期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 2, 期 -, 页码 136-139出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2003.816640
关键词
Antenna synthesis; broad-beam antennas; geometrical optics; leaky-wave antennas (LWAs)
In this work, the feasibility of broad-beam radiation-pattern synthesis through leaky-wave antennas (LWAs) with rectilinear geometry is shown for the first time. The synthesis is based on a geometrical-optics approach and is achieved by a nonstandard tapering of a straight LWA, which involves the variation of both phase and leakage constants of leaky-mode propagating along the structure. Such an approach is an alternative to that based on a curved LWA and allows for a simpler manufacturing and a significant bulk reduction of the structure. The relevant theory is provided together with examples of broad-beam pattern synthesis.
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