCSs) is presented for an electromagnetic-bandgap resonator antenna (ERA). PCSs are made out of two distinct high and low permittivity materials i.e. Rogers O3010 and polylactic acid (PLA), respectively. Design and performance analysis is based on superstrate height profile, side-lobe levels, antenna directivity, aperture efficiency, prototyping technique and cost. Insertion loss for both superstrates is greater than 0.1 dB, assuring the maximum transmission of the antenna’s radiations through the PCSs. The presented study is based on full wave analysis used to integrate sections of superstrate with custom phase-delays, to attain nearly uniform phase at the output, resulting in improved radiation performance of antenna. The peak directivity of the ERA loaded with Rogers O3010 PCS has increased by 7.3 dB, which is 1.2 dB higher than that of PLA PCS. In addition, the height of the PCS made of Rogers is 71.3% smaller than the PLA PCS. However, the former will involve fabrication complexities related to machining compared to the latter which can be additively manufactured in single step.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132488288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Boursianis, S. Goudos, T. Yioultsis, K. Siakavara, P. Rocca
{"title":"MIMO Antenna Design for 5G Communication Systems Using Salp Swarm Algorithm","authors":"A. Boursianis, S. Goudos, T. Yioultsis, K. Siakavara, P. Rocca","doi":"10.1109/iWAT48004.2020.1570618331","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570618331","url":null,"abstract":"Multiple Input Multiple Output (MIMO) antennas will be a part of every new user device in 5G networks. In this paper, we design a MIMO antenna for 5G networks using a nature-inspired algorithm, namely the Salp Swarm Algorithm (SSA). We select a bow tie antenna as the element of the MIMO operating in n257 frequency band (center frequency at 28GHz). Firstly, we design and optimize the antenna element using the SSA algorithm. Secondly, a MIMO antenna is designed using the optimal dimensions of the antenna element. Numerical results demonstrate that the proposed MIMO antenna has a small size and exhibits wideband operation in the desired frequency band.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"103 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131269481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mitsuhiro Ichinose, K. Matsubayashi, N. Michishita, H. Morishita
{"title":"Study on Broadband Sleeve Antenna with Plate Element and Parasitic Element","authors":"Mitsuhiro Ichinose, K. Matsubayashi, N. Michishita, H. Morishita","doi":"10.1109/iWAT48004.2020.1570609810","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570609810","url":null,"abstract":"A conventional sleeve antenna is composed of a coaxial cable, an inner conductor and a choke structure. The choke structure suppresses a leakage current flows on the outer conductor of the coaxial cable. In this paper, the planar sleeve antenna with flat element is proposed. The relative bandwidth (VSWR $leq$ 3) of the proposed antenna is 125.9% (from 810 MHz to 3560 MHz) in simulation. The proposed antenna works in broadband and has simple structure.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133854587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Folded Crossed-Dipole Antenna for Circular Polarization","authors":"K. E. Kedze, I. Park","doi":"10.1109/iWAT48004.2020.1570604152","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570604152","url":null,"abstract":"We present a small compact crossed-dipole antenna comprising two printed folded crossed-dipole arms and a pair of vacant quarter printed rings to generate circular polarization (CP). The design of a compact, small-sized CP antenna is realized by rotating the arms of a conventional crossed dipole and then folding the rotated arms twice into a figure-eight-like structure. By undertaking these rotation and folding techniques, we achieve a miniaturized CP crosseddipole antenna that performs satisfactorily. The compact crossed-dipole folded antenna with overall dimensions of 22.3 mm×39.9 mm×0.508 mm $(0.22 lambda_{0} times 0.39 lambda_{0} times 0.0052 lambda_{0}$ at 3.07. GHz) has a measured $|S_{11}| lt - 10 mathrm{dB}$ impedance bandwidth of 2.81-3.51 GHz (22.15%) and a simulated 3-dB axial bandwidth of 2.85-3.30 GHz (14.63%).","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114592299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Simulation and Optimization of the Design of Focusing Dielectric Lenses based on Cartesian Ovals with Physical Optics","authors":"Orell Garten, J. Barowski, I. Rolfes","doi":"10.1109/iWAT48004.2020.1570609732","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570609732","url":null,"abstract":"This paper presents the design of a focusing dielectric lens, which is described by a so-called Cartesian oval. The mathematical model of Cartesian ovals is introduced briefly. Next, a physical optics (PO) approach for the simulation of the electric field outside of the antenna is presented. Simulation results at 80 GHz are shown. The agreement between a full wave reference method and the proposed method is good, especially in the focal region. The simulation time is decreased significantly by the asymptotic PO approach compared to the finite integration technique. Eventually, a lens design is optimized with the PO to achieve the desired focal point.