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High-Efficiency, Dielectric Slab Leaky-Wave Antennas

Tasuku TESHIROGI, Yuki KAWAHARA, Aya YAMAMOTO, Yuji SEKINE, Nobuyuki BABA, Masanao KOBAYASHI

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Summary :

A novel millimeter-wave planar leaky-wave antenna is described which consists of a dielectric slab loaded by metallic periodic strips. Several new techniques are discussed, such as an air-gapped dielectric waveguide to reduce conductor loss of the ground plane, a canceling array to suppress the reflections in the waveguide due to the metallic strips, a compact feed, and a simple polarizer. By applying these new techniques, we achieved an excellent antenna efficiency, exceeding 70% at 76 GHz band for both vertical and 45-degree inclined linear polarizations.

Publication
IEICE TRANSACTIONS on Communications Vol.E84-B No.9 pp.2387-2394
Publication Date
2001/09/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Innovation in Antennas and Propagation for Expanding Radio Systems)
Category
Millimeter-Wave Antennas

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