Pub Date : 2016-10-27DOI: 10.1109/APS.2016.7696497
Grzegorz Wolosinski, Vincent Fusco, P. Rulikowski
This paper presents a novel high symmetry balun which significantly improves the performance of dipole-based dual-polarized antennas. The new balun structure provides enhanced differential capability leading to high performance in terms of port-to-port isolation and far-field cross polarization. An example antenna using this balun is proposed. The simulated results show 53.5% of fractional bandwidth within the band 1.71-2.96 GHz (VSWR<;1.5) and port-to-port isolation >59 dB. The radiation characteristic shows around 9 dBi of gain and far-field cross polarization <;-48 dBi over the entire bandwidth. The detailed balun functioning and full antenna measurements will be presented during the conference. Performance comparison with similar structures will be also provided.
{"title":"Broadband dual-polarized antenna with high port isolation and polarization purity","authors":"Grzegorz Wolosinski, Vincent Fusco, P. Rulikowski","doi":"10.1109/APS.2016.7696497","DOIUrl":"https://doi.org/10.1109/APS.2016.7696497","url":null,"abstract":"This paper presents a novel high symmetry balun which significantly improves the performance of dipole-based dual-polarized antennas. The new balun structure provides enhanced differential capability leading to high performance in terms of port-to-port isolation and far-field cross polarization. An example antenna using this balun is proposed. The simulated results show 53.5% of fractional bandwidth within the band 1.71-2.96 GHz (VSWR<;1.5) and port-to-port isolation >59 dB. The radiation characteristic shows around 9 dBi of gain and far-field cross polarization <;-48 dBi over the entire bandwidth. The detailed balun functioning and full antenna measurements will be presented during the conference. Performance comparison with similar structures will be also provided.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"52 1","pages":"1581-1582"},"PeriodicalIF":0.0,"publicationDate":"2016-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85609252","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 : 2016-10-27DOI: 10.1109/APS.2016.7696427
S. Cotton, Young Jin Chun, W. Scanlon, G. Conway
In this paper we present some empirically obtained path loss models for 60 GHz line of sight (LOS) and non-LOS (NLOS) off-body communications within indoor environments. In particular, we considered signal propagation from a chest worn millimeter wave transmitter and a hypothetical base station in both a laboratory and seminar room. It was found that shadowing of the direct signal path caused by the wearer's body increased the path loss by more than 20 dB at the reference distance (1 m). The fluctuation of the path loss at each of the measurement locations is modeled as a zero mean Gaussian distributed random variable and a linear relationship between the separation distance and standard deviation of the path loss variation is deduced.
{"title":"Path loss models for indoor off-body communications at 60 GHz","authors":"S. Cotton, Young Jin Chun, W. Scanlon, G. Conway","doi":"10.1109/APS.2016.7696427","DOIUrl":"https://doi.org/10.1109/APS.2016.7696427","url":null,"abstract":"In this paper we present some empirically obtained path loss models for 60 GHz line of sight (LOS) and non-LOS (NLOS) off-body communications within indoor environments. In particular, we considered signal propagation from a chest worn millimeter wave transmitter and a hypothetical base station in both a laboratory and seminar room. It was found that shadowing of the direct signal path caused by the wearer's body increased the path loss by more than 20 dB at the reference distance (1 m). The fluctuation of the path loss at each of the measurement locations is modeled as a zero mean Gaussian distributed random variable and a linear relationship between the separation distance and standard deviation of the path loss variation is deduced.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"1 1","pages":"1441-1442"},"PeriodicalIF":0.0,"publicationDate":"2016-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85785045","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 : 2016-10-27DOI: 10.1109/APS.2016.7695835
A. Aljarosha, R. Maaskant, A. Zaman, P. Kildal
A contactless, broadband and low-loss microstrip-to-groove gap waveguide transition operating at W-band is presented. The principle of operation is based on transforming EM fields from the SIW to the ridge gap waveguide mode via electromagnetic coupling. This is advantageous, since the proposed solution avoids the use of metal contact between the SIW and one of the waveguide parts. Furthermore, metamaterial-based gap waveguide technology provides a resonance-free packaging solution.
