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2015 International Workshop on Antenna Technology (iWAT)最新文献

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A simple method for miniaturization of self-complementary Archimedean spiral antenna 一种简单的自互补阿基米德螺旋天线小型化方法
2015 International Workshop on Antenna Technology (iWAT) Pub Date : 2015-12-28 DOI: 10.1109/IWAT.2015.7365328
J. Ahn, J. Jeong, H. Hong, Y. Yoon
{"title":"A simple method for miniaturization of self-complementary Archimedean spiral antenna","authors":"J. Ahn, J. Jeong, H. Hong, Y. Yoon","doi":"10.1109/IWAT.2015.7365328","DOIUrl":"https://doi.org/10.1109/IWAT.2015.7365328","url":null,"abstract":"This paper suggests a very simple method to miniaturize self-complementary Archimedean spiral antenna (SCASA). Just extending the ends of spiral arms within the outer radius of conventional spiral antenna can bring the lowest operating frequency down about 9%. Compared with the conventional design method, the proposed method leads to size reduction more than 17% despite the same operating frequency range.","PeriodicalId":342623,"journal":{"name":"2015 International Workshop on Antenna Technology (iWAT)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122270626","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
Miniaturized scalp-implantable antenna for wireless biotelemetry 用于无线生物遥测的微型头皮植入式天线
2015 International Workshop on Antenna Technology (iWAT) Pub Date : 2015-03-04 DOI: 10.1109/IWAT.2015.7365281
Imran Gani, H. Yoo
{"title":"Miniaturized scalp-implantable antenna for wireless biotelemetry","authors":"Imran Gani, H. Yoo","doi":"10.1109/IWAT.2015.7365281","DOIUrl":"https://doi.org/10.1109/IWAT.2015.7365281","url":null,"abstract":"In this study, we present a scalp implantable miniaturized biocompatible antenna at the medical implant communication service (MICS) band (402-405 MHz). The antenna dimension is only 26.4 mm3 (11 mm × 8 mm × 0.3 mm) which is an electrically small antenna. It provides a monopole like radiation pattern with radiation efficiency of 1.9%, -10dB impedance band-width of 42MHz and gain of -42.21 dB. These results are achieved when it is implanted in skin tissue of a human head model at 5mm depth. To reduce simulation time, initially the antenna was placed in a skin tissue simulating box of 5mm implant depth. For simulation in skin tissue box, Ansoft's EM simulator HFSS and for human head implantation, SEMCAD X FDTD software was used.","PeriodicalId":342623,"journal":{"name":"2015 International Workshop on Antenna Technology (iWAT)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115989142","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
Body-worn spiral monopole antenna for body-centric communications 用于身体中心通信的身体磨损螺旋单极天线
2015 International Workshop on Antenna Technology (iWAT) Pub Date : 2015-03-04 DOI: 10.1109/IWAT.2015.7365363
N. P. B. Kammersgaard, S. Kvist, J. Thaysen, K. Jakobsen
{"title":"Body-worn spiral monopole antenna for body-centric communications","authors":"N. P. B. Kammersgaard, S. Kvist, J. Thaysen, K. Jakobsen","doi":"10.1109/IWAT.2015.7365363","DOIUrl":"https://doi.org/10.1109/IWAT.2015.7365363","url":null,"abstract":"A novel body-worn spiral monopole antenna is presented. The antenna consists of a ground plane and a spiral monopole. The antenna is designed for Ear-to-Ear (E2E) communication between In-the-Ear (ITE) Hearing Instruments (HIs) at 2.45 GHz and has been simulated, prototyped and measured. The antenna yields a measured and simulated Ear-to-Ear path gain at 2.45 GHz of -82.1 dB and -85.9 dB, respectively. The radiation pattern of the antenna when mounted in the ear is presented and discussed.","PeriodicalId":342623,"journal":{"name":"2015 International Workshop on Antenna Technology (iWAT)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122963573","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
Analysis of coupling between antenna elements for flare angle determination in dual pulses GPR antenna 双脉冲探地雷达天线中各天线单元间的耦合分析
2015 International Workshop on Antenna Technology (iWAT) Pub Date : 2015-03-04 DOI: 10.1109/IWAT.2015.7365299
Y. Wahyu, F. Oktafiani, A. Lestari
