Even and odd mode CPW‐fed pattern diversity antenna for body centric communication systems.

A patterns diversity slot antenna loaded with a dielectric resonator is presented for on‐body communication systems in 2.45 GHz band. The diversity is achieved by launching even and odd modes on coplanar feed lines resulting in end‐fire and broadside radiation pattern respectively. Loading of dielectric resonator enhances impedance bandwidth and improves isolation between broadside and end‐fire patterns. A common impedance bandwidth of 4% is obtained along with ports isolation of 22 dB. Diversity gain is calculated for three unique on‐body channels and the maximum diversity gain of 8.5 dB is achieved for nonline‐of‐sight on body channel. Large diversity gain and planar geometry makes this antenna suitable for various on‐body communication applications. [ABSTRACT FROM AUTHOR]