Pub Date : 2019-10-01DOI: 10.1109/CAMA47423.2019.8959591
Intan Nurfitri, C. Apriono
Cancer is one of the leading causes of death around the world due to lack of early detection. Imaging systems are necessary to prevent and reduce the problem. Various imaging systems still have an issue in safety due to radiation effects for the human body. One of imaging technology that can be used to overcome the shortage of existing technologies is Terahertz imaging techniques. Terahertz imaging can be more effective in diagnosing cancer for soft tissue because it can provide spatial and spectral information simultaneously. Therefore, proper antenna design is needed to get the desired image quality. This paper study the effects of an antenna radiation beamwidth to provide cancer imaging. The method used in this simulation is the translation scanning method with transmitter and receiver antenna at a distance of 7.5 mm. The Terahertz imaging results with narrower beamwidth produce a better image as expected to enhance Terahertz imaging quality.
{"title":"Radiation Beamwidth Characterization to Enhance Terahertz Imaging Quality for Cancer Detection","authors":"Intan Nurfitri, C. Apriono","doi":"10.1109/CAMA47423.2019.8959591","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959591","url":null,"abstract":"Cancer is one of the leading causes of death around the world due to lack of early detection. Imaging systems are necessary to prevent and reduce the problem. Various imaging systems still have an issue in safety due to radiation effects for the human body. One of imaging technology that can be used to overcome the shortage of existing technologies is Terahertz imaging techniques. Terahertz imaging can be more effective in diagnosing cancer for soft tissue because it can provide spatial and spectral information simultaneously. Therefore, proper antenna design is needed to get the desired image quality. This paper study the effects of an antenna radiation beamwidth to provide cancer imaging. The method used in this simulation is the translation scanning method with transmitter and receiver antenna at a distance of 7.5 mm. The Terahertz imaging results with narrower beamwidth produce a better image as expected to enhance Terahertz imaging quality.","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":"128956654","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}
Pub Date : 2019-10-01DOI: 10.1109/CAMA47423.2019.8959657
Koki Watanabe
This paper considers the two-dimensional electromagnetic scattering from strip gratings with period modulation, and shows a spectral-domain technique based on the rigorous coupled wave analysis (RCWA). The RCWA is one of the most commonly used numerical analysis method for the perfectly periodic structures in optics. The present formulation introduces the pseudo-periodic Fourier transform to make the RCWA possible to apply to the problem of imperfectly periodic structure.
{"title":"Study on Spectral-Domain Formulation of Electromagnetic Scattering by Periodic Strip Array with Period Modulation","authors":"Koki Watanabe","doi":"10.1109/CAMA47423.2019.8959657","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959657","url":null,"abstract":"This paper considers the two-dimensional electromagnetic scattering from strip gratings with period modulation, and shows a spectral-domain technique based on the rigorous coupled wave analysis (RCWA). The RCWA is one of the most commonly used numerical analysis method for the perfectly periodic structures in optics. The present formulation introduces the pseudo-periodic Fourier transform to make the RCWA possible to apply to the problem of imperfectly periodic structure.","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":"130265933","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}
Pub Date : 2019-10-01DOI: 10.1109/CAMA47423.2019.8959664
Mohammed Farouk Nakmouche, H. Taher, D. Fawzy, A. Allam
In the current work, a new Wideband Substrate Integrated Waveguide Bandpass Filter (SIW-BPF) is presented. The target is to allow vertical roaming between the X and Ku band applications. As a first step, we performed a parametric study of different etched slot geometries namely, H-Slotted, T-Slotted, and U-Slotted DGS in order to examine the effects of altering different geometrical parameters of the unit on its response. H-Slotted DGS shows the highest FBW with 82.89% on the average compared to other geometries. As a second step, the cell size and the numbers of the H-Slotted DGS were optimized with the use of finite element method with the following constraints taken into consideration: low cost fabrication, high Q-Factor, compact size and easy integration. One of the designs was chosen for fabrication to validate the designed circuit. The measured results show that our optimized filter achieves an insertion loss of 2.01 dB at 8.5 GHz, a return loss higher than 11 dB and fractional bandwidth of 90.87% for a single cell and a fractional bandwidth of 80.05% for multiple cells. The measured results are in good agreement with the simulated results.
