Periodic metal plate-loaded dielectric slab antenna with broadside radiation

Periodic metal plate-loaded dielectric slab antenna with broadside radiation

Wave guiding properties of a periodic metal plate-loaded dielectric slab structure are investigated for obtaining surface wave antennas with broadside radiation and low voltage standing wave ratio (VSWR) characteristics. A novel technique is proposed in which dielectric phase transformers play an es...

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Veröffentlicht in:IEEE transactions on antennas and propagation 1995-10, Vol.43 (10), p.1076-1081
Hauptverfasser: Debasis Dawn, Yoneyama, T.
Format: Artikel
Sprache:eng
Schlagworte:
Antenna theory
Aperture antennas
Dielectrics
Low voltage
Microwave antennas
Periodic structures
Phase transformers
Reflection
Slabs
Surface waves
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creator Debasis Dawn
Yoneyama, T.
description Wave guiding properties of a periodic metal plate-loaded dielectric slab structure are investigated for obtaining surface wave antennas with broadside radiation and low voltage standing wave ratio (VSWR) characteristics. A novel technique is proposed in which dielectric phase transformers play an essential role for realizing a uniform phase distribution on the radiating aperture which is required to achieve broadside radiation. A quarter-guided wavelength spacing of the metal plates guarantees the suppression of reflections at the input port. On the basis of the theoretical results obtained, two types of antennas have been designed at 10 GHz, one having the exponential aperture distribution, the other the uniform aperture distribution. The overall antenna efficiency of the latter type has been found to be 53%, exhibiting a practical performance at microwave frequencies.< >
doi_str_mv 10.1109/8.467643
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subjects Antenna theory
Aperture antennas
Dielectrics
Low voltage
Microwave antennas
Periodic structures
Phase transformers
Reflection
Slabs
Surface waves
title Periodic metal plate-loaded dielectric slab antenna with broadside radiation
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