A Novel Compact Reconfigurable Antenna with Tunable Decoupling Frequency

In this paper, a novel compact reconfigurable antenna with high isolation working in wideband is presented. Its decoupling frequency with high isolation ( > 20dB) could be tunable through the varactors. The antenna has a small size (0.25λ 0 ×0.25λ 0 ×0.06λ 0 ) and a wide working band (4.20GHz ~ 5.32GHz, 23.5%). Compared with other decoupled antennas, the antenna structure is simple. Its tunable reconfiguration endows a promising intelligent application in future wireless communication systems.