| 摘要 |
PURPOSE: An antenna switch module including a coupler and a method for fabricating the same are provided to reduce a total mounting area and improve reliability by mounting a coupler in the inside of a ceramic stacked substrate. CONSTITUTION: An earth plate(100) formed on a P1 substrate(P1) is connected to an earth of a total circuit through a wire printed on the P1 substrate(P1). A line path(200) for forming one terminal of a coupler is formed on a P2 substrate(P2). A line path(300) for forming the other terminal of the coupler is formed on a P3 substrate(P3). The line path(200) formed on the P2 substrate(P2) and the line path(300) formed on the P3 substrate(P3) face to each other in order to form electromagnetic coupling. An earth plate(400) is formed on a P4 substrate(P4). Each terminal of couplers of the P2 substrate(P2) and the P3 substrate(P3) is connected to parts of circuits by connection line paths(202,302).
|
