Wideband High-Isolation Antenna Array for in-Band Full-Duplex Radios

In this article a wide-band high-isolation antenna with operating frequency of 1.85 -2.55 GHz is presented. This design consist of co-located TX and RX antenna arrays at different angles with absorbing material between them to get the high isolation of -75dB over the fractional bandwidth of 31.8%. This antenna array can be useful for GSM-1900, Wi-Fi, LTE bands and simultaneous transmit and receive applications in several wireless communication bands.