and the second band is 1680~3189 MHz) planar phone antenna with weak ground surface current and stable performances is proposed
which has two resonant paths by eroding a slot on a monopole antenna.The radiation patterns at 2600 MHz of the antenna are still similar to the ones of monopole
and the size of ground plane is compact.Moreover
the antenna has a simple construction with a compact-size of 39mm in width and 13mm in length
and it can be easily fabricated.Simulated and measured results of the design are in a good agreement
so the antenna can be equipped in the system of mini mobile phone.