{"title":"mm-Wave contactless connection for MMIC integration in gap waveguides","authors":"A. Aljarosha, R. Maaskant, A. Zaman, P. Kildal","doi":"10.1109/APS.2016.7695835","DOIUrl":"https://doi.org/10.1109/APS.2016.7695835","url":null,"abstract":"A contactless, broadband and low-loss microstrip-to-groove gap waveguide transition operating at W-band is presented. The principle of operation is based on transforming EM fields from the SIW to the ridge gap waveguide mode via electromagnetic coupling. This is advantageous, since the proposed solution avoids the use of metal contact between the SIW and one of the waveguide parts. Furthermore, metamaterial-based gap waveguide technology provides a resonance-free packaging solution.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"293 2","pages":"253-254"},"PeriodicalIF":0.0,"publicationDate":"2016-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91458097","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 : 2016-10-27DOI: 10.1109/APS.2016.7696518
A. Al-Rawi, A. Dubok, S. J. Geluk, B. D. de Hon, M. Herben, A. B. Smolders
The wireless communication range of E-Band point-to-point antenna systems can be extended by increasing the effective isotropic radiated power (EIRP). By employing a focal plane arrays (FPA), the reflector antenna can generate a high EIRP with electronic beam steering. By axially displacing the FPA towards the reflector, the field pattern across the FPA will be broader. Therefore the number of active elements in the array is increased, resulting in a higher EIRP. An in-house developed FPA model based on the physical optics (PO) surface current method is used in this analysis. It is found that 8 dB can be gained if the FPA with 9 × 9 active array elements is axially displaced by 2.3 λ (Frequency 71 GHz) towards the reflector. For this axial displacement the tapering and spillover efficiency are maximally reduced by 3 %. A higher EIRP can be achieved by increasing the axial displacements, but in this case, the FPA size must be increased in order to meet efficiency criterion of 80 %.
{"title":"Increasing the EIRP by using FPA-fed reflector antennas","authors":"A. Al-Rawi, A. Dubok, S. J. Geluk, B. D. de Hon, M. Herben, A. B. Smolders","doi":"10.1109/APS.2016.7696518","DOIUrl":"https://doi.org/10.1109/APS.2016.7696518","url":null,"abstract":"The wireless communication range of E-Band point-to-point antenna systems can be extended by increasing the effective isotropic radiated power (EIRP). By employing a focal plane arrays (FPA), the reflector antenna can generate a high EIRP with electronic beam steering. By axially displacing the FPA towards the reflector, the field pattern across the FPA will be broader. Therefore the number of active elements in the array is increased, resulting in a higher EIRP. An in-house developed FPA model based on the physical optics (PO) surface current method is used in this analysis. It is found that 8 dB can be gained if the FPA with 9 × 9 active array elements is axially displaced by 2.3 λ (Frequency 71 GHz) towards the reflector. For this axial displacement the tapering and spillover efficiency are maximally reduced by 3 %. A higher EIRP can be achieved by increasing the axial displacements, but in this case, the FPA size must be increased in order to meet efficiency criterion of 80 %.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"186 1","pages":"1623-1624"},"PeriodicalIF":0.0,"publicationDate":"2016-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80641143","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 : 2016-10-25DOI: 10.1109/APS.2016.7695983
D. Tzarouchis, A. Sihvola
The scattering properties of a lossless isotropic dielectric sphere as a function of its relative permittivity are studied and presented. The analytically calculated extinction efficiency spectrum reveal several regions of particular interest, such as plasmonic and dielectric resonances. Additional details about the resonant properties are illustrated from a Poynting streamline perspective. As a result, different aspects of resonant spheres from microwave to optical regime are given physical interpretation, revealing emerging functionalities for plasmonic-dielectric engineered applications.
{"title":"Plasmonics to dielectrics: A resonant sphere perspective","authors":"D. Tzarouchis, A. Sihvola","doi":"10.1109/APS.2016.7695983","DOIUrl":"https://doi.org/10.1109/APS.2016.7695983","url":null,"abstract":"The scattering properties of a lossless isotropic dielectric sphere as a function of its relative permittivity are studied and presented. The analytically calculated extinction efficiency spectrum reveal several regions of particular interest, such as plasmonic and dielectric resonances. Additional details about the resonant properties are illustrated from a Poynting streamline perspective. As a result, different aspects of resonant spheres from microwave to optical regime are given physical interpretation, revealing emerging functionalities for plasmonic-dielectric engineered applications.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"21 1","pages":"549-550"},"PeriodicalIF":0.0,"publicationDate":"2016-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76706195","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 : 2016-10-25DOI: 10.1109/APS.2016.7695942
Andrew M. Chrysler, C. Furse, Y. Chung
A biocompatible UHF RFID antenna operating at 918 MHz under skin was designed and simulated using CST. The antenna was fabricated with aluminum foil (σ = 3.5 × 107 S/m) and ELCOAT conductive ink (σ ≈ 1.5 × 105 S/m). Measured return loss is better than -5dB and read range surpasses 1 m for both antennas.
