IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)最新文献
We analyze the electromagnetic scattering from an array of metal strips by using the wavelet matrix transform approach. Daubechies' (1988) wavelet bases are chosen to construct sparse wavelet matrices so that matrix-matrix multiplications necessary for the wavelet matrix transform cost only O(N/sup 2/). Resulting sparse matrix equations are treated effectively by a sparse linear system solver by which the cost of solving matrix equations is the order of O(NlogN). Finally, appropriate choice of the number of vanishing moments to obtain fast and accurate solution are studied through numerical experiments.
{"title":"Wavelet matrix transform approach for the solution of electromagnetic integral equations","authors":"Ning Guan, K. Yashiro, S. Ohkawa","doi":"10.1109/APS.1999.789155","DOIUrl":"https://doi.org/10.1109/APS.1999.789155","url":null,"abstract":"We analyze the electromagnetic scattering from an array of metal strips by using the wavelet matrix transform approach. Daubechies' (1988) wavelet bases are chosen to construct sparse wavelet matrices so that matrix-matrix multiplications necessary for the wavelet matrix transform cost only O(N/sup 2/). Resulting sparse matrix equations are treated effectively by a sparse linear system solver by which the cost of solving matrix equations is the order of O(NlogN). Finally, appropriate choice of the number of vanishing moments to obtain fast and accurate solution are studied through numerical experiments.","PeriodicalId":391546,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127339334","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}
S. Georgakopoulos, A. C. Polycarpou, C. Balanis, C. Birtcher
Cavity-backed slot antennas have been widely used in different types of applications within the microwave band, including radar, satellite communications, mobile telephony, broadcast TV, and aircraft/spacecraft communications. They are relatively easy to manufacture, light-weight and often small in size. Their low profile is an important characteristic, especially for aircraft, missile and spacecraft, applications, because they can be flush-mounted on the surface of airborne vehicles without affecting the vehicle's aerodynamic profile. In this paper, the coupling of cavity-backed slot antennas is analyzed by using the finite-difference time-domain (FDTD) method and the finite element method (FEM). Also, parametric studies are performed to examine the dependence of the coupling on the frequency of operation and the separation between the apertures. The numerical results are validated by comparison with measurements.
{"title":"Analysis of coupling between cavity-backed slot antennas: FDTD, FEM and measurements","authors":"S. Georgakopoulos, A. C. Polycarpou, C. Balanis, C. Birtcher","doi":"10.1109/APS.1999.789206","DOIUrl":"https://doi.org/10.1109/APS.1999.789206","url":null,"abstract":"Cavity-backed slot antennas have been widely used in different types of applications within the microwave band, including radar, satellite communications, mobile telephony, broadcast TV, and aircraft/spacecraft communications. They are relatively easy to manufacture, light-weight and often small in size. Their low profile is an important characteristic, especially for aircraft, missile and spacecraft, applications, because they can be flush-mounted on the surface of airborne vehicles without affecting the vehicle's aerodynamic profile. In this paper, the coupling of cavity-backed slot antennas is analyzed by using the finite-difference time-domain (FDTD) method and the finite element method (FEM). Also, parametric studies are performed to examine the dependence of the coupling on the frequency of operation and the separation between the apertures. The numerical results are validated by comparison with measurements.","PeriodicalId":391546,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129958798","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}
This paper focuses on the optimum synthesis of Luneburg lens antennas using a novel application of the genetic algorithm (GA) optimizer. Since it is desired to simultaneously control both the achievable gain as well as to reduce grating lobe levels, an adaptive cost function is used in the process of the GA optimization. To determine the scattered field of the lens antenna an analytic technique is used based on the dyadic Green's function of the multi-layered spherical shell. It is shown that the radiation performance of the uniform Luneburg lens is significantly improved by designing a non-uniform lens with a low number of shells. The antenna gain is increased and the grating lobes are suppressed considerably. Many useful engineering design guidelines have been established for the optimum design of the lens.
{"title":"Non-uniform Luneburg lens antennas: a design approach based on genetic algorithms","authors":"H. Mosallaei, Y. Rahmat-Samii","doi":"10.1109/APS.1999.789171","DOIUrl":"https://doi.org/10.1109/APS.1999.789171","url":null,"abstract":"This paper focuses on the optimum synthesis of Luneburg lens antennas using a novel application of the genetic algorithm (GA) optimizer. Since it is desired to simultaneously control both the achievable gain as well as to reduce grating lobe levels, an adaptive cost function is used in the process of the GA optimization. To determine the scattered field of the lens antenna an analytic technique is used based on the dyadic Green's function of the multi-layered spherical shell. It is shown that the radiation performance of the uniform Luneburg lens is significantly improved by designing a non-uniform lens with a low number of shells. The antenna gain is increased and the grating lobes are suppressed considerably. Many useful engineering design guidelines have been established for the optimum design of the lens.","PeriodicalId":391546,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130074180","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}
The frequency response of a dipole with asymmetric radii fed in the sleeve via a coaxial aperture is computed. A numerical electromagnetics code (NEC4.1) wire grid model is compared with a body of revolution finite difference time domain (2.5FDTD) solid model after Fourier transformation. Directive gain patterns and source impedance show an effective approach to designing a broad range of omnidirectional TM/sub Z/ antennas for VHF/UHF spectrum.