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128746094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Propagation Study of Dual Composite Right Left Handed Structures on Textile Materials","authors":"I. Mocanu, Laura-Maria Dogariu","doi":"10.1109/iWAT48004.2020.1570609909","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570609909","url":null,"abstract":"This paper investigates the effect on the frequency behavior of the thickness of the conductive paste and the type of textile used to design a Dual Composite Right Left-Handed transmission line. The results show that there is no significant difference for different conductive paste thicknesses over performances. On the other hand, polyester plain is more indicated for implementation of artificial transmission lines on textiles, as its loss tangent is ten times smaller than the cotton twill, thus assuring improved performances.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128190330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Nguyen, Itsuki Sasaki, Yuta Nakagawa, H. Morishita
{"title":"A Simple Printed Dipole Antenna with Broadband Characteristics","authors":"T. Nguyen, Itsuki Sasaki, Yuta Nakagawa, H. Morishita","doi":"10.1109/iWAT48004.2020.1570609904","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570609904","url":null,"abstract":"This paper presents a microstrip-fed printed dipole antenna (PDA) which can cover a wide frequency band (roughly 80% for $|mathrm{S}_{11}| gt$ -$6 mathrm{d}mathrm{B}$), and maintain the omnidirectional radiation patterns in the entire operation band. The antenna shape is very simple. Two identical arms of the antenna upon two sides of an FR-4 substrate are placed inversely to each other and their shapes are similar to that of an inset-fed rectangular patch antenna. Our results show that the proposed antenna is very capable for many applications of small antennas while it has the compact size of $ 0.3lambdatimes 0.008lambda$ at the minimum operation frequency of $|mathrm{S}_{11}|=-6mathrm{d}mathrm{B}$.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129665589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Two-dimensional Polarity Orthogonal Multiplexing Antenna System for Non-far Region Communication","authors":"J. Hirokawa, T. Tomura","doi":"10.1109/iWAT48004.2020.1570594391","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570594391","url":null,"abstract":"This paper presents an orthogonal multiplexing antenna system for non-far region communication, which is based on two-dimensional polarity in the rectangular coordinate system. In other words, it is based on two-fold symmetry and anti-symmetry between the transmission modes. The twodimensional polarity comes from the structural symmetry of magic-T components used in the corporate-feed circuit in the antenna in the millimeter-wave band. The structural symmetry gives wideband operation. The feasibility is shown by a system where a corporate-feed waveguide slot array antenna and a monopulse circuit are combined. 4-multiplexing 40cmtransmission using 16x16-slot arrays are confirmed by experiments in the 80GHz band. The transmission enhancement is also shown by optimizing the excitation in the slot array for a given distance and by the dual polarization use.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127257650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bandwidth Enhancement Techniques for 4G/5G Planar Antenna","authors":"M. Khalifa, F. Ibrahim, H. Elbadawy, L. Khashan","doi":"10.1109/iWAT48004.2020.1570608008","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570608008","url":null,"abstract":"5G New Radio (NR) is becoming an increasingly interesting topic in the field of mobile communications. It requires to fulfill the requirements of better quality of service and high data rate for the wireless applications. 5G antennas are required to have a small size to fit into smart phones and to cover the maximum band of operation. In this paper, different techniques are introduced that maximize the band of operation whilst keeping the antenna size to minimal, and an antenna is proposed that covers the frequency band 1.24 - 5GHz except for the band 2.3 - 3 GHz of the 4G/5G NR bands.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130195693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stack-layered Coupled-resonator Filtering Antenna","authors":"H. S. Farahani, B. Rezaee, Wolfgang Boesch","doi":"10.1109/iWAT48004.2020.1570612838","DOIUrl":"https://doi.org/10.1109/iWAT48004.2020.1570612838","url":null,"abstract":"This paper introduces a new design methodology of filtering antenna (filtenna) based on the coupled radiating resonator structure. The idea is to integrate both filter and antenna as a single component with combined treatment. The patch antenna structure backed by substrate integrated cavity (SIC) resonator is effectively employed to comply with coupled-resonator filtering function. The proposed filtenna is a compact stack-layered array antenna module with the aim of highly integrated 5G massive array antenna application. A fourth-degree filtenna with operating frequency band of 27-29 GHz and return loss better than 22-dB is designed to verify the design method. The simulated results are in good agreement compared with those of analytical synthesis and circuit model.","PeriodicalId":230714,"journal":{"name":"2020 International Workshop on Antenna Technology (iWAT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130524221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}