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2016 International Workshop on Antenna Technology (iWAT)最新文献

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Multi-material additive manufacturing of antennas 天线的多材料增材制造
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434820
M. Mirotznik, Z. Larimore, P. Pa, P. Parsons, Matthew Mills
{"title":"Multi-material additive manufacturing of antennas","authors":"M. Mirotznik, Z. Larimore, P. Pa, P. Parsons, Matthew Mills","doi":"10.1109/IWAT.2016.7434820","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434820","url":null,"abstract":"In this presentation we will describe several different antenna technologies fully fabricated using multi-material additive manufacturing. We will show that combining standard fused deposition modelling with micro-dispensing printing enables us to realize mechanically robust antenna systems that contain spatially variable dielectric and magnetic properties and intricate 3D conducting networks.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124794065","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: 13
Broadband hybrid water antenna for ISM-band ingestible capsule endoscope systems 用于ism波段可消化胶囊内窥镜系统的宽带混合水天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434808
Yunnan Jin, J. Tak, Jaehoon Choi
{"title":"Broadband hybrid water antenna for ISM-band ingestible capsule endoscope systems","authors":"Yunnan Jin, J. Tak, Jaehoon Choi","doi":"10.1109/IWAT.2016.7434808","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434808","url":null,"abstract":"A broadband hybrid water antenna for ingestible capsule endoscope systems at Industrial, Science and Medical (ISM 2.45 GHz) band is proposed. The proposed antenna consists of a cylindrical conducting monopole antenna, saline-water, and a biocompatible shell. The antenna has a wide -10 dB reflection coefficient bandwidth from 1.89 GHz to 4.51 GHz (a fractional bandwidth of 106.9%) with a compact volume (approximately 1.53 cm3). To evaluate the effects on the antenna performance, electrical components (battery, camera, and transceiver) are modeled as a PEC cylinder inside the capsule. In addition, the specific absorption rate (SAR) performance of the proposed antenna is also analyzed by SEMCAD.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124676102","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: 7
New advances in gain measurements in non-anechoic sites: Application to narrow band monopoles 非消声位置增益测量的新进展:窄带单极子的应用
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434801
R. Tamas
{"title":"New advances in gain measurements in non-anechoic sites: Application to narrow band monopoles","authors":"R. Tamas","doi":"10.1109/IWAT.2016.7434801","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434801","url":null,"abstract":"Previously, the author has described a method for measuring the antenna gain in non-anechoic sites. The effects of reflection and diffraction on the neighboring objects can be dramatically reduced by averaging, over a set of distances, a normalized transfer function of the system consisting of the antenna under test and the measuring antenna. The method was successfully tested on dipole type, ultra-wide band antennas. This paper, presents further results on measuring narrow band, monopole antennas. It comes out that averaging does not remove the effect of the diffraction on scatterers close to the radiating element, such as the edges of the antenna ground plane; conversely, it reasonably reduces the effects of scatterers placed at several wavelengths away from the antenna under test.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129240016","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
A low profile penta-band antenna for portable devices 一种用于便携式设备的低轮廓五波段天线
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434835
U. Shameem, M. Ur-Rehman, Q. Abbasi, K. Qaraqe
{"title":"A low profile penta-band antenna for portable devices","authors":"U. Shameem, M. Ur-Rehman, Q. Abbasi, K. Qaraqe","doi":"10.1109/IWAT.2016.7434835","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434835","url":null,"abstract":"Recent years have seen a rapid growth of portable wireless communication systems. Limited form factor and operation at multiple frequencies of these devices require novel solutions of efficient embedded antennas. It has increased the demand of microstrip patch antennas due to their inherent properties of being low profile, simple design, small size and ease of fabrication and integration. Miniaturisation requirements have seen rise of multiband patch antennas. This paper presents the design and analysis of a novel multiband microstrip patch antenna. The antenna consists of a rectangular slot with two E-shaped stubs on both of its sides. An inverted T-shaped stub is present on the upper side of the slot while an I-shaped stub is there on the bottom side. A T-shaped feeding line feeds the antenna. The slot, stubs and feed collectively produce five frequency bands centred at 1.5 GHz, 2.2 GHz, 3.1 GHz, 4.2 GHz and 5.3 GHz for LTE/4G/5G, WiBro/WiMax, Satcomm and WLAN applications. The antenna offers small size, good impedance bandwidth and high gain at all operating frequencies.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127064455","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: 7
Permittivity and dielectric loss measurement of paraffin films for mmW and THz applications 毫米波和太赫兹应用石蜡薄膜的介电常数和介电损耗测量
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434797
Behnam Ghassemiparvin, N. Ghalichechian
{"title":"Permittivity and dielectric loss measurement of paraffin films for mmW and THz applications","authors":"Behnam Ghassemiparvin, N. Ghalichechian","doi":"10.1109/IWAT.2016.7434797","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434797","url":null,"abstract":"Complex permittivity measurement of thick paraffin films at the frequency range of 0.3 THz-1 THz is presented. Paraffin is a low loss dielectric that undergoes reversible volumetric mechanical phase change. These unique properties of the paraffin can be employed to develop reconfigurable antenna systems and RF components at millimeter wave (mmW) and terahertz (THz) bands. In order to characterize the dielectric properties of the paraffin, terahertz time domain spectroscopy is used. Complex dielectric permittivity is modeled using Havriliak-Negami relaxation and measured data are fitted using three-layer propagation model. Measured loss tangent for various paraffin films is in the range of 0.3 × 10-3-7.7 × 10-3 and the relative permittivity is found to be 2.26.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129305372","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: 7
