In　this　paper,　a　single　zero　compensation　dipole　antenna　for　WLAN　frequency　band　is　designed.　The　antenna　can　be　suspended　above　the　space　and　the　radiation　range　can　cover　the　whole　space　below.　The　antenna　is　fed　by　the　parallel　transmission　lines,　and　the　radiation　unit　consists　of　a　printed　dipole　antenna　and　a　Yagi　antenna.　The　printed　dipole　antenna　is　printed　on　both　sides　of　the　FR-4　dielectric　substrate　with　relative　permittivity　of　4.3.　The　printed　dipole　antenna　adopts　complementary　symmetry　structure　to　optimize　the　non-roundness　of　H　plane.　The　driver　arms　of　the　Yagi　antenna　are　printed　on　both　sides　of　the　substrate,　while　the　director　and　the　reflector　of　the　Yagi　antenna　are　located　in　the　dielectric　substrate　to　compensate　the　zero　point　of　the　dipole　antenna.　The　simulation　results　show　that　the　VSWR　of　the　antenna　is　less　than　2　in　the　2.32-2.45　GHz　band.　The　maximum　directivity　is　more　than　1.8　dBi　in　the　2.322.45GHz　band.　The　non-roundness　of　the　H　plane　of　the　antennais　less　than　2dB,　which　shows　good　omni-directivity.　A　zero　point　in　the　radiation　pattern　of　the　E　plane　is　compensated,　and　it　is　-1.68dBi　at　2.36GHz,　0.62dBi　at　2.4GHz　and　0.48dBi　at　2.44　GHz,　respectively,　while　the　other　zero　point　of　the　E　plane　remains　below　-12　dBi　in　the　working　frequency　range,　namely　realizing　the　function　of　single　zero　compensation.　©　2019　IEEE.