Title :
Butler network extension to any number of antenna ports
Author :
Foster, H. ; Hiatt, R.
Author_Institution :
Univ. of Michigan, Ann Arbor, MI, USA
fDate :
11/1/1970 12:00:00 AM
Abstract :
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.
Keywords :
Antenna array feeds; Antenna arrays; Antenna radiation patterns; Butler matrix; Chebyshev approximation; Dipole antennas; Hybrid junctions; Loaded antennas; Mutual coupling; Planar arrays; Space technology;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1970.1139790
