DUPLEXER FOR SIMULTANEOUS TRANSMIT AND RECEIVE RADAR SYSTEMS
摘要
<p>An enhanced duplexer (1) which includes a combination of high dynamic range (HDR) amplifiers (11, 17) and a naovel signal cancellation circuit topology (15). Return signals from the circulator (3) are fed into the first HDR amplifier (11). A portion of the transmit signal is sampled with a directional coupler (7) and amplified with a second HDR amplifier (17) and then combined with the output of the first HDR amplifier (11) using a second directional coupler (13). The gain and phase of the second io amplifier (17) are adjusted so the leakage signals are canceled (19, 21) to enable a radar system to simultaneously transmit and receive signals to and from an antenna with increased sensitivity of operation.</p>
申请公布号
WO2006023319(A1)
申请公布日期
2006.03.02
申请号
WO2005US28154
申请日期
2005.08.08
申请人
BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS;MEHARRY, DAVID, E.;HEDGES, STEPHEN, A.