| 摘要 |
A first multi-port hybrid coupler is formed by n2n-1 (where n is an integer equal to or greater than 2) hybrid couplers alone, which are divided into n stages, each including 2n-1 hybrid couplers. A signal input to any one of N (=2n) input terminals of the first stage is distributed equally to N output terminals of the nth stage. The N output terminals of the nth stage of the first multi-port hybrid coupler are connected to N amplifiers at the input side thereof, respectively, and the N amplifiers are connected at the output side to a second multi-port hybrid coupler. The second multi-port hybrid coupler is identical in construction with the first multi-port hybrid coupler, but its input terminals and output terminals are reverse from those of the latter and the input terminals of the second multi-port hybrid coupler are connected to the N amplifiers in an order reverse from the order of arrangement of the output terminals of the first multi-port hybrid coupler. |
