| 摘要 |
<p>Apparatus for generating complex composite RF signals comprising a source of unmodulated RF carrier signal (11), means for splitting the RF carrier signal output of the source into equal components (12), separate modulating means (13, 14) to which respective carrier signal components are applied, signal combining means (15) to which the outputs of the modulating means are applied. and separate baseband control signal generating means (211,... 22N) the outputs of which are applied to respective modulating means to effect in-phase and quadrature modulation of the respective carrier signal components. <IMAGE></p> |
