3×3 Butler matrix and 5×6 Butler matrix

The present invention relates to a 3×3 Butler matrix, comprising a first directional coupler, a second directional coupler, a third directional coupler, a first fixed phase shifter, a second fixed phase shifter and a third fixed phase shifter; and also relates to a 5×6 Butler matrix, comprising a fi...

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Bibliographic Details
Main Author Wu Biqun
Format Patent
LanguageEnglish
Published 10.04.2018
Subjects
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
SELECTING
WAVEGUIDES
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Summary:The present invention relates to a 3×3 Butler matrix, comprising a first directional coupler, a second directional coupler, a third directional coupler, a first fixed phase shifter, a second fixed phase shifter and a third fixed phase shifter; and also relates to a 5×6 Butler matrix, comprising a first 3×3 Butler matrix, a second 3×3 Butler matrix, a fourth directional coupler, a fifth directional coupler, a power divider, a fourth fixed phase shifter and a fifth fixed phase shifter. The 3×3 Butler matrix and the 5×6 Butler matrix provided in the present invention have the features of small size, wide frequency band, low loss, high isolation and stable performance, fill the blank of specific technical schemes about the 3×3 Butler matrix and the 5×6 Butler matrix in the prior art, and have broad application prospects and great value.
Bibliography:Application Number: US201314766980