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2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)最新文献

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Horn and Prism Antenna for Dual Range and Dual FOV Automotive Radar Using 77-GHz Band 77 ghz波段双距离双视场汽车雷达喇叭棱镜天线
2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2018-08-01 DOI: 10.1109/ANTEM.2018.8572918
H. Nagaishi, A. Kuriyama, H. Kuroda, Akira Kitayama
{"title":"Horn and Prism Antenna for Dual Range and Dual FOV Automotive Radar Using 77-GHz Band","authors":"H. Nagaishi, A. Kuriyama, H. Kuroda, Akira Kitayama","doi":"10.1109/ANTEM.2018.8572918","DOIUrl":"https://doi.org/10.1109/ANTEM.2018.8572918","url":null,"abstract":"A novel antenna with a horn array was investigated for a dual range and dual field of view (FOV) automotive radar that uses the 77-GHz band. The structure of the antenna, composed of three types of horn, lens, and prism antennas with different directivities, produces a radiation pattern that had both a narrow FOV at a long-range detection and wide FOV at shortrange detection. A fabricated antenna achieved an antenna gain of 21.5 dBi and a 3-dB beam-width of 22 degrees at boresight and an antenna gain of more than 15 dBi within an angle of ±35 degrees in azimuth. The antenna had a matching band-width of 7 GHz, where the reflection co-efficient, S11, was below −10 dB.","PeriodicalId":128207,"journal":{"name":"2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114654973","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}
引用次数: 4
Compact RGW Differential Phase Shifter for Millimeter-Wave Applications 毫米波应用的紧凑型RGW差分移相器
2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2018-08-01 DOI: 10.1109/ANTEM.2018.8572849
Mohamed A. Abdelaal, S. Shams, A. Kishk
{"title":"Compact RGW Differential Phase Shifter for Millimeter-Wave Applications","authors":"Mohamed A. Abdelaal, S. Shams, A. Kishk","doi":"10.1109/ANTEM.2018.8572849","DOIUrl":"https://doi.org/10.1109/ANTEM.2018.8572849","url":null,"abstract":"Millimeter wave systems are in a growing need for compact size phased antenna arrays, hence, compact phase shifters, as well. In addition, there are other numerous applications like isolators, filters, and couplers that deploy the phase shifter as an essential component. To implement the proposed phase shifter the Ridge Gap Waveguide (RGW) structure is selected. RGW technology has the advantage of wideband operation over other technologies. Moreover, RGW structures have lower losses and better performance in the millimeter wave band. This work introduces a new RGW structure that deploys ferrite slabs to make a differential phase shifter with very compact size and ultra-flat phase. The proposed non-reciprocal 90° differential phase shifter has less than 10° of phase variations over the operating band.","PeriodicalId":128207,"journal":{"name":"2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114689919","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}
引用次数: 8
Research on Antennas for Biomedical Applications 生物医学应用天线研究
2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2018-08-01 DOI: 10.1109/ANTEM.2018.8572928
S. Noghanian
{"title":"Research on Antennas for Biomedical Applications","authors":"S. Noghanian","doi":"10.1109/ANTEM.2018.8572928","DOIUrl":"https://doi.org/10.1109/ANTEM.2018.8572928","url":null,"abstract":"In this paper, an overview of some of the research activities in the Applied Electro-Magnetics Engineering Laboratory (AEMEL) are summarized. The major topics presented here are related to our research on antennas for biomedical applications.","PeriodicalId":128207,"journal":{"name":"2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125923711","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}
引用次数: 0
High Efficiency and Small Antenna With Horn and Lens for 77 GHz Automotive Radar 用于77 GHz汽车雷达的高效率小型喇叭和镜头天线
2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2018-08-01 DOI: 10.1109/ANTEM.2018.8572931
A. Kuriyama, H. Nagaishi, H. Kuroda, Akira Kitayama, Satoshi Sasaki
