| 摘要 |
The present invention relates to an arrangement at transmission of a number of signals each having a frequency component, between a base station unit and an antenna arrangement having a number of radiation element. The base station unit includes a combiner unit in which signals containing a frequency component are combined to a multi-frequency signal which is transmitted to the antenna arrangement (20). This includes a power dividing unit (3) in which the multi-frequency signal is divided into a number of, preferably similar multi-frequency subsignals and a number of controllable filter arrangements (41, . . . , 4n) for extracting a number of signals essentially consisting of a frequency from multi-frequency subsignals. Moreover, the antenna arrangement includes a number of amplification devices (51, . . , 5n), in which single-frequency signals are amplified for feeding to a number of radiation elements (61, . . . , 6n).
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