Technique for realizing specific radiation patterns of antennas operating in mobile phones and topside environments 实现在移动电话和上层环境中工作的天线的特定辐射方向图的技术
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434813
C. Li, R. Mittra
{"title":"Technique for realizing specific radiation patterns of antennas operating in mobile phones and topside environments","authors":"C. Li, R. Mittra","doi":"10.1109/IWAT.2016.7434813","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434813","url":null,"abstract":"A novel technique for realizing specified patterns radiated by antenna systems located on a given platform, such as mobile phone or shipboard topside environment is presented in this work. The proposed technique is based on the use of Characteristic Basis Functions (CBFs) that are extracted from the solutions for the current distributions generated by placing the user-specified antenna elements, e.g., a monopole or a PIFA at \"allowable\" locations on the antenna platform. Some examples illustrating the application of the CBF approach to antenna pattern synthesis in a systematic manner are presented in the paper and a comparison of the present technique with that based on the use of the Characteristic mode approach is included.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123908083","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
Studies on a fabric feed line sewn to a flexible slot antenna 缝在柔性槽形天线上的织物馈线的研究
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434786
K. Fujiwara, H. Shimasaki, K. Morimoto
{"title":"Studies on a fabric feed line sewn to a flexible slot antenna","authors":"K. Fujiwara, H. Shimasaki, K. Morimoto","doi":"10.1109/IWAT.2016.7434786","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434786","url":null,"abstract":"A flexible textile antenna has been fabricated using a polyester fabric as a substrate of the feed line to the antenna and studied in bending cases. The antenna is a cavity-backed slot antenna (CBSA) made of conductive textiles. The substrate of the feed line is also a textile sheet rather than conventional material in order to make the antenna more flexible. Moreover, the feed line is fixed by sewing directly to the CBSA to prevent a gap between the feed line and the antenna. The antenna performances in 2.4-GHz band have been measured depending on the radius of curvature of the antenna and compared with those fixing the feed line by adhesive tape in the previous study. The results revealed that the -10 dB bandwidth in the sewing case is wider than that by the previous case. Thus, we suggest that the antenna characteristics can be improved by the reduction of unnecessary deformation of the feed line and the antenna.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121445524","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
Effect of human body shadowing on UWB radio channel 人体阴影对超宽带无线电信道的影响
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434803
E. Sasaki, Hidenobu Hanaki, Hiroaki Iwashita, Kazuki Naiki, A. Kajiwara
{"title":"Effect of human body shadowing on UWB radio channel","authors":"E. Sasaki, Hidenobu Hanaki, Hiroaki Iwashita, Kazuki Naiki, A. Kajiwara","doi":"10.1109/IWAT.2016.7434803","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434803","url":null,"abstract":"A body area network has recently attracted attentions which is a UWB based wireless network of wearable devices. The device may be surface-mounted on the body of a man and inside in his clothes pocket. Therefore the channel may be deteriorated due to a human body shadowing with the device. However, there are a few papers regarding the effect of human body shadowing for ultra-wideband (UWB) band applications as far as we know. In this paper, we conducted UWB measurements and investigated the effect for various scenarios.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131858991","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
UWB radar for indoor detection and ranging of moving objects: An experimental study 用于室内运动物体探测和测距的超宽带雷达:实验研究
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434814
W. Khawaja, Kory Sasaoka, I. Guvenc
{"title":"UWB radar for indoor detection and ranging of moving objects: An experimental study","authors":"W. Khawaja, Kory Sasaoka, I. Guvenc","doi":"10.1109/IWAT.2016.7434814","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434814","url":null,"abstract":"Ultrawideband (UWB) signals, due to their large bandwidth, can capture the fine temporal resolution of multipath propagation channel. This can be used for extracting geometric information related to the surrounding environment. In particular, Time Domain P410 UWB radios are used in our experiments, for channel sounding in bi-static and monostatic modes. In this paper, UWB radio pulses are used to determine the channel impulse response (CIR) in indoor environment. Based on the measured CIR, a statistical model is developed that is used in detection and range estimation of moving objects in indoor line-of-sight environment. The CIR measurements at different distances are used to study and model various channel characteristics in time and frequency domain. Our results show that UWB radar is capable of accurately detecting trajectory and speed of moving objects in indoor environments with minimum post-processing.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129371387","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: 9
Radiation efficiency measurement of a balanced miniature IFA-inspired circular antenna using a differential Wheeler cap setup 采用差分惠勒帽装置的平衡微型ifa启发圆形天线的辐射效率测量
2016 International Workshop on Antenna Technology (iWAT) Pub Date : 2016-02-01 DOI: 10.1109/IWAT.2016.7434802
F. Sarrazin, S. Pflaum, C. Delaveaud
{"title":"Radiation efficiency measurement of a balanced miniature IFA-inspired circular antenna using a differential Wheeler cap setup","authors":"F. Sarrazin, S. Pflaum, C. Delaveaud","doi":"10.1109/IWAT.2016.7434802","DOIUrl":"https://doi.org/10.1109/IWAT.2016.7434802","url":null,"abstract":"This paper presents the radiation efficiency measurement of a novel balanced miniature IFA-inspired circularly folded antenna whose maximum dimension is λ/14 at 433 MHz. The measurement is performed using a Wheeler cap (WCap) and a differential measurement setup using two feeding coaxial cables. Original narrowband WCap method is compared to the Ultra Wide Band (UWB) WCap approach. The accuracy of the measurement is discussed and additional simulations are performed to understand the overestimated results measured by the WCap method.","PeriodicalId":228233,"journal":{"name":"2016 International Workshop on Antenna Technology (iWAT)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122543479","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
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