Design of continuous long slot leaky-wave antenna for millimeter wave application

A simple and efficient design scheme of the continuous long slot leaky-wave antenna is developed. The key steps involved in the scheme are summarized. First, the cut-off frequencies of slot waveguides with different slot offsets are obtained by 3D finite-difference time-domain (FDTD) method. Second,...

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Bibliographic Details
Published in:Journal of systems engineering and electronics 2007-12, Vol.18 (4), p.721-725
Main Authors: Shanwei, Lü, Yan, Zhang, Juan, Liu, Jiangling, Zhang
Format: Article
Language:English
Subjects:
continuous long slot
finite-difference time-domain
leaky-wave antenna
waveguide
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Summary:A simple and efficient design scheme of the continuous long slot leaky-wave antenna is developed. The key steps involved in the scheme are summarized. First, the cut-off frequencies of slot waveguides with different slot offsets are obtained by 3D finite-difference time-domain (FDTD) method. Second, the attenuation function α ra is estimated by the aperture distribution, and the attenuation function α rs is determined by the slot radiation. Finally, the attenuation function α ra is combined with the attenuation function α rs by the coefficient K. And an example in Ka band is presented. Moreover, the return loss of the E-plane Tee-junction (ET) and the radiation pattern of leaky-wave antenna are simulated. The scheme is verified by comparing with the experimental result.
ISSN:1004-4132
1004-4132
DOI:10.1016/S1004-4132(08)60010-9