发明名称 METHOD FOR CONNECTING A RADIO TRANSMITTER AND A RADIO RECEIVER TO THE SAME ANTENNA, AND A TRANSCEIVER ARRANGEMENT
摘要 <p>The invention relates to a method for connecting a radio transmitter and a radio receiver to the same antenna, and a transceiver arrangement. According to the method, the radio transmitter and receiver operate alternately, typically on a TDMA principle. An electrically controllable switch (12) adjusts the impedance of the receiver (17) such that the impedance is high when the radio transmitter (18) is transmitting a signal and low when the radio receiver (17) is receiving a signal. A transmission line (11) is provided between the transmitter filter (13) and the antenna (10). The transmission line (11) is designed so as to form a high impedance with the transmitter filter (13) for a signal to be received from the antenna (10). The transmission line (11) forms a bent-path filter with the transmitter filter (13) for a signal to be transmitted. The invention allows high transmission powers to be used and reduces both attenuation and intermodulation during transmission.</p>
申请公布号 WO1997044913(A1) 申请公布日期 1997.11.27
申请号 FI1997000289 申请日期 1997.05.16
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