{"title":"Biocompatible, implantable UHF RFID antenna made from conductive ink","authors":"Andrew M. Chrysler, C. Furse, Y. Chung","doi":"10.1109/APS.2016.7695942","DOIUrl":"https://doi.org/10.1109/APS.2016.7695942","url":null,"abstract":"A biocompatible UHF RFID antenna operating at 918 MHz under skin was designed and simulated using CST. The antenna was fabricated with aluminum foil (σ = 3.5 × 10<sup>7</sup> S/m) and ELCOAT conductive ink (σ ≈ 1.5 × 10<sup>5</sup> S/m). Measured return loss is better than -5dB and read range surpasses 1 m for both antennas.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"20 1","pages":"467-468"},"PeriodicalIF":0.0,"publicationDate":"2016-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83189514","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 : 2016-10-25DOI: 10.1109/APS.2016.7696220
Jakob Helander, A. Ericsson, D. Sjoberg, M. Gustafsson, T. Martin, C. Larsson
This paper presents imaging results of measurements conducted at 60 GHz, using the planar rectangular near-field technique. Utilizing the stated techniques at higher frequencies enables detection of smaller defects, and allows for a small measurement set-up in a laboratory environment. An algorithm based on the Fast Fourier Transform (FFT) has been developed in order to process the data. The paper provides measurement results for an illustrative panel, which show clear detection of the distributed defects. The purpose of this work is to enable processing of recent data from measurements of industrial composite panels.
{"title":"60 GHz imaging of panels for defect detection using planar scanning","authors":"Jakob Helander, A. Ericsson, D. Sjoberg, M. Gustafsson, T. Martin, C. Larsson","doi":"10.1109/APS.2016.7696220","DOIUrl":"https://doi.org/10.1109/APS.2016.7696220","url":null,"abstract":"This paper presents imaging results of measurements conducted at 60 GHz, using the planar rectangular near-field technique. Utilizing the stated techniques at higher frequencies enables detection of smaller defects, and allows for a small measurement set-up in a laboratory environment. An algorithm based on the Fast Fourier Transform (FFT) has been developed in order to process the data. The paper provides measurement results for an illustrative panel, which show clear detection of the distributed defects. The purpose of this work is to enable processing of recent data from measurements of industrial composite panels.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"12 5 1","pages":"1025-1026"},"PeriodicalIF":0.0,"publicationDate":"2016-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86162208","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 : 2016-10-25DOI: 10.1109/APS.2016.7696186
Komlan Payne, Jun-Ho Choi, Mohammad Ashraf Ali, C. Wu
A miniaturized low-profile first-order dual-band frequency selective surface (FSS) is presented. The proposed structure consists of two resonators layers separated by an ultra-thin dielectric. One layer is a 2D periodic array of a conventional Jerusalem Cross (JC) shaped unit element. The other layer is based on a hybrid of cross slot dipole bounded by a square loop wire slot. The FSS structure utilizes resonant elements and strong coupling between the layers to achieve a high-Q dual bandpass response, delivering the first operating band at a low frequency. The main advantages of the proposed FSS include miniaturized periodic dimensions of about λ0/15, ultra-thin overall thickness (in the range of λ0/200, where λ0 is the free space wavelength at the lowest band of operation), and highly selective bandpass response. A prototype, simultaneously operating at S and C bands is fabricated and tested using a standard free space measurement.
{"title":"Highly-selective miniaturized first-order low-profile dual-band frequency selective surface","authors":"Komlan Payne, Jun-Ho Choi, Mohammad Ashraf Ali, C. Wu","doi":"10.1109/APS.2016.7696186","DOIUrl":"https://doi.org/10.1109/APS.2016.7696186","url":null,"abstract":"A miniaturized low-profile first-order dual-band frequency selective surface (FSS) is presented. The proposed structure consists of two resonators layers separated by an ultra-thin dielectric. One layer is a 2D periodic array of a conventional Jerusalem Cross (JC) shaped unit element. The other layer is based on a hybrid of cross slot dipole bounded by a square loop wire slot. The FSS structure utilizes resonant elements and strong coupling between the layers to achieve a high-Q dual bandpass response, delivering the first operating band at a low frequency. The main advantages of the proposed FSS include miniaturized periodic dimensions of about λ0/15, ultra-thin overall thickness (in the range of λ0/200, where λ0 is the free space wavelength at the lowest band of operation), and highly selective bandpass response. A prototype, simultaneously operating at S and C bands is fabricated and tested using a standard free space measurement.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"47 1","pages":"955-956"},"PeriodicalIF":0.0,"publicationDate":"2016-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80380172","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 : 2016-10-25DOI: 10.1109/APS.2016.7696601
M. Leino, H. Partanen, N. Lindvall, R. Luomaniemi, T. Kangas, D. Tzarouchis, J. Holopainen, V. Viikari
In this paper, a simulated and measured results of a broadband monopole antenna is presented. The proposed design will be used in the RF power scavenger application of the 2016 IEEE AP-S Student Design Contest. The antenna has a -6-dB impedance bandwidth from 930 MHz up to 2420 MHz and omnidirectional radiation pattern in the horizontal plane. The simulated and measured results indicate that the antenna is applicable to an RF scavenger.
