On study of the indoor frequency re-configurable antenna used for 5G Telecommunications

In this letter, the frequency re-configurable antenna element, which could be used for the indoor access antenna array, is studied and designed. It is operating at the 3.4-3.6GHz and 4.8-5.0GHz, which is allowed frequency bands of 5G. In the two reconfigured band, the reflection coefficient is under -14dB, and the gain is 8.6dBi and 10.6dBi in the tow band respectively.