| 摘要 |
<p>A beam forming network for a multielement antenna array includes a sum pattern network (106, 108) for generating signal weights corresponding to a sum antenna pattern having omnidirectional side lobes and a difference pattern network (110) for generating signal weights corresponding to a difference antenna pattern with omnidirectional side lobes. Means (103, 104) are provided to couple energy from the difference pattern network (110) to only a portion of the sum pattern network (108). The signal weights are split by signal splitters (112, 114, 116, 118) and delivered in pairs to output terminals (120-1 to 120-8), one of which (120-8) is terminated in its characteristic impedance (120-8a).</p> |
