BUTLER MATRIX

摘要

PURPOSE: A Butler matrix is provided to stably maintain amplitude and phase between the transmission paths. CONSTITUTION: Input couplers(21,22) are arranged in an input end in order to output input signal to a plurality of paths. Output couplers(23,24) output an output signal to the plurality of the paths by receiving the signal from the input couplers. A separation coupler(31) is formed on a crossed path including an intersection area in order to divide the signals transmitted through different transmission paths. A compensation coupler(33) is formed on a path except for the crossed path in order to compensate for a difference between the phase and the signal transmitted through the crossed path. [Reference numerals] (AA) Input; (BB) Output;