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2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)最新文献

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A spiral antenna above a hybrid HIS-EBG reflector 螺旋天线上方的混合HIS-EBG反射器
2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI: 10.1109/APWC.2016.7738158
M. Tanabe
{"title":"A spiral antenna above a hybrid HIS-EBG reflector","authors":"M. Tanabe","doi":"10.1109/APWC.2016.7738158","DOIUrl":"https://doi.org/10.1109/APWC.2016.7738158","url":null,"abstract":"This paper discusses antenna characteristics of a two-arm Archimedean spiral antenna above a hybrid HIS-EBG reflector. The hybrid reflector consists of an HIS and an EBG, where the HIS is located over an EBG reflector. The analysis is performed with a spiral antenna backed by a conducting plane (PEC) reflector and an HIS reflector, both with the equal total antenna height. It is shown that the HIS reflector contributes to improve the input impedance and axial ratio. Subsequently, antenna characteristics are analyzed for a spiral antenna above the hybrid HIS-EBG reflector. This revealed that the hybrid HIS-EBG is more effective configuration in improving the input impedance and axial ratio than the HIS configuration.","PeriodicalId":143796,"journal":{"name":"2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129309952","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
Joint probability distribution of power delay profiles based on 28 GHz channel measurements 基于28ghz信道测量的功率延迟分布联合概率分布
2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI: 10.1109/APWC.2016.7738153
Kyung‐Won Kim, Myung-Don Kim, Jae‐Joon Park, Juyul Lee, Jinyi Liang, Bonghyuk Park
{"title":"Joint probability distribution of power delay profiles based on 28 GHz channel measurements","authors":"Kyung‐Won Kim, Myung-Don Kim, Jae‐Joon Park, Juyul Lee, Jinyi Liang, Bonghyuk Park","doi":"10.1109/APWC.2016.7738153","DOIUrl":"https://doi.org/10.1109/APWC.2016.7738153","url":null,"abstract":"Millimeter-wave has come into the spot-light as the frequency band of the next generation communication systems. Prior to millimeter-wave communication system designs, the study of propagation characteristics is necessary. Especially, the power delay profile is one of the most important characteristics of channel fading that can be utilized for determining symbol duration. For the reason, we analyzed the root mean square (RMS) delay spread from measurements and the joint distribution of power delay profiles based on the modified Suzuki model. We found that the standard deviation of multi-path power distribution is highly correlated to the mean of the power distribution.","PeriodicalId":143796,"journal":{"name":"2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126447218","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
Diamond array of diamond elements 钻石元素的钻石数组
2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI: 10.1109/APWC.2016.7738103
T. Kawano, H. Nakano
{"title":"Diamond array of diamond elements","authors":"T. Kawano, H. Nakano","doi":"10.1109/APWC.2016.7738103","DOIUrl":"https://doi.org/10.1109/APWC.2016.7738103","url":null,"abstract":"The radiation characteristics of a diamond array (DA) of diamond elements are calculated using the method of moments. It is found that the maximum gain for the DA is higher than that for a conventional grid array antenna (GAA). It is also found that the frequency bandwidth of the gain for the DA is slightly narrower than that for the conventional GAA.","PeriodicalId":143796,"journal":{"name":"2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129730224","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
Design of low-profile broadband dual-polarized integrated patch sub-array for X-band SAR payload on small satellite 小卫星x波段SAR载荷低轮廓宽带双极化集成贴片子阵设计
2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI: 10.1109/APWC.2016.7738109
X. Zhao, B. Tian, S. Yeo, L. Ong
{"title":"Design of low-profile broadband dual-polarized integrated patch sub-array for X-band SAR payload on small satellite","authors":"X. Zhao, B. Tian, S. Yeo, L. Ong","doi":"10.1109/APWC.2016.7738109","DOIUrl":"https://doi.org/10.1109/APWC.2016.7738109","url":null,"abstract":"A practical low-profile broadband dual-polarized patch sub-array is designed for highly integrated X-band SAR payload on small satellite with enhanced isolation, suppressed cross-polarization and reduced side-lobe level. The proposed sub-array is lightweight with low profile (due to its tile structure realized by multi-layer PCB process). The proposed sub-array has 14-dB operating bandwidths of 0.7 GHz for both H- and V-pol radiations with isolation above 40 dB. It achieves the realized gain of 15 dBi. The side lobe levels are below -20 dB. The cross-to-co polarization ratios are lower than -40 dB at the bore-sight maximum-gain direction.","PeriodicalId":143796,"journal":{"name":"2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130944527","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: 3
