| 摘要 |
A balancing network of a wave digital filter type including 3-port pair transforming adaptors (21 to 26) connected in cascade each having capacitor (C) and resistor (R) as constituent elements and performing a filter operation function, wherein note is taken of the fact that there is no reflected wave from each port pair other than the two port pairs for the cascade connection of the transforming adaptors (22, 24, 26) each including resistor (R), that port pair is eliminated, and adjoining transforming adaptors (21, 23, 25) each including capacitor (C) are combined with to form new 3-port pair combined transforming adaptors (41), whereby it becomes possible to realize a filter operation by an amount of operations less than the sum of the amounts of operations by the 3-port pair transforming adaptors (21 to 26).
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