| 摘要 |
The circuit board includes a first dielectric substrate with a first conductor pattern, which is joined by a dielectric adhesive layer to a second dielectric substrate with a second conductor pattern, the conductor patterns facing each other. The first circuit pattern is designed for circuit component performing a desired function, while the second circuit pattern is has an identical form to the first circuit pattern when laid on top of the first circuit pattern. A ground conductor is arranged on the external surface of the two dielectric substrates A pattern (11a,11b) forming a resonator is formed on a circuit board (11), and an identical pattern (12a,12b) is formed on a second circuit board (12). The two boards are joined via a prepreg (13) so that their conductor patterns are facing each other. An earth conductor is provided on the outer surface of the two circuit boards to form a band-pass filter with a triplate structure. The two patterns (11a,12a) are connected to form the signal input and the two patterns (11b,12b) are connected to form the output. |
