期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 5, 期 -, 页码 27-31出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2005.863615
关键词
antenna array feeds; Butler matrix; differential phase shifter; hybrid junctions; multibeam antennas; short slot hybrid; top wall hybrid; waveguide components
Architectures of waveguide Butler matrices, for linear and planar arrays, utilizing both short-slot and top-wall hybrids, yield short path from input to output, minimize losses, save flanges, and reduces network size and weight. Novel three-dimensional (3-D) Butler matrix beamformer for volumetric multibeam from planar array is also presented.
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