@inproceedings{ab2eb716c6044555b5eed46929e862c6,
title = "A broadband 8-18GHz 4-input 4-output butler matrix - art. no. 641406",
abstract = "Butler matrices can be used in antenna beam-fori-ning networks to provide a linear phase distribution across the elements of an array. The development of an 8 to 18GHz rnicro-strip implementation of a 4-input 4-output Butler matrix is described. The designed Butler matrix uses March hybrids, Schiffirian phase shifters and wire-bond crossovers integrated on a single 60mm x 70mm alumina substrate.",
author = "Leigh Milner and Michael Parker",
year = "2007",
doi = "10.1117/12.695633",
language = "English",
isbn = "9780819465221",
series = "PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)",
publisher = "SPIE",
pages = "41406--41406",
editor = "SF AlSarawi",
booktitle = "Smart Structures, Devices, and Systems III",
address = "United States",
note = "Conference on Smart Structures, Devices, and Systems III ; Conference date: 11-12-2006 Through 13-12-2006",
}