fig1 shows a simplified block diagram of a cellular television system . such a system is known from the european patent application no . 0 , 282 , 347 . herein a cellular television system is described . the system comprises an array of similar cells . only one cell cl is indicated in the figure . in order to cover the complete cell cl , a transmitter 1 , located in the centre of the cell cl , is provided with an omnidirectional antenna 15 , e . g . implemented by a small number of quadrant directional radiators . a multiplexed signal is modulated onto a microwave carrier so as to allow a wide variety of signal formats to be combined efficiently . such signals can be fm ( frequency modulation ) video signals with audio sub carriers , digital signals or the like . the band in which the signals are transmitted goes from 27 . 5 ghz to 29 . 5 ghz . the system utilizes relatively low power transmitters so as to allow for frequency reuse in a given geographical area . the receivers 3 in the system are to be supplied with antennas 4 which have a large gain factor in the direction of the transmitter . this allows the transmitted signal power to be as low as possible . an antenna with a large gain factor can , for example , be a microstrip antenna array . fig2 shows in a simplified way the occurrence of multipath fading . the receiver 3 finds itself near a reflective body 2 , e . g . a wall . there is one signal path sp1 , directly from the transmitter 1 . another signal path sp2 goes via the wall to the receiving antenna 4 . due to this there will be a phase difference between the signals coming in via the respective signal paths sp1 and sp2 . depending on the size of this phase difference this can lead thereto , that the respective signals cancel each other or add to each other . in case of multipath fading an interference pattern will be present , consisting of points in which the signals add to each other ( maxima ) and points in which the signals cancel each other ( minima / nulls ). the distance between those points is strongly dependent on the specific situation . of course fig2 shows the occurrence of multipath fading in a simplified way . additional reflective bodies can be present , more signal paths can play a role , etc . furthermore the interference pattern can change rapidly : passing cars in the street , birds , even people moving within the house , all these factors have their influence . when the antenna finds itself in a point of the interference pattern with a minimal strength ( minimum ) the signal reception will be bad . moving the antenna about a wavelength , normally will give a much better reception . fig3 shows a first preferred embodiment of a receiver according to the invention . the receiver comprises a microstrip antenna array 4 . the antenna array comprises antenna elements 5 - 1 . . . 5 - 20 . these elements are patch antennas . as is widely known , they work in the best way when they have a length which is a bit smaller than half a wavelength in free space . when a signal frequency of 29 ghz is used , the length of the antenna elements must be about 6 or 7 mm . the exact length required for the patch antennas depends on the properties of the dielectric material which is used . the antenna elements are arranged in five columns 6 - 1 . . . 6 - 5 of each having four antennas . the distance between the antennas within the column is approximately half a wavelength . the distance between the columns is also about half a wavelength . the antenna is fed by a feeder 7 - 1 . all the columns are fed with the same phase . all the antennas within the columns are also fed with the same phase . the antenna array comprises switching means 8 - 1 , 8 - 2 . the switching means are arranged for switching either column 6 - 1 or column 6 - 5 to the feeder 7 - 1 . when column 6 - 1 is switched to the feeder a normal 4 × 4 microstrip antenna array is obtained , consisting of the elements 5 - 1 to 5 - 16 . this antenna array has a centre point 11 ( indicated by a dot ). when column 6 - 5 is switched to the feeder another normal 4 × 4 microstrip antenna array is obtained , consisting of the elements 5 - 5 to 5 - 20 . this antenna array has a centre point 12 ( indicated by a cross ). so , only a spatial shift of the antenna array is obtained . its radiation pattern is not changed by the switching action . the receiver comprises furthermore down converter means 10 and detection means 9 . the detection means are arranged for detecting the occurrence of bad signal reception due to multipath fading in a well known way . they calculate the ratio between the signal and the out of band noise . when this ratio falls below a certain threshold value , the presence of multipath fading is assumed . the detection means then switch the switching means to their other state . normally this will result in a much better reception due to the spatial shift of about a wavelength between the centre points 11 and 12 . the down converter means convert the 29 ghz received signal into a signal with a much lower frequency which is transferred to a tv . the switching means can be arranged in any suitable way . for example , pin - diodes can be used . fig4 shows a second embodiment of a receiver according to the invention . the receiver 3 comprises an antenna array 4 consisting of five antenna elements 5 - 21 . . . 5 - 25 fed by a feeder 7 - 2 . the switching means 8 - 1 , 8 - 2 are arranged to switch either the first antenna element 5 - 21 or the fifth antenna element 5 - 25 to the feeder 7 . when antenna element 5 - 21 is switched to the feeder an antenna array is obtained consisting of the elements 5 - 21 to 5 - 24 . this antenna array has a centre point 31 ( indicated by a dot ). when antenna element 5 - 25 is switched to the feeder a microstrip antenna array is obtained consisting of the elements 5 - 22 to 5 - 25 . this antenna array has a centre point 32 ( indicated by a cross ). it will be understood that the embodiments shown are only meant as examples . the invention is not limited to receivers in a cellular television system , but it can be applied to all kind of receivers of radio signals . also the implementation of the antenna array is not essential : e . g . the antenna elements can be dipoles instead of patch antennas , arrays with different numbers of columns can be used , three dimensional arrays can be used etc . those modifications will be apparent to persons skilled in the art . the distinguishing feature of the invention is : spatial shifting within an antenna array by switching between antenna elements , without changing the radiation pattern of the array .