发布求助
文献互助 智能选刊 最新文献

2021 International Symposium on Antennas and Propagation (ISAP)最新文献

筛选
英文 中文
New Microwave Generator for 28 GHz band of 5G mobile communication using an Optical High-order Harmonic Generation for LiNbO3 Optical Intensity Modulator 基于LiNbO3光强调制器光高次谐波产生的新型5G移动通信28ghz频段微波发生器
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614555
S. Kurokawa, M. Ameya, M. Hirose
{"title":"New Microwave Generator for 28 GHz band of 5G mobile communication using an Optical High-order Harmonic Generation for LiNbO3 Optical Intensity Modulator","authors":"S. Kurokawa, M. Ameya, M. Hirose","doi":"10.23919/ISAP47258.2021.9614555","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614555","url":null,"abstract":"We have newly developed a microwave signal generator for the 28 GHz band of 5G mobile communication using an optical high-order harmonic microwave generation technique. Our developed generator consists of a DFB laser diode, a LiNbO3 Mach-Zehnder optical intensity modulator, a signal generator from 13 GHz to 15 GHz, and a photo diode. In the case of the input frequency range from 13 GHz to 15 GHz to the LiNbO3 intensity modulator, we can generate microwave signal from 26 GHz to 30 GHz with an output level of more than -6.3 dBm that is large than 13 dB from our previous generator.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131701444","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
Measurement of Rice factor for In-Body Radios at 950 MHz in Indoor Environment 室内环境下950mhz射频的米系数测量
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614584
Ryushun Oka, Kun Li, K. Honda
{"title":"Measurement of Rice factor for In-Body Radios at 950 MHz in Indoor Environment","authors":"Ryushun Oka, Kun Li, K. Honda","doi":"10.23919/ISAP47258.2021.9614584","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614584","url":null,"abstract":"This paper presents a preliminary investigation of the Rice factor (K-factor) for a medical in-body wireless channel at 950 MHz. A propagation measurement of the K-factor was conducted in an indoor environment by moving a cylinder phantom filled with salt water with a vertical dipole inside the phantom as transmitting side and an antenna mounted on the phantom surface as receiving side. It is revealed that the K-factor changes mainly due to the variations in the relative internal and external antenna positions, where the dependence on antenna types and polarization properties is relatively not remarkable.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131183383","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
Multiband Antenna for Multi-source Ambient RF Energy Harvesting System 多源环境射频能量采集系统的多波段天线
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614630
A. Le, Dai Duong Nguyen, M. Le
{"title":"Multiband Antenna for Multi-source Ambient RF Energy Harvesting System","authors":"A. Le, Dai Duong Nguyen, M. Le","doi":"10.23919/ISAP47258.2021.9614630","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614630","url":null,"abstract":"In this work, we introduced a small size, multiband antenna for an ambient RF energy harvesting system. The antenna operates in most of the available frequencies in the environment, namely GSM900, GSM1800, UMTS2100 and LTE2600. The antenna is formed by an inner and an outer ring, each corresponds to two resonance frequencies. By analyzing the electric field distribution on the antenna and locating the right parameters for tuning, desired operating frequencies are obtained. With an omnidirectional radiation pattern, high efficiency and multiband coverage, the proposed antenna is suitable for ambient RF energy harvesting system.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130940149","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
Simulation Design of Cavity-Backed Self-Phased Polarization-Reconfigurable Antenna Based on Liquid Metal 基于液态金属的腔背自相极化可重构天线仿真设计
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614360
Yuwei Zhang, Shu Lin, Q. Ding, Jiaxuan Li, Xingqi Zhang
