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2019 IEEE Conference on Antenna Measurements & Applications (CAMA)最新文献

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Time-domain Analysis of Microwave Guided-Modes Propagating along FRPM Pipe Wall for Infrastructure Inspection 基础设施检测中FRPM管壁微波导模传播的时域分析
2019 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959561
S. Matsukawa, Kosuke Yoshida, T. Okuda, M. Hazama, S. Kurokawa, H. Murata
{"title":"Time-domain Analysis of Microwave Guided-Modes Propagating along FRPM Pipe Wall for Infrastructure Inspection","authors":"S. Matsukawa, Kosuke Yoshida, T. Okuda, M. Hazama, S. Kurokawa, H. Murata","doi":"10.1109/CAMA47423.2019.8959561","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959561","url":null,"abstract":"We have proposed a new nondestructive inspection technique for underground FRPM pipelines by using microwave guided-modes propagating along the pipe wall. Further, we have been investigating a method for estimating the position of a foreign object using measurement results and simulation results. In this paper, as a first step in constructing the estimation method of it, time-domain analyses of measured and simulated microwave signals are discussed. In addition, we investigate a detail of the transmission characteristic of the microwaves propagating along the FRPM pipe wall. The time-domain responses of the simulated microwave signals by using a theoretical equation based on a FRPM slab guide model were in good agreement with that of the measured results. Thereby, we found that the microwaves propagating along the FRPM pipe wall can be represented with the theoretical equation based on the propagating model along the FRPM slab with periodic boundary condition corresponding to the expanded pipe wall. The time-domain analysis of the microwave guided-modes enables us to have easy-to-use inspection methods for various buried pipelines.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"27 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130646864","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
Wideband (22-30GHz) mm-Wave Substrate Integrated Waveguide (SIW) Antenna for 5G Applications 用于5G应用的宽带(22-30GHz)毫米波基板集成波导(SIW)天线
2019 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959544
N. Al-Fadhali, H. Majid, R. Omar, M. Rahim, S. M. Shah, B. Esmail
{"title":"Wideband (22-30GHz) mm-Wave Substrate Integrated Waveguide (SIW) Antenna for 5G Applications","authors":"N. Al-Fadhali, H. Majid, R. Omar, M. Rahim, S. M. Shah, B. Esmail","doi":"10.1109/CAMA47423.2019.8959544","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959544","url":null,"abstract":"In this paper, the SIW cavity slots antenna wideband millimeter-wave is proposed for fifth generation (5G) communication. The antenna also shows an average gain of 8,574 dBi, 20 × 20 mm2 compact. The proposed antenna applies to 5G application at 28 GHz operating frequency. The simulated results show that the SIW antenna resonates throughout the 22 GHz to 30 GHz bands to cover all applications within this range. The coefficients of reflection in all ranges from 22 GHz to 30 GHz are below 10 dB. At 28 Ghz, high efficiency and outstanding gain of the antenna is achieved.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126267246","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: 6
Impact of Terminal Polarization in a Urban Channel for LP-WAN Application 城市信道终端极化对LP-WAN应用的影响
2019 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959670
F. Ferrero, Le Ouoc Huy, M. Loupias
{"title":"Impact of Terminal Polarization in a Urban Channel for LP-WAN Application","authors":"F. Ferrero, Le Ouoc Huy, M. Loupias","doi":"10.1109/CAMA47423.2019.8959670","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959670","url":null,"abstract":"In this study, the performance of a wireless communication based on low-power LoRa technology at 868MHz is evaluated in a urban environment. The installation of the vertical polarized gateway and the miniature terminal used for measurement is described for a typical smart city application. Performance in term of received signal and Signal to Noise Ratio (SNR) is given for different communication range and demonstrate a robust communication up to 7km. The influence of the terminal orientation on the transmission quality is evaluated in a real environment. Measurement confirms that the vertical polarization is providing superior SNR for low signal level.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114756867","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
Performance Degradation Investigations of Helicopter Forward-Looking 76 GHz Millimeter-Wave Radar Due to Radome 雷达罩对直升机前视76 GHz毫米波雷达性能的影响研究
2019 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959679
S. Futatsumori, Norihiko Miyazaki
{"title":"Performance Degradation Investigations of Helicopter Forward-Looking 76 GHz Millimeter-Wave Radar Due to Radome","authors":"S. Futatsumori, Norihiko Miyazaki","doi":"10.1109/CAMA47423.2019.8959679","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959679","url":null,"abstract":"Obstacles such as high-voltage power lines and surrounding objects cannot be easily recognized by helicopter pilots under certain conditions. Systems to support pilots for obstacle detection have been recently developed, and they include the millimeter-wave radar as the primary sensor device. In this study, the performance degradation of a helicopter forward-looking 76 GHz millimeter-wave radar of a due to its radome is experimentally investigated. Issues due to the reflection from the radome surface are analyzed. Ground test results indicated that the conventional radome structure increases the noise floor by more than 20 dB. Such degradation can be improved using the proposed radome structure.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123896774","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 Truncated Microstrip Antenna with Array 4×2 for Microwave Radio Communication 用于微波无线电通信的4×2阵截断微带天线设计
2019 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959571
S. Alam, I. Surjati, Y. K. Ningsih, L. Sari, Elfi Syukriati, Aida Safitri
