| IP개요 |
The isolation between transmitter and receiver for the radars is ultimately important since the transmitting radar signals can be penetrated the receiver directly in case a bad isolation is formed. This paper describes the isolation between the transceiver and the design of an integrated full duplexer using the phase locked loop (PLL). Although the antenna impedance varies arbitrarily, the PLL tracks the impedance variation in real time, leading to improvement of isolation between the transmitter and the receiver. The full duplexer reduces the transmitter leakage by 3 dB using the balance network along with the PLL compared with that not using the PLL. |
