Abstract: A method of radar cross section(RCS) reduction of microstrip printed dipole antenna with a uniplanar compact-EBG(UC-EBG) ground plane is proposed. Owing to its stop-band property, the proposed UC-EBG can be used as the ground plane of a microstrip printed dipole antenna. During the pass-band, the proposed UC-EBG make much more plane electromagnetic wave pass through. The simulated and measured results show that the proposed UC-EBG ground can effectively reduce the RCS of microstrip printed dipole antenna outside operating band, while its radiation is hardly affected by the proposed UC-EBG ground in the operating band.