{"title":"Numerical techniques for VHF/UHF cylinder radiators","authors":"C. Repesh","doi":"10.1109/APS.1999.789249","DOIUrl":"https://doi.org/10.1109/APS.1999.789249","url":null,"abstract":"The frequency response of a dipole with asymmetric radii fed in the sleeve via a coaxial aperture is computed. A numerical electromagnetics code (NEC4.1) wire grid model is compared with a body of revolution finite difference time domain (2.5FDTD) solid model after Fourier transformation. Directive gain patterns and source impedance show an effective approach to designing a broad range of omnidirectional TM/sub Z/ antennas for VHF/UHF spectrum.","PeriodicalId":391546,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130096532","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}
A highly successful Earth orbiting synthetic antenna aperture radar (SAR) system, known as the SIR-C mission, was carried into orbit in 1994 on a US Shuttle (space transportation system) mission. The radar system was mounted in the cargo bay with no need to fold, or in any other way reduce the size of the antennas for launch. Weight and size were not limited for the L-band, C-band, and X-band radar systems of the SIR-C radar imaging mission; the set of antennas weighed 10500 kg, the L-band antenna having the major share of the weight. This paper treats designing an L-band antenna functionally similar to that used for SIR-C, but at a fraction of the cost and at a weight in the order of 250 kg. Further, the antenna must be folded to fit into the small payload shroud of low cost booster rocket systems. Over 31 square meters of antenna area is required. This low weight, foldable, electronic scanning antenna is for the proposed LightSAR radar system which is to be placed in Earth orbit on a small, dedicated spacecraft the lowest possible cost for an efficient L-band radar imaging system. This LightSAR spacecraft radar is to be continuously available for at least five operational years, and have the ability to map or repeat-map any area on Earth within a few days of any request. A microstrip patch array, with microstrip transmission lines employed in the aperture and in the corporate feed network, was chosen as the low cost approach for this active dual-polarization, 80 MHz (6.4 %) bandwidth antenna design.
{"title":"A dual polarization, active, microstrip antenna for an orbital imaging radar system operating at L-band","authors":"K. Kelly, J. Huang","doi":"10.1109/APS.1999.789107","DOIUrl":"https://doi.org/10.1109/APS.1999.789107","url":null,"abstract":"A highly successful Earth orbiting synthetic antenna aperture radar (SAR) system, known as the SIR-C mission, was carried into orbit in 1994 on a US Shuttle (space transportation system) mission. The radar system was mounted in the cargo bay with no need to fold, or in any other way reduce the size of the antennas for launch. Weight and size were not limited for the L-band, C-band, and X-band radar systems of the SIR-C radar imaging mission; the set of antennas weighed 10500 kg, the L-band antenna having the major share of the weight. This paper treats designing an L-band antenna functionally similar to that used for SIR-C, but at a fraction of the cost and at a weight in the order of 250 kg. Further, the antenna must be folded to fit into the small payload shroud of low cost booster rocket systems. Over 31 square meters of antenna area is required. This low weight, foldable, electronic scanning antenna is for the proposed LightSAR radar system which is to be placed in Earth orbit on a small, dedicated spacecraft the lowest possible cost for an efficient L-band radar imaging system. This LightSAR spacecraft radar is to be continuously available for at least five operational years, and have the ability to map or repeat-map any area on Earth within a few days of any request. A microstrip patch array, with microstrip transmission lines employed in the aperture and in the corporate feed network, was chosen as the low cost approach for this active dual-polarization, 80 MHz (6.4 %) bandwidth antenna design.","PeriodicalId":391546,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128943372","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}
Strip line phase shifters are key devices widely used in phased array antenna application. To avoid the grating-lobes through a wide range of scanning angle, the element spacing in the array should be less than about /spl lambda//2. In order to arrange all of the phase shifters in the phased array antenna on a single plane, each phase shifter should be as compact as possible. The digital phase shifter composed of cascaded several bit elements (180/spl deg/, 90/spl deg/, 45/spl deg/, 22.5/spl deg/...), is widely used for phased array application. We propose 180/spl deg///spl alpha//spl deg/ combined phase shifter, which consists of 180/spl deg/ switched-line section and arbitrary angle (/spl alpha//spl deg/) loaded-line section. This proposed phase shifter operates as a 2-bit phase shifter, and has both physical and electrical advantages, i.e., its compact size and small phase shift deviation. This paper presents the basic configuration of the proposed phase shifter, and also presents an example of the characteristics in the case of a /spl alpha//spl deg/=45/spl deg/ calculated by the method of moment.