A survey of different techniques of determining the refractive parameters 测定折射参数的几种方法综述
2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI: 10.1109/APWC.2016.7738176
A. Ullah, S. Rehman, N. Mufti
{"title":"A survey of different techniques of determining the refractive parameters","authors":"A. Ullah, S. Rehman, N. Mufti","doi":"10.1109/APWC.2016.7738176","DOIUrl":"https://doi.org/10.1109/APWC.2016.7738176","url":null,"abstract":"Refraction over the troposphere is one of the key propagation phenomena of wireless radio signals. Different types of refraction prevail in the atmosphere, due to its non-homogeneous nature. The variation in refractive behavior of the wireless radio signal is primarily influenced by change in meteorological conditions, which vary with geographical coordinates, height and time of day/year. One basic parameter is refractivity, from which other factors like effective earth radius factor, refractivity gradient in lowest 100m and 65m of atmosphere, sea level surface refractivity and others can be derived. There can be three main techniques of determining the values of refractivity; One is by the use of radiosonde, second is using a refractometer and the third technique is using different weather stations. This study performs a survey of these techniques, highlighting their pros and cons. The study concludes with a case study of parameters determined using the different techniques, and compares their results. This will aid in communication link planning and propagation modeling.","PeriodicalId":143796,"journal":{"name":"2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131910284","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
Design of a low SAR multiband antenna for mobile applications 用于移动应用的低SAR多波段天线的设计
2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI: 10.1109/APWC.2016.7738115
Y. Koga, M. Kai, K. Fujieda, Hiroyuki Egawa
{"title":"Design of a low SAR multiband antenna for mobile applications","authors":"Y. Koga, M. Kai, K. Fujieda, Hiroyuki Egawa","doi":"10.1109/APWC.2016.7738115","DOIUrl":"https://doi.org/10.1109/APWC.2016.7738115","url":null,"abstract":"We propose a novel low specific absorption rate (SAR) multiband antenna for mobile applications. Our proposed antenna's configuration consists of an antenna ground slit and branched elements to obtain multiband characteristics and low SAR. The proposed antenna covers Long Term Evolution and Wireless Wide Area Networks (703 - 960 MHz, 1447 - 1510 MHz, 1710 - 2170 MHz, and 2496 - 2690 MHz) and can reduce the SAR by at most 45 % compared with a traditional inverted-L antenna. The measured total efficiency of our proposed antenna has been found to vary between -5 dB and -1 dB for target band frequencies. The proposed antenna will be a good candidate for mobile applications with the LTE/WWAN operation.","PeriodicalId":143796,"journal":{"name":"2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124942114","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
Validation of an indoor ray launching RF propagation model 室内射线发射射频传播模型的验证
2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI: 10.1109/APWC.2016.7738122
B. Bellekens, R. Penne, M. Weyn
{"title":"Validation of an indoor ray launching RF propagation model","authors":"B. Bellekens, R. Penne, M. Weyn","doi":"10.1109/APWC.2016.7738122","DOIUrl":"https://doi.org/10.1109/APWC.2016.7738122","url":null,"abstract":"This paper provides the validation of an indoor ray launching propagation model for sub-1GHz frequencies. The propagation model utilises a real environment, that is being captured using a robot and a SLAM approach, in order to compute the electrical field strength. The validation approach uses the received power of 96 individual links, measured by 16 receiver locations and 6 transmitter locations, in order to compare the squared difference between the simulated ones. This results in a global accuracy of 2.8 dB and a global precision of 7.8 dB. The used simulation resolution that was used, was 23.4 cm by 7.8 cm.","PeriodicalId":143796,"journal":{"name":"2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130223693","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
