| 摘要 |
An electrical circuit (500) includes an input means (503) for providing an input signal, an output means for providing an output signal, and a transmission line device (421) disposed substantially between the input means (503) and the output means. The transmission line device inludes a first ground plane (505) disposed on a first dielectric substrate (502), and a first conductive layer (421-1) disposed, and enclosing a first area, on a second dielectric substrate (506) that is positioned substantially adjacent to the first dielectric substrate (502). The transmission line device (421) further includes a second conductive layer (421-2) that encloses an area corresponding to the first area on a first major surface of a third dielectric substrate (504) that is positioned substantially adjacent to the second dielectric substrate (506).
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