Radiation of Logarithmic Spiral Antennas in the Presence of Dense Dielectric Lenses
In this paper, the performance of logarithmic spiral antennas as feeds of dense dielectric lens are investigated in detail. The performances are evaluated in terms of clean symmetric radiation patterns, high polarization purity, antenna efficiency, and radiation dispersivity. A logarithmic spiral an...
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| Autor*in: |
Garufo, Alessandro [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: IEEE transactions on antennas and propagation - New York, NY : IEEE, 1963, 64(2016), 10, Seite 4168-4177 |
|---|---|
| Übergeordnetes Werk: |
volume:64 ; year:2016 ; number:10 ; pages:4168-4177 |
| Links: |
|---|
| DOI / URN: |
10.1109/TAP.2016.2593744 |
|---|
| Katalog-ID: |
OLC1984855271 |
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| 520 | |a In this paper, the performance of logarithmic spiral antennas as feeds of dense dielectric lens are investigated in detail. The performances are evaluated in terms of clean symmetric radiation patterns, high polarization purity, antenna efficiency, and radiation dispersivity. A logarithmic spiral antenna placed in the dielectric-air interface can provide high aperture efficiencies over large bandwidths if coupled to a synthesized elliptical lens. The use of an air gap increases the directivity of the spiral radiation inside the dielectric allowing for lens directive patterns without sidelobes and reducing the dispersivity of the radiated pulse. The directivity enhancement of the fields inside the dielectric is validated by the measurement of a prototype. The highest frequency at which these antennas can be fed by a planar microstrip line is limited by the thickness of the microstrip substrate. | ||
| 650 | 4 | |a lens antenna | |
| 650 | 4 | |a Spirals | |
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| 650 | 4 | |a ultrawideband antenna | |
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| 700 | 1 | |a Llombart, Nuria |4 oth | |
| 700 | 1 | |a Neto, Andrea |4 oth | |
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10.1109/TAP.2016.2593744 doi PQ20161201 (DE-627)OLC1984855271 (DE-599)GBVOLC1984855271 (PRQ)c1062-518974e906006b6c4027ad9af966839dfedb2cd2d8324c720478f1dbb0342f850 (KEY)0068432520160000064001004168radiationoflogarithmicspiralantennasinthepresenceo DE-627 ger DE-627 rakwb eng 620 DNB Garufo, Alessandro verfasserin aut Radiation of Logarithmic Spiral Antennas in the Presence of Dense Dielectric Lenses 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In this paper, the performance of logarithmic spiral antennas as feeds of dense dielectric lens are investigated in detail. The performances are evaluated in terms of clean symmetric radiation patterns, high polarization purity, antenna efficiency, and radiation dispersivity. A logarithmic spiral antenna placed in the dielectric-air interface can provide high aperture efficiencies over large bandwidths if coupled to a synthesized elliptical lens. The use of an air gap increases the directivity of the spiral radiation inside the dielectric allowing for lens directive patterns without sidelobes and reducing the dispersivity of the radiated pulse. The directivity enhancement of the fields inside the dielectric is validated by the measurement of a prototype. The highest frequency at which these antennas can be fed by a planar microstrip line is limited by the thickness of the microstrip substrate. lens antenna Spirals spiral antenna Lenses leaky-wave antenna Antenna feeds Geometry Dispersion ultrawideband antenna Dielectrics Llombart, Nuria oth Neto, Andrea oth Enthalten in IEEE transactions on antennas and propagation New York, NY : IEEE, 1963 64(2016), 10, Seite 4168-4177 (DE-627)129547239 (DE-600)218496-5 (DE-576)014998114 0018-926X nnns volume:64 year:2016 number:10 pages:4168-4177 http://dx.doi.org/10.1109/TAP.2016.2593744 Volltext http://ieeexplore.ieee.org/document/7518607 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_70 GBV_ILN_201 AR 64 2016 10 4168-4177 |
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10.1109/TAP.2016.2593744 doi PQ20161201 (DE-627)OLC1984855271 (DE-599)GBVOLC1984855271 (PRQ)c1062-518974e906006b6c4027ad9af966839dfedb2cd2d8324c720478f1dbb0342f850 (KEY)0068432520160000064001004168radiationoflogarithmicspiralantennasinthepresenceo DE-627 ger DE-627 rakwb eng 620 DNB Garufo, Alessandro verfasserin aut Radiation of Logarithmic Spiral Antennas in the Presence of Dense Dielectric Lenses 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In this paper, the performance of logarithmic spiral antennas as feeds of dense dielectric lens are investigated in detail. The performances are evaluated in terms of clean symmetric radiation patterns, high polarization purity, antenna efficiency, and radiation dispersivity. A logarithmic spiral antenna placed in the dielectric-air interface can provide high aperture efficiencies over large bandwidths if coupled to a synthesized elliptical lens. The use of an air gap increases the directivity of the spiral radiation inside the dielectric allowing for lens directive patterns without sidelobes and reducing the dispersivity of the radiated pulse. The directivity