Low-cost full-band high-precision multifunctional navigation communication antenna

The embodiment of the utility model discloses a low-cost full-band high-precision multifunctional navigation communication antenna, which comprises a radiation sheet, a feed cable, a reflecting plate and a combining circuit, the radiation sheet is arranged above the reflecting plate, two orthogonal butterfly-shaped dipoles are arranged on the radiation sheet, the front surface of the reflecting plate is coated with copper, and the combining circuit is printed on the back surface of the reflecting plate; the combining circuit adopts a 90-degree bridge chip; and the two butterfly-shaped dipoles are respectively connected with the combining circuit for feeding through feed cables, and output right-handed and left-handed circularly polarized signals. The utility model has the advantages of stable phase precision, high positioning precision, good low-elevation signal receiving effect and the like; according to the utility model, the influence of the antenna on measurement errors is minimized, the structure is simp