| 摘要 |
<p>A redundant linear power amplifier (LPA) system is provided for minimizing the loss of power output during malfunction conditions. The redundant LPA system includes a transmitter (102) with redundant LPA units (110, 112) for providing spatial combining redundancy and transmitter polarization diversity. Each LPA unit (110, 112) receives an input signal. The output from one of the LPA units (110) is connected to an antenna (120) and the output from the second LPA unit (112) is phase shifted (117) and then connected to a second antenna (122). Alternatively, the outputs from the LPA units (110, 112) are input into a quadrature hybrid (126) and the output (128) from a first port (131) of the quadrature hybrid (126) is connected to the first antenna (120) and the output (130) from a second quadrature hybrid port (133) is phase shifted (117) and connected to the second antenna (122).</p> |
