| 摘要 |
The transmitter and/or receiver module comprises a dipole antenna ( 28 ) and a matching circuit ( 26 ) matching the output impedance of the module to the antenna impedance, a switch circuit ( 24 ) for switching between received and transmitted signals, a power amplifier ( 30 ) for amplifying the transmitted signal, and a low-noise receiver amplifier ( 32 ) for amplifying the received signal, wherein the matching circuit ( 26 ) and the antenna ( 28 ) are designed to provide a bandpass filter function for the module. Differential signals are provided from the transmitter power amplifier ( 30 ) to the antenna ( 28 ) and/or from the antenna ( 28 ) to the receiver amplifier ( 32 ) without conversion of the differential signals to single-ended signals. |
