| 摘要 |
The invention relates to a transceiver for HF signals, comprising an antenna (A), a transmitter (S), and a receiver (E), and a device (R1) for switching between the transmitter (S) and receiver (E), wherein a first directional coupler (R1) is switched between the transmitter (S) and the receiver (E) and the antenna (A), wherein a first input gate (11) of the first directional coupler (R1) is connected to the transmitter (S), a second input gate (12) of the first directional coupler (R1) is connected to the antenna (A), a first output gate (14) of the first directional coupler (R1) is connected to the receiver (E), and a second output gate (13) of the first directional coupler (R1) is connected to a first detector (D1), wherein a second directional coupler (R2) is switched between the first output gate (14) of the first directional coupler (R1) and the receiver (E), wherein the first output gate (14) of the first directional coupler (R1) is connected to the first input gate (21) of the second directional coupler (R2), the second input gate (22) of the second directional coupler (R2) is connected to the receiver (E), the first output gate (23) of the second directional coupler (R2) is connected to a terminating resistor (RR), and the second output gate (24) of the second directional coupler (R2) is connected to a second detector (D2). |
