A metal mesh circularly polarized antenna whose cost is low,manufacture is easy,and property is a material of environmental friendly protection compared to the traditional processes and the transparent material,is designed based on screen-printed copper paste.The antenna can be integrated into solar panels used on CubeSats or other micro-satellites.Its structure is intent to improve the axial ratio bandwidth relative to single-fed circular polarization,and simultaneously,to simplify the complex antenna structure compared to the dual-fed circular polarization.Circular polarization characteristics are achieved by adopting a ring with a gradual line width,a mesh feedline,and taking a ground plane as the antenna patch through asymmetric ground planes and a special feeding method.The simulation and measurement results show that the proposed antenna can obtain an effective signal radiation in the C-band (4~8 GHz),and its impedance bandwidth can reach 68.3% (5.5~11.2 GHz),and an axial ratio bandwidth can reach 25.1% (5.44 ~7 GHz).While maintaining a sufficient axial ratio beamwidth,a peak gain of 4.86 dBic is realized,fully meeting the requirements of satellite-to-earth communication applications.