A new RF rectifier topology with enhanced operable power range 一种新的射频整流器拓扑结构，增强了可操作功率范围
2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI: 10.1109/APWC.2016.7738124
M. Abdallah, J. Costantine, A. Ramadan, Y. Tawk, C. Christodoulou
{"title":"A new RF rectifier topology with enhanced operable power range","authors":"M. Abdallah, J. Costantine, A. Ramadan, Y. Tawk, C. Christodoulou","doi":"10.1109/APWC.2016.7738124","DOIUrl":"https://doi.org/10.1109/APWC.2016.7738124","url":null,"abstract":"In this paper, a new reliable radio frequency (RF) rectifier topology with an enhanced operating power range is proposed. The presented RF harvester possesses an efficient RF to DC conversion ratio over an enhanced power range. A typical RF rectifier is initially optimized, and then the RF input is equally split into two branches. Splitting the input RF power improved the reliability and breakdown performance of the rectifier. This has the effect of increasing the power rectification range by approximately a factor of three. The design presented herein aims at avoiding any efficiency degradation in scenarios, where the RF power fed into a typical harvesting circuit varies. The proposed rectifier circuit is fabricated and the measured results show good agreement with simulated data.","PeriodicalId":143796,"journal":{"name":"2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123234292","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 square patch antenna loaded with wrench-shaped tuning rings for CNSS applications with GPS 装有扳手形调谐环的方形贴片天线，用于GPS的CNSS应用
2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI: 10.1109/APWC.2016.7738134
J. H. Zhou, L. P. Yang, B. You, M. Dong, J. Li, W. Quan
{"title":"A square patch antenna loaded with wrench-shaped tuning rings for CNSS applications with GPS","authors":"J. H. Zhou, L. P. Yang, B. You, M. Dong, J. Li, W. Quan","doi":"10.1109/APWC.2016.7738134","DOIUrl":"https://doi.org/10.1109/APWC.2016.7738134","url":null,"abstract":"For CNSS applications, this letter presents a square patch antenna loaded with a pair of wrench-shaped tuning rings on the diagonal position. The loaded tuning ring, which can apparently enhance the bandwidth and gain of the proposed antenna by adjusting orthogonal radiation arrays, consists of a triangle corner cut, a rectangular arm slot and a C-shaped groove. The simulation of the designed antenna and the measurement of the fabricated prototype, based on a dielectric substrate with thickness of 3.0 mm, relative permittivity of 3.0, is in good agreement. The results show that the bandwidth reaches 63 MHz at 1.616 GHz, and the enhancement of the bandwidth by 110% contrasted to that of normal patch antennas assures CNSS applications compatible with GPS.","PeriodicalId":143796,"journal":{"name":"2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115466797","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
Wind turbine blade deflection sensing system based on UWB technology 基于超宽带技术的风力机叶片偏转传感系统
2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI: 10.1109/APWC.2016.7738172
O. Franek, Shuai Zhang, T. L. Jensen, P. C. F. Eggeijs, K. Olesen, Claus Byskov, G. F. Pedersen
{"title":"Wind turbine blade deflection sensing system based on UWB technology","authors":"O. Franek, Shuai Zhang, T. L. Jensen, P. C. F. Eggeijs, K. Olesen, Claus Byskov, G. F. Pedersen","doi":"10.1109/APWC.2016.7738172","DOIUrl":"https://doi.org/10.1109/APWC.2016.7738172","url":null,"abstract":"A microwave sensing system for estimating deflection of a wind turbine blade is presented. The system measures distances at mo ultrawideband (UWB) wireless links between one antenna at the tip and two antennas at the root of the blade, which allows for determination of the tip position by triangulation. An experimental setup with corner reflector antenna mounted at the tip and horn antennas at the root of a 37.3 m long blade is described. Analyzing the data from the experiment, special attention is given to the propagation aspects of the VWB links, with focus on the multipath effects caused by the blade. It is demonstrated that despite the adverse effects of the multipath propagation the ranging accuracy of the system amounts to 1.5 cm, leading to maximum error of deflection 4.5 %.","PeriodicalId":143796,"journal":{"name":"2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131604282","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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