Compact Designs of Waveguide Butler Matrices
Jacob Remez, Roi Carmon
IEEE Antennas and Wireless Propagation Letters
Volume:5 , Issue: 1 , Dec. 2006
27 - 31
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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