the problem that has been solved by the technologists of khwaja nasiruddin tusi university by makingd antennas. for this reason. it is called hybrid, which supports different generations of cell phones , from generation 2 to generation 5, i.e. 3g and 5g. in the construction of hybrid antennas , molecular-sized composites are used, the result of which is the strengthening of telecommunication waves. each of these elements, whose shape is different, is supposed to be one a part for us. this is why we come to cover the body. we put all of these in a tray. when they get close to each other, a problem occurs, that is , the antenna that is above these antennas, or the lower antennas, can cause interference in this antenna. well, alhamdulillah, we have successfully completed this path once, thanks to god. in this new product, the last four generations of antennas are combined in one antenna, which is the result of maximum coverage and increased speed. below, in fact, the van is 850, 900 mhz. it is only on the work below this antenna that we have phase shifters that we can actually use. the