{"title":"High Efficiency and Small Antenna With Horn and Lens for 77 GHz Automotive Radar","authors":"A. Kuriyama, H. Nagaishi, H. Kuroda, Akira Kitayama, Satoshi Sasaki","doi":"10.1109/ANTEM.2018.8572931","DOIUrl":"https://doi.org/10.1109/ANTEM.2018.8572931","url":null,"abstract":"An antenna with a pyramidal horn and a dielectric lens was investigated to reduce a size of long-range automotive radars in the 77-GHz band. By employing an array with two horns and lenses where a diameter of the lens was half of whole output-aperture length, a height of the antenna was reduced while keeping an antenna efficiency high. The fabricated antenna with commercially available materials had the height of 14 mm and achieved the antenna efficiency of 45.6% and a frequency bandwidth of 5 GHz where reflection coefficient S11 was below −10 dB. The antenna had a flat beam whose 3-dB beamwidth was 4.5° in elevation and 15° in azimuth, meaning that the antenna can be used for long range radar with a single beam.","PeriodicalId":128207,"journal":{"name":"2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124815339","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}
引用次数: 2
Plasmon Excitation and Transition Radiation in Graphene Traversed by a Fast Charged Particle 快电荷粒子穿越石墨烯中的等离子激元激发和跃迁辐射
2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2018-08-01 DOI: 10.1109/ANTEM.2018.8573010
Z. Mišković, K. Akbari
{"title":"Plasmon Excitation and Transition Radiation in Graphene Traversed by a Fast Charged Particle","authors":"Z. Mišković, K. Akbari","doi":"10.1109/ANTEM.2018.8573010","DOIUrl":"https://doi.org/10.1109/ANTEM.2018.8573010","url":null,"abstract":"A progress report is presented on recent theoretical investigations of the interaction of fast charged particles with single and multiple graphene layers. By adopting a fully relativistic formulation of the problem, special focus is placed on retardation effects in the energy loss of a charged particle due to electronic excitations in graphene, which include its plasmon polariton modes, as well as the energy that is emitted from graphene in the form of transition radiation. Using both empirical and ab initio models for the dynamic in-plane conductivity of graphene allows the exploration of energy losses at frequencies ranging from the terahertz to the ultraviolet.","PeriodicalId":128207,"journal":{"name":"2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"366 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121731994","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}
引用次数: 0
New Tecnhique for IoT indoor localization by employing segmented UHF RFID bandwith using bandpass filters and circulators 物联网室内定位的新技术，采用分段UHF RFID带通滤波器和环行器
2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2018-08-01 DOI: 10.1109/ANTEM.2018.8573027
H. Hammad
{"title":"New Tecnhique for IoT indoor localization by employing segmented UHF RFID bandwith using bandpass filters and circulators","authors":"H. Hammad","doi":"10.1109/ANTEM.2018.8573027","DOIUrl":"https://doi.org/10.1109/ANTEM.2018.8573027","url":null,"abstract":"This paper proposes a new technique to extend the use of the UHF RFID technology in IoT localization-based applications. The technique is based on segmenting the bandwidth of the UHF RFID into smaller equal segments with the use of band pass filters and circulators. The system analysis performed using CST and signal flow graph derived equations.","PeriodicalId":128207,"journal":{"name":"2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131510630","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}
引用次数: 0
Dual-Beam Leaky-Wave Antenna Based on Substrate Integrated Printed Ridge Gap Waveguide 基于基板集成印刷脊隙波导的双波束漏波天线
2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2018-08-01 DOI: 10.1109/ANTEM.2018.8572845
M. Rahimi, A. Kishk
{"title":"Dual-Beam Leaky-Wave Antenna Based on Substrate Integrated Printed Ridge Gap Waveguide","authors":"M. Rahimi, A. Kishk","doi":"10.1109/ANTEM.2018.8572845","DOIUrl":"https://doi.org/10.1109/ANTEM.2018.8572845","url":null,"abstract":"A dual-beam leaky-wave antenna (LWA) based on the printed ridge gap waveguide (PRGW) technology is presented. A new H-polarized 1D-periodic substrate integrated gap waveguide leaky-wave antenna (SIGW-LWA) is designed, which has good scanning in backward and forward quadrant simultaneously. A dual-beam radiation pattern is achieved due to simultaneous excitation of two space harmonics (β-1 and β-2). The beams scanning range for the proposed antenna started from -67° to -35° for the proper wave and 16° to 28° for the improper wave. The peak gains of the antenna for the proper and improper waves are 17.4 dBi and 16.2 dBi, respectively, with less than 1.3 dBi variation in both quadrants. The proposed antenna has wide impedance bandwidth and narrow fan beams through the whole operating frequency band of 59–67 GHz.","PeriodicalId":128207,"journal":{"name":"2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"75 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131550766","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}
