Surface-wave launchers for beam steering and application to planar leaky-wave antennas

Symon Podilchak; Al P. Freundorfer; Yahia M. M. Antar

doi:10.1109/TAP.2008.2011248

Surface-wave launchers for beam steering and application to planar leaky-wave antennas

Symon Podilchak, Al P. Freundorfer, Yahia M. M. Antar

Research output: Contribution to journal › Article › peer-review

66 Citations (Scopus)

Abstract

A linear array of surface-wave launchers (SWLs) is presented for surface-wave (SW) beam steering on a grounded dielectric slab (GDS). Specifically, a two-element array of directive Yagi-Uda like SWL antennas (operating between 21-24 GHz) is investigated. By varying the relative phase difference between SWL elements, the excited SW field distribution can be steered. In addition, a six-element linear array of SWLs with nonuniform weighting is also presented. If metallic gratings are placed on top of the GDS, the bound SW mode can be transformed into a radiated leaky-wave (LW) mode and directive beam patterns can be generated in the far field. A specific elliptical grating configuration is also investigated demonstrating single frequency cylindrical-sector LW beam steering. These slotted SWL arrays can be useful for novel SW beam scanning designs, millimeter wave power distribution systems and new LW antennas.

Original language	English
Pages (from-to)	355-363
Number of pages	9
Journal	IEEE Transactions on Antennas and Propagation
Volume	57
Issue number	2
DOIs	https://doi.org/10.1109/TAP.2008.2011248
Publication status	Published - Feb 2009

Keywords

Leaky-wave (LW)
leaky-wave antenna (LWA)
surface-wave (SW)
surface-wave launcher (SWL)
RADIATION
ARRAYS

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Cite this

@article{121a2a6874354ac4bdbe3cb45cad41d4,

title = "Surface-wave launchers for beam steering and application to planar leaky-wave antennas",

abstract = "A linear array of surface-wave launchers (SWLs) is presented for surface-wave (SW) beam steering on a grounded dielectric slab (GDS). Specifically, a two-element array of directive Yagi-Uda like SWL antennas (operating between 21-24 GHz) is investigated. By varying the relative phase difference between SWL elements, the excited SW field distribution can be steered. In addition, a six-element linear array of SWLs with nonuniform weighting is also presented. If metallic gratings are placed on top of the GDS, the bound SW mode can be transformed into a radiated leaky-wave (LW) mode and directive beam patterns can be generated in the far field. A specific elliptical grating configuration is also investigated demonstrating single frequency cylindrical-sector LW beam steering. These slotted SWL arrays can be useful for novel SW beam scanning designs, millimeter wave power distribution systems and new LW antennas.",

keywords = "Leaky-wave (LW), leaky-wave antenna (LWA), surface-wave (SW), surface-wave launcher (SWL), RADIATION, ARRAYS",

author = "Symon Podilchak and Freundorfer, {Al P.} and Antar, {Yahia M. M.}",

year = "2009",

month = feb,

doi = "10.1109/TAP.2008.2011248",

language = "English",

volume = "57",

pages = "355--363",

journal = "IEEE Transactions on Antennas and Propagation",

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publisher = "IEEE",

number = "2",

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TY - JOUR

T1 - Surface-wave launchers for beam steering and application to planar leaky-wave antennas

AU - Podilchak, Symon

AU - Freundorfer, Al P.

AU - Antar, Yahia M. M.

PY - 2009/2

Y1 - 2009/2

N2 - A linear array of surface-wave launchers (SWLs) is presented for surface-wave (SW) beam steering on a grounded dielectric slab (GDS). Specifically, a two-element array of directive Yagi-Uda like SWL antennas (operating between 21-24 GHz) is investigated. By varying the relative phase difference between SWL elements, the excited SW field distribution can be steered. In addition, a six-element linear array of SWLs with nonuniform weighting is also presented. If metallic gratings are placed on top of the GDS, the bound SW mode can be transformed into a radiated leaky-wave (LW) mode and directive beam patterns can be generated in the far field. A specific elliptical grating configuration is also investigated demonstrating single frequency cylindrical-sector LW beam steering. These slotted SWL arrays can be useful for novel SW beam scanning designs, millimeter wave power distribution systems and new LW antennas.

AB - A linear array of surface-wave launchers (SWLs) is presented for surface-wave (SW) beam steering on a grounded dielectric slab (GDS). Specifically, a two-element array of directive Yagi-Uda like SWL antennas (operating between 21-24 GHz) is investigated. By varying the relative phase difference between SWL elements, the excited SW field distribution can be steered. In addition, a six-element linear array of SWLs with nonuniform weighting is also presented. If metallic gratings are placed on top of the GDS, the bound SW mode can be transformed into a radiated leaky-wave (LW) mode and directive beam patterns can be generated in the far field. A specific elliptical grating configuration is also investigated demonstrating single frequency cylindrical-sector LW beam steering. These slotted SWL arrays can be useful for novel SW beam scanning designs, millimeter wave power distribution systems and new LW antennas.

KW - Leaky-wave (LW)

KW - leaky-wave antenna (LWA)

KW - surface-wave (SW)

KW - surface-wave launcher (SWL)

KW - RADIATION

KW - ARRAYS

U2 - 10.1109/TAP.2008.2011248

DO - 10.1109/TAP.2008.2011248

M3 - Article

SN - 0018-926X

VL - 57

SP - 355

EP - 363

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 2

ER -

Surface-wave launchers for beam steering and application to planar leaky-wave antennas

Abstract

Keywords

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