Archivio Istituzionale della RicercaA planar antenna that utilize surface waves (SWs) for leaky wave (LW) excitation is investigated. Specifically, a surface-wave launcher (SWL) is employed to excite cylindrical SWs which are bound to a grounded dielectric slab (GDS). By the addition of a grid of width-modulated printed strips, a high impedance surface (HIS) can be realized, providing appropriate conditions for LW radiation. A planar metallic grating lens is also included in the design of the antenna to achieve in phase leakage along the aperture. Far field beam pattern results suggest one-sided beam scanning between 22 and 24 GHz with reflection losses below 10 dB and gain values of 8.7 dBi at broadside. Such a printed or planar low-cost and low-profile LWA may be advantageous for radar systems and satellite communications. © 2010 IEEE.
Modulated strip-line leaky-wave antenna using a printed grating lens and a surface-wave source / S. K., Podilchak; Matekovits, Ladislau; K., Esselle; Freundorfer, A. l. P.; Y. M. M., Antar. - (2010). (Intervento presentato al convegno Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference (ANTEM-AMEREM), 2010 14th International Symposium on tenutosi a Ottawa, ON nel 2010) [10.1109/ANTEM.2010.5552488].
Modulated strip-line leaky-wave antenna using a printed grating lens and a surface-wave source
MATEKOVITS, Ladislau;
2010
Abstract
A planar antenna that utilize surface waves (SWs) for leaky wave (LW) excitation is investigated. Specifically, a surface-wave launcher (SWL) is employed to excite cylindrical SWs which are bound to a grounded dielectric slab (GDS). By the addition of a grid of width-modulated printed strips, a high impedance surface (HIS) can be realized, providing appropriate conditions for LW radiation. A planar metallic grating lens is also included in the design of the antenna to achieve in phase leakage along the aperture. Far field beam pattern results suggest one-sided beam scanning between 22 and 24 GHz with reflection losses below 10 dB and gain values of 8.7 dBi at broadside. Such a printed or planar low-cost and low-profile LWA may be advantageous for radar systems and satellite communications. © 2010 IEEE.
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https://hdl.handle.net/11583/2480413
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