| 摘要 |
<p>An antenna system for a transmitter, said antenna system comprising an array of antennas, said array being controllable to transmit a signal over part or all of a coverage area of said transmitter; an amplifier coupled to each antenna, said amplifier being arranged to receive one or more signals to be transmitted by the respective antenna; and a further amplifier connected to at least one of said antennas, said further amplifier arranged to receive a signal to be transmitted over substantially all of the coverage area of said transmitter.</p> |
