Pub Date : 2016-06-01DOI: 10.1109/APS.2016.7696363
Ben You, Liang Zhou, Linsheng Wu, Yao-ping Zhang, J. Mao
This paper provides a succinct and feasible theoretical analysis of a reflected plate for the generation of orbital angular momentum (OAM) mode. The plate is formed by several sectors with specific reflection phases. The Ansoft HFSS simulated results agree well with those with the proposed theory.
{"title":"Theoretical analysis of a reflected plate for OAM mode generation based on phase-shifting surface","authors":"Ben You, Liang Zhou, Linsheng Wu, Yao-ping Zhang, J. Mao","doi":"10.1109/APS.2016.7696363","DOIUrl":"https://doi.org/10.1109/APS.2016.7696363","url":null,"abstract":"This paper provides a succinct and feasible theoretical analysis of a reflected plate for the generation of orbital angular momentum (OAM) mode. The plate is formed by several sectors with specific reflection phases. The Ansoft HFSS simulated results agree well with those with the proposed theory.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"106 1","pages":"1311-1312"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73694181","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 : 2016-06-01DOI: 10.1109/APS.2016.7696203
B. Mehta, M. Zaghloul
In this work, electric field distribution is compared between the dipole and bow-tie Optical Nano Antenna (ONA) structures using the Finite Difference Time Domain (FDTD) simulations. These results are very crucial for sensing applications. It will help us decide how much thickness would be appropriate for covering the ONA structues.
{"title":"Comparison between electric field for plasmonic dipole and bow-tie ONA structures","authors":"B. Mehta, M. Zaghloul","doi":"10.1109/APS.2016.7696203","DOIUrl":"https://doi.org/10.1109/APS.2016.7696203","url":null,"abstract":"In this work, electric field distribution is compared between the dipole and bow-tie Optical Nano Antenna (ONA) structures using the Finite Difference Time Domain (FDTD) simulations. These results are very crucial for sensing applications. It will help us decide how much thickness would be appropriate for covering the ONA structues.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"16 1","pages":"989-990"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73704693","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 : 2016-06-01DOI: 10.1109/APS.2016.7696335
F. Yuan, Y. Lee, Y. S. Meng
In this paper, cloud attenuation on a Ka-band satellite propagation link in the tropical country of Singapore is investigated and analyzed. The satellite signal is received by a beacon receiver at 18.9 GHz. Through differentiating the clouds from rain events along the satellite link using weather Radar data, the cloud induced attenuation is experimentally estimated from the recorded beacon signal. Moreover, radiosonde data is also processed to calculate the cloud attenuation by applying the Salonen and Uppala (SU) model. The results show that cumulative distribution function (CDF) of half-year cloud attenuation derived from beacon signal is almost the same as that calculated from the SU model.
{"title":"Investigation of cloud attenuation on Ka-band satellite beacon signal in tropical region","authors":"F. Yuan, Y. Lee, Y. S. Meng","doi":"10.1109/APS.2016.7696335","DOIUrl":"https://doi.org/10.1109/APS.2016.7696335","url":null,"abstract":"In this paper, cloud attenuation on a Ka-band satellite propagation link in the tropical country of Singapore is investigated and analyzed. The satellite signal is received by a beacon receiver at 18.9 GHz. Through differentiating the clouds from rain events along the satellite link using weather Radar data, the cloud induced attenuation is experimentally estimated from the recorded beacon signal. Moreover, radiosonde data is also processed to calculate the cloud attenuation by applying the Salonen and Uppala (SU) model. The results show that cumulative distribution function (CDF) of half-year cloud attenuation derived from beacon signal is almost the same as that calculated from the SU model.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"1 1","pages":"1255-1256"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73713776","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 : 2016-06-01DOI: 10.1109/APS.2016.7695845
H. Nakano, K. Sakata, J. Yamauchi
A linearly polarized (LP) metaline radiates a back-broadside-forward (BBF) scanning beam, where the broadside beam appears at a specific frequency. In contrast, two LP metalines excited in balanced mode form a broadside beam across a wide frequency band. This double metaline system has a gain bandwidth of 31% for the LP broadside radiation. Similar wide-band operation is realized for a circularly polarized (CP) broadside beam, when two metalines, each radiating a CP BBF scanning beam, are excited in balanced mode. This double metaline system shows a gain bandwidth of 32% for the CP broadside radiation.