{"title":"Development of a Wideband Substrate Integrated Waveguide Bandpass Filter Using H-Slotted DGS","authors":"Mohammed Farouk Nakmouche, H. Taher, D. Fawzy, A. Allam","doi":"10.1109/CAMA47423.2019.8959664","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959664","url":null,"abstract":"In the current work, a new Wideband Substrate Integrated Waveguide Bandpass Filter (SIW-BPF) is presented. The target is to allow vertical roaming between the X and Ku band applications. As a first step, we performed a parametric study of different etched slot geometries namely, H-Slotted, T-Slotted, and U-Slotted DGS in order to examine the effects of altering different geometrical parameters of the unit on its response. H-Slotted DGS shows the highest FBW with 82.89% on the average compared to other geometries. As a second step, the cell size and the numbers of the H-Slotted DGS were optimized with the use of finite element method with the following constraints taken into consideration: low cost fabrication, high Q-Factor, compact size and easy integration. One of the designs was chosen for fabrication to validate the designed circuit. The measured results show that our optimized filter achieves an insertion loss of 2.01 dB at 8.5 GHz, a return loss higher than 11 dB and fractional bandwidth of 90.87% for a single cell and a fractional bandwidth of 80.05% for multiple cells. The measured results are in good agreement with the simulated results.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"59 6 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":"132054471","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}
Pub Date : 2019-10-01DOI: 10.1109/CAMA47423.2019.8959605
A. Firdausi, G. Hakim, Fery A. Kurniawan, Diah Septiyana, M. Alaydrus
Controlling the blood glucose levels are needed to be maintain, this was to ensure the health of human being. The problem to maintain the blood glucose levels is we need to know how much the glucose already in blood. Therefore an equipment to detect blood glucose levels is important. Right now on the market blood glucose levels detection equipment is using a needle to prick the finger to take amount of blood. This is very painful experience for a lot of people; therefore a new method is needed to detecting blood glucose levels without put needle in the finger. In this paper we propose a millimeter wave antenna microstrip for non-invasive blood glucose detection. We successfully detect 50mg/dl glucose-water solution using this new sensor.
{"title":"Development of a Microstrip Antenna for Glucose Detection at Millimeter Waves","authors":"A. Firdausi, G. Hakim, Fery A. Kurniawan, Diah Septiyana, M. Alaydrus","doi":"10.1109/CAMA47423.2019.8959605","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959605","url":null,"abstract":"Controlling the blood glucose levels are needed to be maintain, this was to ensure the health of human being. The problem to maintain the blood glucose levels is we need to know how much the glucose already in blood. Therefore an equipment to detect blood glucose levels is important. Right now on the market blood glucose levels detection equipment is using a needle to prick the finger to take amount of blood. This is very painful experience for a lot of people; therefore a new method is needed to detecting blood glucose levels without put needle in the finger. In this paper we propose a millimeter wave antenna microstrip for non-invasive blood glucose detection. We successfully detect 50mg/dl glucose-water solution using this new sensor.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"67 3 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":"130755277","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}
Pub Date : 2019-10-01DOI: 10.1109/CAMA47423.2019.8959446
K. Gbafa, A. Diallo, P. Le Thuc, R. Staraj
This paper presents a Multiple Input Multiple Output (MIMO) antenna system dedicated to the [3-4] GHz band for 5G Full-Duplex applications. The system is based on the association of 2 transmitting (Tx) patches arrays and 2 receiving (Rx) single patches positioned symmetrically and close to each other to achieve polarization/pattern diversity. Thus, an isolation greater than 30 dB is achieved in the whole band between the Tx and Rx antennas in simulations and measurements. Moreover, a high gain of 6.3 dBi is obtained for the Tx antennas and a total efficiency, greater than 70 %, is provided for both Tx and Rx antennas. These results, especially in terms of isolation, can be added to analog and digital cancellation techniques to satisfy the self-interference challenge of Full-Duplex systems, which is close to 100 dB of self-interference cancellation.
{"title":"High Isolated MIMO Antenna System for Full-Duplex 5G Applications","authors":"K. Gbafa, A. Diallo, P. Le Thuc, R. Staraj","doi":"10.1109/CAMA47423.2019.8959446","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959446","url":null,"abstract":"This paper presents a Multiple Input Multiple Output (MIMO) antenna system dedicated to the [3-4] GHz band for 5G Full-Duplex applications. The system is based on the association of 2 transmitting (Tx) patches arrays and 2 receiving (Rx) single patches positioned symmetrically and close to each other to achieve polarization/pattern diversity. Thus, an isolation greater than 30 dB is achieved in the whole band between the Tx and Rx antennas in simulations and measurements. Moreover, a high gain of 6.3 dBi is obtained for the Tx antennas and a total efficiency, greater than 70 %, is provided for both Tx and Rx antennas. These results, especially in terms of isolation, can be added to analog and digital cancellation techniques to satisfy the self-interference challenge of Full-Duplex systems, which is close to 100 dB of self-interference cancellation.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"43 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":"123724743","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}
Pub Date : 2019-10-01DOI: 10.1109/CAMA47423.2019.8959630
Zhe Chen, H. Wong, Kaixu Wang, Jun Xiang
Two polarization-reconfigurable antennas realized by different liquid solutions are compared in this paper. In these two designs, liquid solutions of dielectric and metal materials were employed, respectively. However, the liquid solutions play different roles according to different design principles. In these two designs, both can reconfigure the polarization between ± 45° states. These two antennas will give full play to their brilliant abilities in wireless communication systems.
