Military Beidou second-generation satellite positioned multimode multi-frequency polarized receiving antenna

The utility model provides a military Beidou second-generation satellite positioned multimode multi-frequency polarized receiving antenna. The traditional satellite positioned receiving antenna works with a single mode or a narrow band, i.e. only one satellite system signal in global positioning system (GPS), BD or global navigation satellite system (GLONASS) is received, and a directional diagram is not ideal, so the application of the antenna is limited. The utility model adopts the following technical scheme that: two metal helical zone line radiation bodies A and B with width being gradually varied are coiled and intersected with each other on a vertical antenna bracket. The military Beidou second-generation satellite positioned multimode multi-frequency polarized receiving antenna has the beneficial effects that: since the two helical lines are distributed on the antenna bracket in a helical way to form a circular polarized radiation characteristic, the radiation of an ideal hemispherical coverage direct