{"title":"Simulation Design of Cavity-Backed Self-Phased Polarization-Reconfigurable Antenna Based on Liquid Metal","authors":"Yuwei Zhang, Shu Lin, Q. Ding, Jiaxuan Li, Xingqi Zhang","doi":"10.23919/ISAP47258.2021.9614360","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614360","url":null,"abstract":"In this paper, a cavity-backed self-phased polarization-reconfigurable antenna based on liquid metal is proposed. The main radiator of the antenna is composed of two orthogonal dipoles. The surfaces of the dipoles’ arms are loaded with four microfluidic channels filled with movable liquid metal posts. By moving the liquid posts, the equivalent lengths of the dipoles can be altered, leading to changes in the self-phases of the two orthogonal dipoles. Thus, the polarization of the antenna can be adjusted. Moreover, this antenna employs a cavity-backed reflector, which can achieve unidirectional radiation. The simulated results achieved by CST Microwave Studio® indicate that the polarization of the antenna can be switched between linear and circular polarizations. The operating bandwidth of the antenna is from 0.72 to 0.77 GHz. The peak gain of the antenna can reach 10.6 dBi.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131192365","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 Non-invasively Active Patch Antenna Integrated with Microwave Radiometer for Subcutaneous Temperature Measurement 集成微波辐射计的无创有源贴片天线皮下温度测量设计
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614465
Bing-Chao Huang, Yu-Jen Chi, M. Raveendra, C. Chiu
{"title":"Design of Non-invasively Active Patch Antenna Integrated with Microwave Radiometer for Subcutaneous Temperature Measurement","authors":"Bing-Chao Huang, Yu-Jen Chi, M. Raveendra, C. Chiu","doi":"10.23919/ISAP47258.2021.9614465","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614465","url":null,"abstract":"The paper aims at designing a radiometric thermometer for noninvasively measuring the internal body temperature. The radiometric thermometer consists of an active near-field probe and a radiometer designed in the 1.575 GHz band. The active probe integrated with a LNA is a circular patch antenna with short-pin loading and superstrate to collect the black body radiation under the superficial tissue. The Dicke radiometer was constructed and the probe antenna attached to a phantom was designed and implemented to test. The phantom based on Agar material was developed to emulate the real tissue of skin and muscle for experiments. The radiometer has a system gain of 50 dB, NF of 1.738 dB, 3 dB bandwidth of 90 MHz. The active probe has a noise figure of 1.1 dB and a gain of 13 dB at 1.575 GHz. The transferring rate of the power detector can achieve about 75 mv/dB. The measured DC voltage by the microwave radiometer is 2.676 V as attaching the cold saline water of 25 °C, while the voltage is 2.747 V as attaching to the hot water of 80 °C in the chamber.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132097436","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 Broadband 8-Antenna Array Design for 5G MIMO Smartphone Applications 面向5G MIMO智能手机应用的宽带8天线阵列设计
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614566
J. Kulkarni, Jiaying Chen, Tong Zhang, C. Sim
{"title":"A Broadband 8-Antenna Array Design for 5G MIMO Smartphone Applications","authors":"J. Kulkarni, Jiaying Chen, Tong Zhang, C. Sim","doi":"10.23919/ISAP47258.2021.9614566","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614566","url":null,"abstract":"An 8-antenna broadband MIMO array design for the fifth-generation (5G) smartphone application is proposed. The proposed antenna element has a small size of 33×5.5 mm2, and it is composed of a feeding structure and a pair asymmetric grounded element. This proposed 8-antenna MIMO array can completely cover the 5G New Radio Band n77/n78 (3.3–4.2 GHz), and good isolation of better than 11 dB is realized between any two adjacent antenna elements across the bands of interest. The overall size of the 8-antenna design is 136×75×6 mm3. The detailed design method and results of the proposed antenna will be explicitly explained.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132682451","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
Influence of Mutual Coupling and Surrounding Objects on Base Station Antennas in ITS ITS中相互耦合和周围物体对基站天线的影响
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614438
Kaito Nishimura, M. Fujimoto, K. Kawai, Toshinori Iinuma
{"title":"Influence of Mutual Coupling and Surrounding Objects on Base Station Antennas in ITS","authors":"Kaito Nishimura, M. Fujimoto, K. Kawai, Toshinori Iinuma","doi":"10.23919/ISAP47258.2021.9614438","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614438","url":null,"abstract":"Adaptive arrays which reduce interference are being considered ITS (Intelligent Transport Systems) base stations to realize automatic driving and safe driving support [1]. However, adaptive pattern control capability of the system may be degraded due to the mutual coupling between elements and the influence of surrounding objects. In this paper, the effects of mutual coupling between elements and surrounding objects on the adaptive arrays are clarified, and the appropriate base station antenna configuration is investigated. As a result of analysis, it is confirmed that the effect of mutual coupling between elements on the adaptive arrays is small. It is also confirmed that the distance, position, and size of the surrounding objects had a significant effect on the adaptive array. Based on the results of the analysis, an appropriate antenna configuration for the base station is proposed.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115435730","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
