| 摘要 |
In an antenna combining module, coupling of an inductor and individual signal lines provided in a matching circuit is prevented and minimized and isolation of lines from one another and communication performance are improved. The antenna combining module includes a duplexer DUP and a multilayer substrate. The multilayer substrate includes a reception signal line, a transmission signal line, an antenna common line, a matching line and a ground line. A wiring electrode for an inductor is inserted into the matching line from the mounting electrode for grounding up to the position where it combines with the antenna common line. The wiring electrode for the inductor wraps around the outside of a via hole filled with a conductive material of the antenna common line. The ground line is arranged between the wiring electrode for the inductor and the reception signal line, and the transmission signal line. |