{"title":"Analysis of coupling between antenna elements for flare angle determination in dual pulses GPR antenna","authors":"Y. Wahyu, F. Oktafiani, A. Lestari","doi":"10.1109/IWAT.2015.7365299","DOIUrl":"https://doi.org/10.1109/IWAT.2015.7365299","url":null,"abstract":"GPR (ground penetrating radar) survey to locate objects of unknown depth requires more than one type of pulse duration means using a number of antenna with different length. GPR antenna prototypes for two of the most optimum pulse is proposed dipole antenna consists of two pairs of antennas, each of the main antenna (short-length) of the feed point to bending (discontinuity) is equal to 3 cm and 6.5 cm for the main antenna (long-length). Model analysis for the coupling between the arms of the antenna mutual impedance analysis using two dipole orientation angle. Flare angle of 70 degree angles show mutual impedance lowest. This is consistent with FDTD (finite difference time domain) simulation results that the lowest coupling occurs at a flare angle of 70 degree.","PeriodicalId":342623,"journal":{"name":"2015 International Workshop on Antenna Technology (iWAT)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116873768","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
Isolation technique using the A/4 Stub RF Choke for the mobile MIMO system 移动MIMO系统的A/4短段射频扼流圈隔离技术
2015 International Workshop on Antenna Technology (iWAT) Pub Date : 2015-03-04 DOI: 10.1109/IWAT.2015.7365362
Seonho Lim, W. Choi, Y. Yoon, K. S. Ryu
{"title":"Isolation technique using the A/4 Stub RF Choke for the mobile MIMO system","authors":"Seonho Lim, W. Choi, Y. Yoon, K. S. Ryu","doi":"10.1109/IWAT.2015.7365362","DOIUrl":"https://doi.org/10.1109/IWAT.2015.7365362","url":null,"abstract":"The isolation technique using the λ /4 Stub RF Choke is proposed in this paper. The isolation technique between two antenna elements is important in order to prevent the edge current cause degradation of the antenna performances. The Radio Frequency choke (RFC) is placed in the middle of two conventional inverted-F antenna elements to improve the isolation between the two antennas. The shape of λ /4 Stub which is connected with the top of the ground plane is changed to reduce its physical size by bending and being burrowed into the ground plane. The MIMO antenna elements are well matched in the range of LTE 2300 (2300 ~ 2400 MHz) band and have a return loss under -6 dB (VSWR <; 3) also, the isolation is lower than -20 dB at the center frequency. The Envelope Correlation Coefficient (ECC) value is under 0.2 which shows that good isolation is achieved.","PeriodicalId":342623,"journal":{"name":"2015 International Workshop on Antenna Technology (iWAT)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128681933","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
Filtering characteristics of FSS for realizing perfect magnetic conductor without frequency dependence FSS滤波特性，实现无频率依赖的完美磁性导体
2015 International Workshop on Antenna Technology (iWAT) Pub Date : 2015-03-04 DOI: 10.1109/IWAT.2015.7365371
R. Kuse, T. Hori, M. Fujimoto
{"title":"Filtering characteristics of FSS for realizing perfect magnetic conductor without frequency dependence","authors":"R. Kuse, T. Hori, M. Fujimoto","doi":"10.1109/IWAT.2015.7365371","DOIUrl":"https://doi.org/10.1109/IWAT.2015.7365371","url":null,"abstract":"This paper focuses on an AMC (Artificial Magnetic Conductor) composed of a FSS (Frequency Selective Surface) and the ground plane, and describes the ideal filtering characteristics for realizing PMC (Perfect Magnetic Conductor) which is independent of frequency. The ideal filtering characteristics is derived from the condition for realizing the PMC in all the frequency using the relational expression between the filtering characteristics of a FSS and the PMC characteristics of the AMC. As the result, it is clarified that the ideal filter is a band pass filter. It is also shown that the optimum distance h between a FSS and the ground plane is a quarter wavelengths at the band pass frequency. On the other hand, it is found that the phase rotation direction is opposite compared with the conventional band pass frequency. It is found that the ideal filtering characteristics can be realized by using negative index material.","PeriodicalId":342623,"journal":{"name":"2015 International Workshop on Antenna Technology (iWAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129064905","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
A switchable printed antenna with a ground plane for 2.45/5 GHz wireless body area networks 用于2.45/5 GHz无线体域网络的具有接地平面的可切换印刷天线
2015 International Workshop on Antenna Technology (iWAT) Pub Date : 2015-03-04 DOI: 10.1109/IWAT.2015.7365350
S. M. Abbas, Y. Ranga, K. Esselle