Metal-only Reflecting Luneburg Lens Design for Sub-THz Applications 用于次太赫兹应用的纯金属反射Luneburg透镜设计
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614591
C. Bilitos, J. Ruiz-García, R. Sauleau, E. Martini, S. Maci, D. González-Ovejero
{"title":"Metal-only Reflecting Luneburg Lens Design for Sub-THz Applications","authors":"C. Bilitos, J. Ruiz-García, R. Sauleau, E. Martini, S. Maci, D. González-Ovejero","doi":"10.23919/ISAP47258.2021.9614591","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614591","url":null,"abstract":"This paper presents a metasurface (MTS) beam-former based on Reflecting Luneburg Lenses (RLLs) operating in the sub-THz range. RLLs consist of two circular parallel plate waveguides (PPWs) vertically stacked. The bottom wall of the lower PPW is loaded with a MTS with an axially symmetric modulation. The wave launched by a primary feed in the bottom PPW is collimated in the top one, so that a plane wave is identically generated for any azimuthal position of the source. The proposed solution uses a bed of nails, well-suited to fabrication by Si micromachining, to implement the RLL refractive index profile. Simulation results yield a 30% -3dB directivity bandwidth around the center frequency (280 GHz). This device can be used as a beam-former for multi-beam antennas for Earth observation or for front- and back-hauling in beyond 5G wireless.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115732637","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 Switchable Linear to Circular Polarization Converter Using PIN Diodes 使用PIN二极管的可切换线性到圆极化转换器
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614509
Reda Madi, A. Clemente, R. Sauleau
{"title":"A Switchable Linear to Circular Polarization Converter Using PIN Diodes","authors":"Reda Madi, A. Clemente, R. Sauleau","doi":"10.23919/ISAP47258.2021.9614509","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614509","url":null,"abstract":"In this paper, we present a method to design a switchable polarizer using p-i-n diodes. An antenna-filter-antenna architecture with four metal layers (receiving and transmitting radiating elements, ground plane, and bias lines) is implemented to convert an impinging linearly-polarized electromagnetic wave to a circularly-polarized one. Furthermore, by controlling opportunely the bias current flowing on the two pi-n diodes flip chipped on the transmitting radiating element, the transmission wave can be switched to either left-handed circular polarization (LHCP) or right-handed circular polarization (RHCP). Full-wave electromagnetic simulations of a single element show a transmission loss < 0.8 dB for both polarization (LHCP/RHCP) and 180° phase difference in the frequency band (27 - 31 GHz).","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116923860","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
Metamaterial Minkowski Fractal Antenna With Defective Ground Structure 具有缺陷接地结构的超材料Minkowski分形天线
2021 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2021-10-19 DOI: 10.23919/ISAP47258.2021.9614583
A. K. Vallappil, M. Rahim, B. A. Khawaja, N. Murad
{"title":"Metamaterial Minkowski Fractal Antenna With Defective Ground Structure","authors":"A. K. Vallappil, M. Rahim, B. A. Khawaja, N. Murad","doi":"10.23919/ISAP47258.2021.9614583","DOIUrl":"https://doi.org/10.23919/ISAP47258.2021.9614583","url":null,"abstract":"This paper explores two metamaterial fractal antenna (MFA), in which one has complete ground plane and other uses defective ground structure (DGS) with square split ring resonator (SSR) are designed for 5G applications. The radiating layer of both antennas based on first iteration of minkowski fractal structure with complimentary split ring resonator (CSSR). The proposed antennas are simulated using CST microwave studio. The MFA with complete ground plane/DGS is operating between 3.48GHz-3.52GHz and 3.3GHz-3.7GHz, respectively. Both antennas show an excellent gain of 5.1dB and 4.5dB, respectively. The results show that MFA with DGS structure has an excellent bandwidth improvement with good gain, which can be an ideal candidate for 5G application.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124091307","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信