A design of two wideband antennas sharing one aperture is proposed.One antenna consists of a rectangle impedance loaded monopole
an inverse "L" shape impedance loaded monopole and matching network
which coves 30-600MHz (VSWR <3)and possesses a band-rejection characteristic at 86-110MHz.The other antenna is an open form sleeve and covers 820-1200MHz with VSWR<2.2.