{"title":"Design of Truncated Microstrip Antenna with Array 4×2 for Microwave Radio Communication","authors":"S. Alam, I. Surjati, Y. K. Ningsih, L. Sari, Elfi Syukriati, Aida Safitri","doi":"10.1109/CAMA47423.2019.8959571","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959571","url":null,"abstract":"Wireless communication systems especially radio microwaves communication need a device that functions as a signal transmitter and receiver where the final device for these processes is an antenna. This paper proposes the design of a circular polarization microstrip antenna for microwave radio communication with range frequency of 10750–10950 MHz. Circular polarization with axial ratio ≤ 3 dB is obtained by using a truncated corner technique, whereas to increase bandwidth an array method with 4×2 elements is used. The type of substrate used is Arlon LX 217 with εr of 2.2, thickness (h) of 0.587 mm and loss tangent (tan a) 0.0009. From the simulation results of proposed antenna obtained bandwidth impedance with return loss ≤ −10 dB and VSWR ≤ 2 is 1449 MHz with a frequency range 10511–11960 MHz. Furthermore, the axial ratio of the proposed antenna is 1.468 dB while gain is 10.56 dB at working frequency of 10850 MHz. From the results obtained it can be concluded that the proposed antenna is suitable for microwave radio communication.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122125246","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: 6
60GHz Substrate Integrated Waveguide Balun 60GHz衬底集成波导Balun
2019 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959625
Yu Min Kim, K. H. Ha, J. Lee, H. Kang, Il Ho Jung, C. Cho
{"title":"60GHz Substrate Integrated Waveguide Balun","authors":"Yu Min Kim, K. H. Ha, J. Lee, H. Kang, Il Ho Jung, C. Cho","doi":"10.1109/CAMA47423.2019.8959625","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959625","url":null,"abstract":"In this paper, we design a balun that operates at 60GHz. The proposed balun is based on a substrate integrated waveguide (SIW) structure that can reduce losses in high frequency bands. A single-ended signal is divided by 3-dB power divider, and then differential signals are generated by inverting the phase. In simulation, the amplitudes of differential signals are −5.2dB and −5.18dB, respectively, which are smaller than the goal of −3dB. This is due to the high insertion loss of the transition region. The phase difference between two balanced ports is almost 180 degrees. This result can be achieved from 57GHz to 62GHz.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117096696","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
Noise Parameter Measurement and Its Application in Receiving Phased Arrays for Low-Frequency Radio Astronomy 低频射电天文接收相控阵噪声参数测量及其应用
2019 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959782
A. Sutinjo, D. Ung
{"title":"Noise Parameter Measurement and Its Application in Receiving Phased Arrays for Low-Frequency Radio Astronomy","authors":"A. Sutinjo, D. Ung","doi":"10.1109/CAMA47423.2019.8959782","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959782","url":null,"abstract":"The noise temperature of a phased array is a function the noise parameters of the low-noise amplifiers connected to the antenna elements. However, noise parameters at low-frequency radio astronomy bands (below few hundred MHz) are not usually readily available. We discuss the significance of noise parameters in phased arrays and demonstrate a low-cost option for noise parameter extraction.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121356116","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
A Small Monocone Antenna with PIFA Structure PIFA结构的小型单锥天线
2019 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959542
K. Matsubayashi, N. Michishita, H. Morishita
{"title":"A Small Monocone Antenna with PIFA Structure","authors":"K. Matsubayashi, N. Michishita, H. Morishita","doi":"10.1109/CAMA47423.2019.8959542","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959542","url":null,"abstract":"A low-profile monocone antenna by using planar inverted-F antenna (PIFA) structure has been reported. In this paper, the characteristics of the monocone antenna with PIFA structure at the high frequencies are analyzed by simulation. As a result, the characteristics of the proposed antenna at the high frequencies are described in detail.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121418982","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 a Wide Band Mierostrip Line Fed Antenna for TCAS A vionie System 用于TCAS a视讯系统的宽带微带馈电天线设计
2019 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959653
Moustafa Samy Abdelsadek, A. Allam, D. Fawzy
{"title":"Design a Wide Band Mierostrip Line Fed Antenna for TCAS A vionie System","authors":"Moustafa Samy Abdelsadek, A. Allam, D. Fawzy","doi":"10.1109/CAMA47423.2019.8959653","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959653","url":null,"abstract":"This paper presents the design and fabrication of a directional antenna for the Traffic alert and Collision Avoidance Avionic System (TCAS). A patch antenna in a circular shape made from copper. Roger 5880 with h=3.18 mm; εr=2.2, and loss tangent of 0.0009 is taken as a substrate material. It is fed using a microstrip line of 50 ohm. It operates at the targeted frequencies. Defected ground technique is used to increase the antenna bandwidth. A conducting plane supports the antenna structure at an optimized distance to achieve high gain. The proposed antenna conducts with parameters that satisfy the conventional TCAS II directional antenna radiation parameters except with higher gain which tends to 5.15 dB and 5.6 dB in the transmission and reception respectively that increase the range of he surveillance area. Low side lobe level and an efficient beamwidth are archived for bearing angle calculation efficiency and to cover the full 360° respectively.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115968097","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
Concrete Thickness Measurement Model for GPR 探地雷达混凝土厚度测量模型
2019 IEEE Conference on Antenna Measurements & Applications (CAMA) Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959534
Erfansyah Ali, A. A. Pramudita, D. Arseno
{"title":"Concrete Thickness Measurement Model for GPR","authors":"Erfansyah Ali, A. A. Pramudita, D. Arseno","doi":"10.1109/CAMA47423.2019.8959534","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959534","url":null,"abstract":"The data processing of concrete thickness inspection frequently has unknown electrical properties of the concretes or it varies over the observation. This paper proposes measurement model for concrete thickness by using GPR which permittivity is estimated from obtained GPR data and then it is used to interpret the layer thickness. Experimental investigation was performed by modeling the GPR system using VNA. The proposed measurement model utilizes surface reflection information to estimate the relative permittivity of the concrete. To ensure that the surface reflection signal is well recognized, the antenna is placed on a concrete surface with a certain elevation. The laboratory experiment results show that the proposed measurement model is able to estimate the thickness of the concrete with good results.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126622670","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
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