| 摘要 |
<p>The antenna has multiple feed units (10, 10a-10d, 10' a) comprising two transmitting ports (T1, T1a-T1c, T2, T2a-T2c) including same transmission frequency and orthogonal polarizations to each other, and two receiving ports (R1, R1a-R1d, R2, R2a- R2d) having a same reception frequency and orthogonal polarizations to each other, where the reception frequency is different from the transmission frequency. The feed units are clustered by groups of four feeds in directions. Four interconnected transmitting ports form a transmitting beam. Four interconnected receiving ports form a receiving beam.</p> |