{"title":"A switchable printed antenna with a ground plane for 2.45/5 GHz wireless body area networks","authors":"S. M. Abbas, Y. Ranga, K. Esselle","doi":"10.1109/IWAT.2015.7365350","DOIUrl":"https://doi.org/10.1109/IWAT.2015.7365350","url":null,"abstract":"This paper presents a switchable printed antenna with a full ground plane for wireless body area network devices operating in the industrial, scientific, and medical (ISM) band at 2.45 GHz and 5 GHz IEEE 802.11 Wireless Local Area Networks (WLAN) (5.15-5.35 GHz, 5.25-5.35 GHz). The operating bands can be switched between 2.45 GHz and 5 GHz by turning the switches ON/OFF. Investigations have been carried out in near body scenario to assess its performance for body centric wireless communication. The proposed antenna exhibits a wide radiation pattern along the body surface to provide wide coverage and its narrow width (14mm) makes it suitable for on-body applications.","PeriodicalId":342623,"journal":{"name":"2015 International Workshop on Antenna Technology (iWAT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121412723","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: 10
Study on evaluation method for FMCW radar using EM simulation 基于EM仿真的FMCW雷达评估方法研究
2015 International Workshop on Antenna Technology (iWAT) Pub Date : 2015-03-04 DOI: 10.1109/IWAT.2015.7365274
Han-Joong Kim, Sujin Kim, S. Yoo, H. Choo
{"title":"Study on evaluation method for FMCW radar using EM simulation","authors":"Han-Joong Kim, Sujin Kim, S. Yoo, H. Choo","doi":"10.1109/IWAT.2015.7365274","DOIUrl":"https://doi.org/10.1109/IWAT.2015.7365274","url":null,"abstract":"This paper proposed the test setup for performance evaluation of an FMCW radar. The test setup includes multiple targets with different velocities, which represents the boundary of a certain detection region. The surrounding environments, such as the position and direction of the antenna arrays and ground conditions are also included in the test setup. The metric for evaluation of the detection performance is then defined as a cost function that utilizes the amplitude of each boundary target on a range-Doppler image. Using the proposed test setup and the cost function, the antenna HPBW is optimized and the results demonstrate the method is suitable for performance evaluation of the FMCW radar.","PeriodicalId":342623,"journal":{"name":"2015 International Workshop on Antenna Technology (iWAT)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126286332","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
Multi-polarized antenna array configuration for mmWave 5G mobile terminals 毫米波5G移动终端的多极化天线阵列配置
2015 International Workshop on Antenna Technology (iWAT) Pub Date : 2015-03-04 DOI: 10.1109/IWAT.2015.7365311
W. Hong, S. Ko, Youngju Lee, K. Baek
{"title":"Multi-polarized antenna array configuration for mmWave 5G mobile terminals","authors":"W. Hong, S. Ko, Youngju Lee, K. Baek","doi":"10.1109/IWAT.2015.7365311","DOIUrl":"https://doi.org/10.1109/IWAT.2015.7365311","url":null,"abstract":"Novel antenna design technologies are devised at 28 GHz to realize vertical and horizontal polarizations and its combined radiation characteristics using ultra-thin printed circuit board (PCB) substrates. Details of the design methodologies, simulation and measurement results are presented and discussed in relation to the targeted mmWave 5G mobile application.","PeriodicalId":342623,"journal":{"name":"2015 International Workshop on Antenna Technology (iWAT)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115869379","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: 27
On-chip, efficient and small antenna array for millimeter-wave applications 片上，高效和小型天线阵列的毫米波应用
2015 International Workshop on Antenna Technology (iWAT) Pub Date : 2015-03-04 DOI: 10.1109/IWAT.2015.7365337
H. Dinis, M. Zamith, J. Fernandes, J. Magalhaes, P. Mendes
{"title":"On-chip, efficient and small antenna array for millimeter-wave applications","authors":"H. Dinis, M. Zamith, J. Fernandes, J. Magalhaes, P. Mendes","doi":"10.1109/IWAT.2015.7365337","DOIUrl":"https://doi.org/10.1109/IWAT.2015.7365337","url":null,"abstract":"The high path losses experienced by wireless applications at millimeter wavelengths may be mitigated using high gain antennas. The intrinsic small wavelengths makes very attractive to develop solutions with on-chip integrated antennas. However, due to silicon high losses, on-chip antenna elements on RFCMOS technology have reduced efficiency. This paper proposes a solution to obtain an on-chip integrated antenna array based on 3D efficient antenna elements. A 4 element antenna was designed to operate at 57.5 GHz central frequency, with maximum gain of 5.8 dB, and maximum expected efficiency of 45%.","PeriodicalId":342623,"journal":{"name":"2015 International Workshop on Antenna Technology (iWAT)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130184196","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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