| 摘要 |
A coupler assembly may include first and second electromagnetic couplers connected together. In some examples, the couplers may be connected in cascade configuration, with at least the second coupler including at least third and fourth couplers connected in tandem configuration. In some examples, a first asymmetric coupler may include a plurality of coupler sections connected in cascade configuration, and a second coupler connected to the first coupler in tandem configuration. In some examples, a direct port of a first coupler section may be conductively connected through a second coupler section to an isolated port of the first coupler section. In some examples, a coupler assembly may include first and second transmission lines having respective conductors electromagnetically coupled in a plurality of serially connected coupler sections, which sections have coupled portions with substantially the same cross-sectional configuration and lengths that are progressively longer or shorter in successive coupled portions. |
