| 摘要 |
A structure of a duplexer for duplex radio equipment has a transmission circuit board loaded with a transmitter section and a transmit filter for filtering a high frequency signal fed from the transmitter section. A reception circuit board physically independent of the transmission circuit board is loaded with a receive filter for filtering a received high frequency signal and a receiver section for receiving the high frequency signal from the receive filter. A connection circuit board mechanically connects the transmission circuit board and reception circuit board and is loaded with a matching circuit for matching the phase of the high frequency signal to be inputted to the receive filter and the phase of the high frequency signal outputted by the transmit filter. Connectors electrically interconnect the transmit filter and receive filter to the matching circuit. |