{"title":"Polarization-Reconfigurable Antennas with Different Liquid Solutions","authors":"Zhe Chen, H. Wong, Kaixu Wang, Jun Xiang","doi":"10.1109/CAMA47423.2019.8959630","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959630","url":null,"abstract":"Two polarization-reconfigurable antennas realized by different liquid solutions are compared in this paper. In these two designs, liquid solutions of dielectric and metal materials were employed, respectively. However, the liquid solutions play different roles according to different design principles. In these two designs, both can reconfigure the polarization between ± 45° states. These two antennas will give full play to their brilliant abilities in wireless communication systems.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"377 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":"124712416","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}
Pub Date : 2019-10-01DOI: 10.1109/CAMA47423.2019.8959760
F. Ferrero, Mouhamed Bhoye Toure
In this study, a dual-band miniature antenna for LP-WAN covering 433MHz and 868MHZ bands is designed to fit into a 90*30mm terminal. Design methodology based on the use of two lumped components inserted in the radiating element is presented. The optimized antenna is fabricated and assembled with electronic components and battery. A measurement is performed to assess radiation performance in anechoid chamber. The terminal has a total efficiency of −6dB and −4.5dB at respectively 433MHz and 868MHz with a dipolar radiation pattern. The performance of the terminal is evaluated in a real environment and show similar performance at 433MHz and 868MHz.
{"title":"Dual-band LoRa Antenna : Design and Experiments","authors":"F. Ferrero, Mouhamed Bhoye Toure","doi":"10.1109/CAMA47423.2019.8959760","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959760","url":null,"abstract":"In this study, a dual-band miniature antenna for LP-WAN covering 433MHz and 868MHZ bands is designed to fit into a 90*30mm terminal. Design methodology based on the use of two lumped components inserted in the radiating element is presented. The optimized antenna is fabricated and assembled with electronic components and battery. A measurement is performed to assess radiation performance in anechoid chamber. The terminal has a total efficiency of −6dB and −4.5dB at respectively 433MHz and 868MHz with a dipolar radiation pattern. The performance of the terminal is evaluated in a real environment and show similar performance at 433MHz and 868MHz.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"141 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":"116356243","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}
Pub Date : 2019-10-01DOI: 10.1109/CAMA47423.2019.8959785
Tjahjo Adiprabowo, Tse-Hsuan Wang, D. Lin
This radar is very useful for detecting the patient's vital signs, in this case the heartbeats rate and breathing rate, without using sensors that are attached to human skin. The topic presented in this paper is the use of a 77 GHz FMCW radar to do some simultaneous non-contact measurements of the vital signs of several people.
{"title":"77 GHz FMCW Radar based Simultaneous Vital Signs Measurements","authors":"Tjahjo Adiprabowo, Tse-Hsuan Wang, D. Lin","doi":"10.1109/CAMA47423.2019.8959785","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959785","url":null,"abstract":"This radar is very useful for detecting the patient's vital signs, in this case the heartbeats rate and breathing rate, without using sensors that are attached to human skin. The topic presented in this paper is the use of a 77 GHz FMCW radar to do some simultaneous non-contact measurements of the vital signs of several people.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"227 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":"115559289","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}
Pub Date : 2019-10-01DOI: 10.1109/CAMA47423.2019.8959690
Jae-Yeong Lee, Dongkwon Choi, K. Kong, Junsik Yun, Youngno Youn, Wonpyo Kwon, W. Hong
This paper describes a methodology concerning design and measurement of millimeter-wave (mm-Wave) feeding networks including power divider to achieve high performance modules in RF high-power electronics. The design approach considering multi-port measurement within compact mm-Wave array elements is introduced and the precision design method including power divider without any power imbalance is discussed. Despite high dielectric loss tangent of FR-4 substrates, low loss feeding network can be achieved for both beam steering capability and high gain. Additionally, the design guidelines of power divider are investigated to suppress mutual coupling causing power imbalance between each port. As another alternative, the feeding network including power divider is proposed by the realization method of using back-to-back transition structures without mutual coupling issue.
{"title":"Design and Measurement Considerations of Feeding Network Including Power Divider for Multi-Port Antenna Arrays","authors":"Jae-Yeong Lee, Dongkwon Choi, K. Kong, Junsik Yun, Youngno Youn, Wonpyo Kwon, W. Hong","doi":"10.1109/CAMA47423.2019.8959690","DOIUrl":"https://doi.org/10.1109/CAMA47423.2019.8959690","url":null,"abstract":"This paper describes a methodology concerning design and measurement of millimeter-wave (mm-Wave) feeding networks including power divider to achieve high performance modules in RF high-power electronics. The design approach considering multi-port measurement within compact mm-Wave array elements is introduced and the precision design method including power divider without any power imbalance is discussed. Despite high dielectric loss tangent of FR-4 substrates, low loss feeding network can be achieved for both beam steering capability and high gain. Additionally, the design guidelines of power divider are investigated to suppress mutual coupling causing power imbalance between each port. As another alternative, the feeding network including power divider is proposed by the realization method of using back-to-back transition structures without mutual coupling issue.","PeriodicalId":170627,"journal":{"name":"2019 IEEE Conference on Antenna Measurements & Applications (CAMA)","volume":"20 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":"115071138","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}
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