{"title":"180/spl deg///spl alpha//spl deg/ combined phase shifter","authors":"K. Nakada, T. Marumoto, R. Iwata","doi":"10.1109/APS.1999.789120","DOIUrl":"https://doi.org/10.1109/APS.1999.789120","url":null,"abstract":"Strip line phase shifters are key devices widely used in phased array antenna application. To avoid the grating-lobes through a wide range of scanning angle, the element spacing in the array should be less than about /spl lambda//2. In order to arrange all of the phase shifters in the phased array antenna on a single plane, each phase shifter should be as compact as possible. The digital phase shifter composed of cascaded several bit elements (180/spl deg/, 90/spl deg/, 45/spl deg/, 22.5/spl deg/...), is widely used for phased array application. We propose 180/spl deg///spl alpha//spl deg/ combined phase shifter, which consists of 180/spl deg/ switched-line section and arbitrary angle (/spl alpha//spl deg/) loaded-line section. This proposed phase shifter operates as a 2-bit phase shifter, and has both physical and electrical advantages, i.e., its compact size and small phase shift deviation. This paper presents the basic configuration of the proposed phase shifter, and also presents an example of the characteristics in the case of a /spl alpha//spl deg/=45/spl deg/ calculated by the method of moment.","PeriodicalId":391546,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130198535","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}
In the past, there is little work on field analysis of source interaction with periodic structures. This paper describes a numerically exact method for both near and far fields of sources (anomalies) within periodic structures. The problem is first converted into numerical modeling of infinite phased array of artificial sources. Analytical array scanning of the infinite array fields results in the desired field solutions. The examples of a line-source within a corrugated parallel-plate waveguide, a line-source within a dielectric-strip grating structure, and a dipole on an artificial periodic substrate are given to illustrate this general numerical approach. A contribution of this work is that it identifies the mode-conversion mechanism from plane-waves to periodic waves, and it also provides fundamental understanding of field theory of sources within two- or three-dimensional periodic (photonic band-gap) media.
{"title":"An analytical array scanning method for field computations of sources within a periodic structure","authors":"Hung Yu, D. Yang","doi":"10.1109/APS.1999.789247","DOIUrl":"https://doi.org/10.1109/APS.1999.789247","url":null,"abstract":"In the past, there is little work on field analysis of source interaction with periodic structures. This paper describes a numerically exact method for both near and far fields of sources (anomalies) within periodic structures. The problem is first converted into numerical modeling of infinite phased array of artificial sources. Analytical array scanning of the infinite array fields results in the desired field solutions. The examples of a line-source within a corrugated parallel-plate waveguide, a line-source within a dielectric-strip grating structure, and a dipole on an artificial periodic substrate are given to illustrate this general numerical approach. A contribution of this work is that it identifies the mode-conversion mechanism from plane-waves to periodic waves, and it also provides fundamental understanding of field theory of sources within two- or three-dimensional periodic (photonic band-gap) media.","PeriodicalId":391546,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130740911","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}
An analytical solution for the calculation of the bistatic scattered Doppler spectrum from a vibrating metallic circular cylinder is presented. First the scattering solution of a slightly deformed circular cylinder is obtained using a perturbation method. Then, assuming the vibration frequency is much smaller than the frequency of the incident electromagnetic plane wave, a closed form expression for the time-frequency response of the bistatic scattered field is obtained which can be used directly for estimating the Doppler spectrum. Results indicate that the scattered Doppler frequencies correspond to the mechanical vibration frequencies of the cylinder, and the sidelobe Doppler spectrum level is, to the first order, linearly proportional to the degree of deformation and is a function of bistatic angle. Utilizing the information in the scattered Doppler spectrum could provide an effective means of buried object identification, where acoustic waves are used to vibrate the buried object at resonance.
