| 摘要 |
The invention refers to a method for enhancing the ratio between the main lobe ( 5 ) and grating lobes ( 7 ) in an antenna array ( 1 ) comprising a number of n antenna elements ( 2 ). The method comprises the steps of; receiving analog signals on a number of m antenna array ( 1 ) elements ( 2 ); producing a radiation diagram for the array ( 1 ) from the values in the signals. The method is characterised in that a number of antenna elements ( 2 ') are switched off or reduced during different times and that the corresponding radiation diagrams for the different times are added to each other such that a sum radiation diagram is produced. The invention also refers to an antenna array system comprising means for performing the method.
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