引用次数: 1
On the Number of Degrees of Freedom in Dual-Polarized GNSS Adaptive Arrays 双极化GNSS自适应阵列的自由度数研究
2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2018-08-01 DOI: 10.1109/ANTEM.2018.8572960
Navid Rezazadeh, L. Shafai
{"title":"On the Number of Degrees of Freedom in Dual-Polarized GNSS Adaptive Arrays","authors":"Navid Rezazadeh, L. Shafai","doi":"10.1109/ANTEM.2018.8572960","DOIUrl":"https://doi.org/10.1109/ANTEM.2018.8572960","url":null,"abstract":"It is known that a dual-polarized adaptive array with N elements has a maximum of 2N-1 degrees of freedom for beamforming. For small global navigation satellite system (GNSS) adaptive arrays, we show that this maximum can be easily achieved if the interferer polarizations are random. For the case of right-hand circularly-polarized (RHCP) interferers however, we show that the maximum degrees of freedom can only be achieved if the element patterns are asymmetric in the principal E- and H-planes.","PeriodicalId":128207,"journal":{"name":"2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"353 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122336593","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}
引用次数: 0
Investigation on the Effect of Roughness of 3D Printed Structure on Performance of Microwave Devices 三维打印结构粗糙度对微波器件性能影响的研究
2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2018-08-01 DOI: 10.1109/ANTEM.2018.8572974
H. Saghlatoon, R. Mirzavand, P. Mousavi, M. M. Honari
{"title":"Investigation on the Effect of Roughness of 3D Printed Structure on Performance of Microwave Devices","authors":"H. Saghlatoon, R. Mirzavand, P. Mousavi, M. M. Honari","doi":"10.1109/ANTEM.2018.8572974","DOIUrl":"https://doi.org/10.1109/ANTEM.2018.8572974","url":null,"abstract":"In this paper, 3D printed X band waveguide are proposed with epoxy coating as the conductor. Since the 3D printed structures end up having rough surfaces due to laying separate layers of the melted plastic on top of each other, this phenomena should be also considered in the simulation model. The roughness of the surface depends on the printing tip dimensions and the printing conditions. The whole structure is printed with a 3D printer and then is dipped into a low viscosity conductive solution to form the conductive layer on the inner walls of the waveguide. The waveguide system then is fed using coaxial cables. The results show the roughness can influence the transmission loss especially if the conductivity of the coated conductor layer is not as high as the conventional waveguide.","PeriodicalId":128207,"journal":{"name":"2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129561869","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}
引用次数: 2
Circularly Polarized RGW Slot Antenna Fed by Ferrite Based Phase Shifter 基于铁氧体移相器馈电的圆极化RGW槽天线
2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2018-08-01 DOI: 10.1109/ANTEM.2018.8573016
Mohamed A. Abdelaal, S. Shams, A. Kishk
{"title":"Circularly Polarized RGW Slot Antenna Fed by Ferrite Based Phase Shifter","authors":"Mohamed A. Abdelaal, S. Shams, A. Kishk","doi":"10.1109/ANTEM.2018.8573016","DOIUrl":"https://doi.org/10.1109/ANTEM.2018.8573016","url":null,"abstract":"Ridge Gap Waveguide (RGW) technology is a promising technology, especially for the millimeter wave bands. Hence, the need for antennas utilizing the same technology is growing fast to provide complete solutions to the applications in the millimeter wave band. Both linear polarization and circular polarization are deployed in the communication systems depending on the required system needs. Antennas with circular polarization have a remarkable advantage over the linear antennas since they overcome the polarization mismatching and misalignment problems. Here, a circularly polarized antenna that deploys a compact ferrite based differential phase shifter is introduced. The proposed antenna has an impedance matching bandwidth of 16.67% at 30 GHz with a 3 dB axial ratio. Simulations are obtained by two numerical packages, where both results have an excellent agreement with each other.","PeriodicalId":128207,"journal":{"name":"2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129568360","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}
引用次数: 2
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