| 摘要 |
<p>A phasing receiver comprises mixing means (16, 18, 20, 22) for frequency converting an input signal to quadrature related low IF signals (I, Q). The low IF signals are applied to a polyphase filter (24) which functions as a low pass and an adjacent channel rejection filter. Means (Figures 3 to 5 - not shown) for fine adjustment of the phase and/or amplitude of the input signals are provided for improving the image rejection due to mismatches in an input stage of the polyphase filter (24).</p> |