{"title":"Estimation of Doppler spectrum from a vibrating metallic circular cylinder","authors":"K. Sarabandi, D. E. Lawrence","doi":"10.1109/APS.1999.789401","DOIUrl":"https://doi.org/10.1109/APS.1999.789401","url":null,"abstract":"An analytical solution for the calculation of the bistatic scattered Doppler spectrum from a vibrating metallic circular cylinder is presented. First the scattering solution of a slightly deformed circular cylinder is obtained using a perturbation method. Then, assuming the vibration frequency is much smaller than the frequency of the incident electromagnetic plane wave, a closed form expression for the time-frequency response of the bistatic scattered field is obtained which can be used directly for estimating the Doppler spectrum. Results indicate that the scattered Doppler frequencies correspond to the mechanical vibration frequencies of the cylinder, and the sidelobe Doppler spectrum level is, to the first order, linearly proportional to the degree of deformation and is a function of bistatic angle. Utilizing the information in the scattered Doppler spectrum could provide an effective means of buried object identification, where acoustic waves are used to vibrate the buried object at resonance.","PeriodicalId":391546,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132899740","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}
Jackson et al. (1993) developed a new microstrip patch, the shorted annular ring-reduced surface wave (SAR-RSW) antenna. This microstrip antenna produces only a small amount of surface-wave excitation. In addition, if printed on an electrically thin substrate (so that /spl beta/(TM/sub 0/)/spl ap/k/sub 0/), this antenna only weakly excites lateral waves (the space-wave fields that propagate along the air-dielectric interface). In this presentation we summarize our study of the mutual coupling between SAR-RSW antennas. The mutual coupling between conventional circular patches is used as a comparative reference, since these results are representative of the coupling between typical microstrip antennas. The same analysis is used for both antennas, since the SAR-RSW antenna becomes a conventional circular patch in the limiting case when the inner radius goes to zero. We present numerical results from a theoretical analysis of the mutual coupling, along with experimental results. The mutual coupling behavior is then explained using an asymptotic analysis, which demonstrates how the mutual coupling varies with patch separation. Finally, a theoretical investigation of both lateral- and surface-wave contributions to the coupling is performed to investigate the importance of these two contributions to the mutual coupling.
{"title":"Mutual coupling between shorted annular ring-reduced surface wave antennas","authors":"M. A. Khayat, J.T. Williams, D. Jackson, S. Long","doi":"10.1109/APS.1999.789438","DOIUrl":"https://doi.org/10.1109/APS.1999.789438","url":null,"abstract":"Jackson et al. (1993) developed a new microstrip patch, the shorted annular ring-reduced surface wave (SAR-RSW) antenna. This microstrip antenna produces only a small amount of surface-wave excitation. In addition, if printed on an electrically thin substrate (so that /spl beta/(TM/sub 0/)/spl ap/k/sub 0/), this antenna only weakly excites lateral waves (the space-wave fields that propagate along the air-dielectric interface). In this presentation we summarize our study of the mutual coupling between SAR-RSW antennas. The mutual coupling between conventional circular patches is used as a comparative reference, since these results are representative of the coupling between typical microstrip antennas. The same analysis is used for both antennas, since the SAR-RSW antenna becomes a conventional circular patch in the limiting case when the inner radius goes to zero. We present numerical results from a theoretical analysis of the mutual coupling, along with experimental results. The mutual coupling behavior is then explained using an asymptotic analysis, which demonstrates how the mutual coupling varies with patch separation. Finally, a theoretical investigation of both lateral- and surface-wave contributions to the coupling is performed to investigate the importance of these two contributions to the mutual coupling.","PeriodicalId":391546,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","volume":"114116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132165602","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}
It has been demonstrated that an all-fibre electric field sensor comprising a D-shaped optical fibre coated with a transversely poled piezoelectric material can be successfully modelled by using finite element analysis (FEA) techniques. The modelling was employed to compute the phase shift over the frequency range from 100 Hz to 50 MHz. This work describes, for the first time, the novel approach of using the FEA to simulate the response of a optical D-fibre antenna. One unique advantage of the optical fibre antenna is that it is all-dielectric and it is relatively transparent to the incident electric field. Therefore the optical fibre antenna will not significantly distort or scatter the incident field.
{"title":"Finite element modelling of an optical antenna using piezoelectric polymer coated D-fibre","authors":"A. Bhatti, H. Al-Raweshidy, G. Murtaza","doi":"10.1109/APS.1999.789228","DOIUrl":"https://doi.org/10.1109/APS.1999.789228","url":null,"abstract":"It has been demonstrated that an all-fibre electric field sensor comprising a D-shaped optical fibre coated with a transversely poled piezoelectric material can be successfully modelled by using finite element analysis (FEA) techniques. The modelling was employed to compute the phase shift over the frequency range from 100 Hz to 50 MHz. This work describes, for the first time, the novel approach of using the FEA to simulate the response of a optical D-fibre antenna. One unique advantage of the optical fibre antenna is that it is all-dielectric and it is relatively transparent to the incident electric field. Therefore the optical fibre antenna will not significantly distort or scatter the incident field.","PeriodicalId":391546,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132178909","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}
IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)
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