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Butler network extension to any number of antenna ports

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2 Author(s)
H. Foster ; Univ. of Michigan, Ann Arbor, MI, USA ; R. Hiatt

The addition of particular hybrid junctions to a conventional Butler network can increase the number of antenna ports from an integral power of 2 to any number. The resulting extended network produces greater flexibility in the relationship between the number of simultaneous beams and the radiation pattern.

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:18 ,  Issue: 6 )