Patent ID: 11626660

Abstract:
The present disclosure relates to the technical field of antennas and provides a dual-frequency current-balancing quadrifilar helical antenna, which belongs to the technical field of antennas in multi-mode global satellite navigation system. The dual-frequency current-balancing quadrifilar helical antenna comprises a radiating part and a feeding part, wherein: the radiating part comprises a hollow column and four sets of spiral arms with the same specifications and equal intervals; the spiral arms are wound on a surface of the hollow column and the feeding part is mounted at an end of the hollow column; each set of spiral arms comprises a main radiating arm and an auxiliary radiating arm; terminals of the main radiating arm and the auxiliary radiating arm are open-circuited or short-circuited, and a coupling component is arranged at an open-circuited or short-circuited terminal. The dual-frequency current-balancing quadrifilar helical antenna provided in the present disclosure can increase the energy of a parasitic frequency band, improve the performance of the parasitic frequency band, and reduce the size of the antenna.