enhancement of the fields inside the dielectric is validated by the measurement of a prototype. The highest frequency at which these antennas can be fed by a planar microstrip line is limited by the thickness of the microstrip substrate. lens antenna Spirals spiral antenna Lenses leaky-wave antenna Antenna feeds Geometry Dispersion ultrawideband antenna Dielectrics Llombart, Nuria oth Neto, Andrea oth Enthalten in IEEE transactions on antennas and propagation New York, NY : IEEE, 1963 64(2016), 10, Seite 4168-4177 (DE-627)129547239 (DE-600)218496-5 (DE-576)014998114 0018-926X nnns volume:64 year:2016 number:10 pages:4168-4177 http://dx.doi.org/10.1109/TAP.2016.2593744 Volltext http://ieeexplore.ieee.org/document/7518607 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_70 GBV_ILN_201 AR 64 2016 10 4168-4177 |
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10.1109/TAP.2016.2593744 doi PQ20161201 (DE-627)OLC1984855271 (DE-599)GBVOLC1984855271 (PRQ)c1062-518974e906006b6c4027ad9af966839dfedb2cd2d8324c720478f1dbb0342f850 (KEY)0068432520160000064001004168radiationoflogarithmicspiralantennasinthepresenceo DE-627 ger DE-627 rakwb eng 620 DNB Garufo, Alessandro verfasserin aut Radiation of Logarithmic Spiral Antennas in the Presence of Dense Dielectric Lenses 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In this paper, the performance of logarithmic spiral antennas as feeds of dense dielectric lens are investigated in detail. The performances are evaluated in terms of clean symmetric radiation patterns, high polarization purity, antenna efficiency, and radiation dispersivity. A logarithmic spiral antenna placed in the dielectric-air interface can provide high aperture efficiencies over large bandwidths if coupled to a synthesized elliptical lens. The use of an air gap increases the directivity of the spiral radiation inside the dielectric allowing for lens directive patterns without sidelobes and reducing the dispersivity of the radiated pulse. The directivity enhancement of the fields inside the dielectric is validated by the measurement of a prototype. The highest frequency at which these antennas can be fed by a planar microstrip line is limited by the thickness of the microstrip substrate. lens antenna Spirals spiral antenna Lenses leaky-wave antenna Antenna feeds Geometry Dispersion ultrawideband antenna Dielectrics Llombart, Nuria oth Neto, Andrea oth Enthalten in IEEE transactions on antennas and propagation New York, NY : IEEE, 1963 64(2016), 10, Seite 4168-4177 (DE-627)129547239 (DE-600)218496-5 (DE-576)014998114 0018-926X nnns volume:64 year:2016 number:10 pages:4168-4177 http://dx.doi.org/10.1109/TAP.2016.2593744 Volltext http://ieeexplore.ieee.org/document/7518607 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_70 GBV_ILN_201 AR 64 2016 10 4168-4177 |
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10.1109/TAP.2016.2593744 doi PQ20161201 (DE-627)OLC1984855271 (DE-599)GBVOLC1984855271 (PRQ)c1062-518974e906006b6c4027ad9af966839dfedb2cd2d8324c720478f1dbb0342f850 (KEY)0068432520160000064001004168radiationoflogarithmicspiralantennasinthepresenceo DE-627 ger DE-627 rakwb eng 620 DNB Garufo, Alessandro verfasserin aut Radiation of Logarithmic Spiral Antennas in the Presence of Dense Dielectric Lenses 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In this paper, the performance of logarithmic spiral antennas as feeds of dense dielectric lens are investigated in detail. The performances are evaluated in terms of clean symmetric radiation patterns, high polarization purity, antenna efficiency, and radiation dispersivity. A logarithmic spiral antenna placed in the dielectric-air interface can provide high aperture efficiencies over large bandwidths if coupled to a synthesized elliptical lens. The use of an air gap increases the directivity of the spiral radiation inside the dielectric allowing for lens directive patterns without sidelobes and reducing the dispersivity of the radiated pulse. The directivity enhancement of the fields inside the dielectric is validated by the measurement of a prototype. The highest frequency at which these antennas can be fed by a planar microstrip line is limited by the thickness of the microstrip substrate. lens antenna Spirals spiral antenna Lenses leaky-wave antenna Antenna feeds Geometry Dispersion ultrawideband antenna Dielectrics Llombart, Nuria oth Neto, Andrea oth Enthalten in IEEE transactions on antennas and propagation New York, NY : IEEE, 1963 64(2016), 10, Seite 4168-4177 (DE-627)129547239 (DE-600)218496-5 (DE-576)014998114 0018-926X nnns volume:64 year:2016 number:10 pages:4168-4177 http://dx.doi.org/10.1109/TAP.2016.2593744 Volltext http://ieeexplore.ieee.org/document/7518607 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_70 GBV_ILN_201 AR 64 2016 10 4168-4177 |