{"title":"Wide-band broadside radiation from a double metaline system","authors":"H. Nakano, K. Sakata, J. Yamauchi","doi":"10.1109/APS.2016.7695845","DOIUrl":"https://doi.org/10.1109/APS.2016.7695845","url":null,"abstract":"A linearly polarized (LP) metaline radiates a back-broadside-forward (BBF) scanning beam, where the broadside beam appears at a specific frequency. In contrast, two LP metalines excited in balanced mode form a broadside beam across a wide frequency band. This double metaline system has a gain bandwidth of 31% for the LP broadside radiation. Similar wide-band operation is realized for a circularly polarized (CP) broadside beam, when two metalines, each radiating a CP BBF scanning beam, are excited in balanced mode. This double metaline system shows a gain bandwidth of 32% for the CP broadside radiation.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"347 1","pages":"273-274"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74107827","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 : 2016-06-01DOI: 10.1109/APS.2016.7695975
C. A. Viteri-Mera, F. Teixeira
We introduce the concept of Polarimetric interference-alignment (PIA) beamforming for multiuser MIMO channels. By using vector antennas, we harness the orthogonal polarization components of electromagnetic waves to provide a signal space for the interference-alignment technique proposed by Cadambe and Jafar. We show that such beamformer exists and provide preliminary comments regarding its operation and performance.
{"title":"Polarimetrie interference-alignment beamforming","authors":"C. A. Viteri-Mera, F. Teixeira","doi":"10.1109/APS.2016.7695975","DOIUrl":"https://doi.org/10.1109/APS.2016.7695975","url":null,"abstract":"We introduce the concept of Polarimetric interference-alignment (PIA) beamforming for multiuser MIMO channels. By using vector antennas, we harness the orthogonal polarization components of electromagnetic waves to provide a signal space for the interference-alignment technique proposed by Cadambe and Jafar. We show that such beamformer exists and provide preliminary comments regarding its operation and performance.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"90 4 1","pages":"533-534"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78405839","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 : 2016-06-01DOI: 10.1109/APS.2016.7695927
J. Logan, M. Vouvakis
The proposed Sliced Notch Antenna (SNA) array fixes the longstanding problem of high cross-polarization radiation in Vivaldi arrays while maintaining their excellent wideband wide-scan impedance performance with a simple reconfiguration of the Vivaldi fins. The enabling technical innovation is the introduction of discontinuities at the upper region of the flared fins that control the ratio of vertical-to-horizontal current density, without introducing sizable reflections. Measurements and simulations suggest a 10:1 (1.2-12 GHz) SNA array operation with good scanning VSWR out to 45°, and about 15 dB polarization purity improvement over a well-designed Vivaldi counterpart.
{"title":"Decade-bandwidth low cross-polarization UWB array","authors":"J. Logan, M. Vouvakis","doi":"10.1109/APS.2016.7695927","DOIUrl":"https://doi.org/10.1109/APS.2016.7695927","url":null,"abstract":"The proposed Sliced Notch Antenna (SNA) array fixes the longstanding problem of high cross-polarization radiation in Vivaldi arrays while maintaining their excellent wideband wide-scan impedance performance with a simple reconfiguration of the Vivaldi fins. The enabling technical innovation is the introduction of discontinuities at the upper region of the flared fins that control the ratio of vertical-to-horizontal current density, without introducing sizable reflections. Measurements and simulations suggest a 10:1 (1.2-12 GHz) SNA array operation with good scanning VSWR out to 45°, and about 15 dB polarization purity improvement over a well-designed Vivaldi counterpart.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"2 1","pages":"437-438"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72659231","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 : 2016-06-01DOI: 10.1109/APS.2016.7696413
Taha Yekan, R. Baktur
This paper presents an integrating of highly transparent X band reflectarrays on the cover glass of solar panels. Optimal unit cell element, effect of the solar cell on the antenna, feed consideration, and final design data are presented. The overall transparency and aperture efficiency of the design are more than 90% and 40% respectively, making it a promising solution as a high gain conformal satellite antenna.
{"title":"Design of two transparent X band reflectarray antennas integrated on a satellite panel","authors":"Taha Yekan, R. Baktur","doi":"10.1109/APS.2016.7696413","DOIUrl":"https://doi.org/10.1109/APS.2016.7696413","url":null,"abstract":"This paper presents an integrating of highly transparent X band reflectarrays on the cover glass of solar panels. Optimal unit cell element, effect of the solar cell on the antenna, feed consideration, and final design data are presented. The overall transparency and aperture efficiency of the design are more than 90% and 40% respectively, making it a promising solution as a high gain conformal satellite antenna.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"32 1","pages":"1413-1414"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72700727","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 : 2016-06-01DOI: 10.1109/APS.2016.7696531
Ge Zhang, Shi Pu, Zhirui Liu, Wen Liu
Some millimeter wavebands, such as 60 GHz, would probably be selected as the main operating frequencies of the next 5th generation wireless/mobile communication systems, for their obvious advantages of wider available transmission bandwidth and higher achievable transmission rate. In this paper, a novel structural design of microstrip antenna array working at the 60 GHz frequency band has been proposed. This new kind of the whole microstrip antenna array is formed by two “Y” shaped branches, which are connected through an outside annular feeding line. In each “Y” shaped branch, there are two lines of three rectangular patches linearly composed together. The radius of annular feeding line has been optimized based on half-wavelength impedance repetitiveness. The result has been shown that the presented new microstrip antenna array can achieve the high gain value of nearly 9.65 dBi at around 60 GHz.
