An antenna arrangement is described. The antenna arrangement comprises an antenna array that includes a first antenna element having a first feed point, and a second antenna element having a second feed point. The antenna arrangement further comprises a signal processing device configured to receive an input signal (Sin), obtain a first complex weight (w1), obtain a second complex weight (w2), generate a first feed signal (a1) based on the input signal (Sin) and the first complex weight (w1), generate a second feed signal (a2) based on the input signal (Sin) and the second complex weight (w2), provide the first feed signal (a1) to the first feed point, and provide the second feed signal (a2) to the second feed point so as to control the frequency characteristic of the antenna array. A method for such an antenna arrangement is also described.