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10.1109/TAP.2016.2593744 doi PQ20161201 (DE-627)OLC1984855271 (DE-599)GBVOLC1984855271 (PRQ)c1062-518974e906006b6c4027ad9af966839dfedb2cd2d8324c720478f1dbb0342f850 (KEY)0068432520160000064001004168radiationoflogarithmicspiralantennasinthepresenceo DE-627 ger DE-627 rakwb eng 620 DNB Garufo, Alessandro verfasserin aut Radiation of Logarithmic Spiral Antennas in the Presence of Dense Dielectric Lenses 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In this paper, the performance of logarithmic spiral antennas as feeds of dense dielectric lens are investigated in detail. The performances are evaluated in terms of clean symmetric radiation patterns, high polarization purity, antenna efficiency, and radiation dispersivity. A logarithmic spiral antenna placed in the dielectric-air interface can provide high aperture efficiencies over large bandwidths if coupled to a synthesized elliptical lens. The use of an air gap increases the directivity of the spiral radiation inside the dielectric allowing for lens directive patterns without sidelobes and reducing the dispersivity of the radiated pulse. The directivity enhancement of the fields inside the dielectric is validated by the measurement of a prototype. The highest frequency at which these antennas can be fed by a planar microstrip line is limited by the thickness of the microstrip substrate. lens antenna Spirals spiral antenna Lenses leaky-wave antenna Antenna feeds Geometry Dispersion ultrawideband antenna Dielectrics Llombart, Nuria oth Neto, Andrea oth Enthalten in IEEE transactions on antennas and propagation New York, NY : IEEE, 1963 64(2016), 10, Seite 4168-4177 (DE-627)129547239 (DE-600)218496-5 (DE-576)014998114 0018-926X nnns volume:64 year:2016 number:10 pages:4168-4177 http://dx.doi.org/10.1109/TAP.2016.2593744 Volltext http://ieeexplore.ieee.org/document/7518607 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_70 GBV_ILN_201 AR 64 2016 10 4168-4177 |
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Radiation of Logarithmic Spiral Antennas in the Presence of Dense Dielectric Lenses |
| abstract |
In this paper, the performance of logarithmic spiral antennas as feeds of dense dielectric lens are investigated in detail. The performances are evaluated in terms of clean symmetric radiation patterns, high polarization purity, antenna efficiency, and radiation dispersivity. A logarithmic spiral antenna placed in the dielectric-air interface can provide high aperture efficiencies over large bandwidths if coupled to a synthesized elliptical lens. The use of an air gap increases the directivity of the spiral radiation inside the dielectric allowing for lens directive patterns without sidelobes and reducing the dispersivity of the radiated pulse. The directivity enhancement of the fields inside the dielectric is validated by the measurement of a prototype. The highest frequency at which these antennas can be fed by a planar microstrip line is limited by the thickness of the microstrip substrate. |
| abstractGer |
In this paper, the performance of logarithmic spiral antennas as feeds of dense dielectric lens are investigated in detail. The performances are evaluated in terms of clean symmetric radiation patterns, high polarization purity, antenna efficiency, and radiation dispersivity. A logarithmic spiral antenna placed in the dielectric-air interface can provide high aperture efficiencies over large bandwidths if coupled to a synthesized elliptical lens. The use of an air gap increases the directivity of the spiral radiation inside the dielectric allowing for lens directive patterns without sidelobes and reducing the dispersivity of the radiated pulse. The directivity enhancement of the fields inside the dielectric is validated by the measurement of a prototype. The highest frequency at which these antennas can be fed by a planar microstrip line is limited by the thickness of the microstrip substrate. |
| abstract_unstemmed |
In this paper, the performance of logarithmic spiral antennas as feeds of dense dielectric lens are investigated in detail. The performances are evaluated in terms of clean symmetric radiation patterns, high polarization purity, antenna efficiency, and radiation dispersivity. A logarithmic spiral antenna placed in the dielectric-air interface can provide high aperture efficiencies over large bandwidths if coupled to a synthesized elliptical lens. The use of an air gap increases the directivity of the spiral radiation inside the dielectric allowing for lens directive patterns without sidelobes and reducing the dispersivity of the radiated pulse. The directivity enhancement of the fields inside the dielectric is validated by the measurement of a prototype. The highest frequency at which these antennas can be fed by a planar microstrip line is limited by the thickness of the microstrip substrate. |
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GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_70 GBV_ILN_201 |
| container_issue |
10 |
| title_short |
Radiation of Logarithmic Spiral Antennas in the Presence of Dense Dielectric Lenses |
| url |
http://dx.doi.org/10.1109/TAP.2016.2593744 http://ieeexplore.ieee.org/document/7518607 |
| remote_bool |
false |
| author2 |
Llombart, Nuria Neto, Andrea |
| author2Str |
Llombart, Nuria Neto, Andrea |
| ppnlink |
129547239 |
| mediatype_str_mv |
n |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| author2_role |
oth oth |
| doi_str |
10.1109/TAP.2016.2593744 |
| up_date |
2024-07-04T01:39:05.294Z |
| _version_ |
1803610641183801345 |
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7.398117 |