Popis: |
Active antennas are devices used in diverse applications, among them the mobile devices in which it operates in the range of microwave and millimeter waves. Therefore, they are useful to the modern 5G systems, in which there is the use of antennas based on the integration of active and irradiation elements, developed with compact technologies, presenting smaller dimensions than the traditional passive antennas. They can be projected in order to present a high directivity either, allowing the operation in a wider bandwidth. |