Abstract: Described herein are technologies that facilitate wireless communication with highly-isolated, dual-port antenna system. More particularly, an example antenna system that implements the technology includes a complementary pair of physically co-located antennas for signal transmission and/or reception. More particularly still, an example implementation of the disclosed technology is an antenna system that utilizes a monopole antenna symmetrically and physically co-located with a slot antenna in a shared antenna plane with a simple feed structure.