{"title":"Design of 60 GHz microstrip antenna array composed through annular feeding line","authors":"Ge Zhang, Shi Pu, Zhirui Liu, Wen Liu","doi":"10.1109/APS.2016.7696531","DOIUrl":"https://doi.org/10.1109/APS.2016.7696531","url":null,"abstract":"Some millimeter wavebands, such as 60 GHz, would probably be selected as the main operating frequencies of the next 5th generation wireless/mobile communication systems, for their obvious advantages of wider available transmission bandwidth and higher achievable transmission rate. In this paper, a novel structural design of microstrip antenna array working at the 60 GHz frequency band has been proposed. This new kind of the whole microstrip antenna array is formed by two “Y” shaped branches, which are connected through an outside annular feeding line. In each “Y” shaped branch, there are two lines of three rectangular patches linearly composed together. The radius of annular feeding line has been optimized based on half-wavelength impedance repetitiveness. The result has been shown that the presented new microstrip antenna array can achieve the high gain value of nearly 9.65 dBi at around 60 GHz.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"24 1","pages":"1649-1650"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75141551","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 : 2016-06-01DOI: 10.1109/APS.2016.7696176
A. Michel, P. Nepa, M. Pino
A novel configuration of a Modular Antenna proposed for NF UHF-RFID desktop reader applications is here described. Specifically, a spiral Travelling Wave Antenna (TWA) is used to generate a strong and uniform field in proximity of the antenna surface. Then, such a microstrip transmission line feeds four resonating curved slot antennas placed close to the spiral TWA and 90-degree rotated with respect to the desktop reader antenna center, through a series-feeding connection. In order to radiate a circularly polarized field, the four slots are fed with the same current amplitude and with a 90-degree phase-shift (sequential rotation feeding technique). To make the antenna scalable, the spiral TWA is extended beyond each slot antenna, so spreading the generated field in a large and arbitrarily shaped area.
{"title":"A modular antenna for near-field UHF-RFID smart point readers","authors":"A. Michel, P. Nepa, M. Pino","doi":"10.1109/APS.2016.7696176","DOIUrl":"https://doi.org/10.1109/APS.2016.7696176","url":null,"abstract":"A novel configuration of a Modular Antenna proposed for NF UHF-RFID desktop reader applications is here described. Specifically, a spiral Travelling Wave Antenna (TWA) is used to generate a strong and uniform field in proximity of the antenna surface. Then, such a microstrip transmission line feeds four resonating curved slot antennas placed close to the spiral TWA and 90-degree rotated with respect to the desktop reader antenna center, through a series-feeding connection. In order to radiate a circularly polarized field, the four slots are fed with the same current amplitude and with a 90-degree phase-shift (sequential rotation feeding technique). To make the antenna scalable, the spiral TWA is extended beyond each slot antenna, so spreading the generated field in a large and arbitrarily shaped area.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"57 1","pages":"935-936"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77365397","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 : 2016-06-01DOI: 10.1109/APS.2016.7695805
K. L. Smith, R. Adams, T. Weldon
Measured results are compared to simulation results for a wideband software-adjustable fast-wave line using coaxial line sections loaded with digital discrete-time non-Foster circuit elements. In the proposed approach, the negative capacitance of non-Foster circuit elements is varied by changing the signal processing in the digital non-Foster circuit. For the purposes of demonstration and comparison with analog non-Foster approaches, a prototype three-stage fast-wave coaxial line is implemented using three digital negative capacitors. Group delay is shown to be less than in corresponding vacuum propagation, and group delay is shown to be adjustable in software with varied negative capacitance. Measured and simulated results are in good agreement, and closely resemble a frequency-scaled version of prior fast-wave results for analog non-Foster loaded waveguide at higher frequency.
{"title":"Measurement of a fast-wave line using digital non-Foster circuits for software-adjustable delay","authors":"K. L. Smith, R. Adams, T. Weldon","doi":"10.1109/APS.2016.7695805","DOIUrl":"https://doi.org/10.1109/APS.2016.7695805","url":null,"abstract":"Measured results are compared to simulation results for a wideband software-adjustable fast-wave line using coaxial line sections loaded with digital discrete-time non-Foster circuit elements. In the proposed approach, the negative capacitance of non-Foster circuit elements is varied by changing the signal processing in the digital non-Foster circuit. For the purposes of demonstration and comparison with analog non-Foster approaches, a prototype three-stage fast-wave coaxial line is implemented using three digital negative capacitors. Group delay is shown to be less than in corresponding vacuum propagation, and group delay is shown to be adjustable in software with varied negative capacitance. Measured and simulated results are in good agreement, and closely resemble a frequency-scaled version of prior fast-wave results for analog non-Foster loaded waveguide at higher frequency.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"40 1","pages":"193-194"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77385884","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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