{"title":"Wideband monopole antenna for RF power scavenger","authors":"M. Leino, H. Partanen, N. Lindvall, R. Luomaniemi, T. Kangas, D. Tzarouchis, J. Holopainen, V. Viikari","doi":"10.1109/APS.2016.7696601","DOIUrl":"https://doi.org/10.1109/APS.2016.7696601","url":null,"abstract":"In this paper, a simulated and measured results of a broadband monopole antenna is presented. The proposed design will be used in the RF power scavenger application of the 2016 IEEE AP-S Student Design Contest. The antenna has a -6-dB impedance bandwidth from 930 MHz up to 2420 MHz and omnidirectional radiation pattern in the horizontal plane. The simulated and measured results indicate that the antenna is applicable to an RF scavenger.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"37 1","pages":"1789-1790"},"PeriodicalIF":0.0,"publicationDate":"2016-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73143747","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 : 2016-10-25DOI: 10.1109/APS.2016.7696306
K. Tekkouk, J. Hirokawa, K. Oogimoto, T. Nagatsuma, H. Seto, Y. Inoue, M. Saito
A corporate feed slotted waveguide array antenna with broadband characteristics in term of gain in the 350 GHz band is achieved by measurement for the first time. The etching accuracy for thin laminated plates of the diffusion bonding process with conventional chemical etching is limited to ±20μm. This limits the use of this process for antenna fabrication in the submillimeter wave band where the fabrication tolerances are very severe. To improve the etching accuracy of the thin laminated plates, a new fabrication process has been developed. Each silicon wafer is etched by DRIE (deep reactive ion etcher) and is plated by gold on the surface. This new fabrication process provides better fabrication tolerances about ±5μ™ using wafer bond aligner. The thin laminated wafers are then bonded with the diffusion bonding process under high temperature and high pressure. To validate the proposed antenna concepts, four antenna prototypes have been designed and fabricated in the 350 GHz band. The 3dB-down gain bandwidth is about 35GHz by this silicon process while it was about 15GHz by the conventional process using metal plates in measurement.
{"title":"Corporate-feed slotted wavguide array antenna at 350 GHz band by silicon process","authors":"K. Tekkouk, J. Hirokawa, K. Oogimoto, T. Nagatsuma, H. Seto, Y. Inoue, M. Saito","doi":"10.1109/APS.2016.7696306","DOIUrl":"https://doi.org/10.1109/APS.2016.7696306","url":null,"abstract":"A corporate feed slotted waveguide array antenna with broadband characteristics in term of gain in the 350 GHz band is achieved by measurement for the first time. The etching accuracy for thin laminated plates of the diffusion bonding process with conventional chemical etching is limited to ±20μm. This limits the use of this process for antenna fabrication in the submillimeter wave band where the fabrication tolerances are very severe. To improve the etching accuracy of the thin laminated plates, a new fabrication process has been developed. Each silicon wafer is etched by DRIE (deep reactive ion etcher) and is plated by gold on the surface. This new fabrication process provides better fabrication tolerances about ±5μ™ using wafer bond aligner. The thin laminated wafers are then bonded with the diffusion bonding process under high temperature and high pressure. To validate the proposed antenna concepts, four antenna prototypes have been designed and fabricated in the 350 GHz band. The 3dB-down gain bandwidth is about 35GHz by this silicon process while it was about 15GHz by the conventional process using metal plates in measurement.","PeriodicalId":6496,"journal":{"name":"2016 IEEE International Symposium on Antennas and Propagation (APSURSI)","volume":"47 1","pages":"1197-1198"},"PeriodicalIF":0.0,"publicationDate":"2016-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82038129","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：