A quadrifilar helical antenna

Abstract

The invention discloses a four-wall helical antenna which comprises a TNC connector assembly, a PCBA, a first metal rack, a metal holder, an insulating ring, a straight metal line, an insulating rubber rod, helical metal wires, a filament plate PCBA and a second metal rack, wherein four helical grooves which do not block each other are formed at the periphery of the insulating rubber rod, the helical metal wire is mounted in each of the helical grooves, one end of the helical metal wire is fixed through the filament plate PCBA and the other end of the helical metal wire is connected to the PCBA through the first metal rack and the second metal rack, and the four helical metal wires are fixed through the insulating ring; the straight metal wire is arranged in the hollow part of the insulating rubber rod and is connected to the PCBA through the metal holder and passes through the insulating ring; the other end of the PCBA is connected to the TNC connector assembly. According to the four-wall helical antenna disclosed by the invention, the omnidirectivity of the antenna and the reception function of a dextral elementary pole are realized without being limited by direction. The performance of the antenna is further optimized and enhanced, the reception ability is relatively strong, and the antenna belongs to an omnidirectional satellite reception antenna.

Description

technical field [0001] The invention relates to an antenna applied to a satellite receiving end, in particular to a four-arm helical antenna. Background technique [0002] The GPS antenna or Beidou system currently on the market, the positioning antenna structure of the receiving end of the ordinary antenna is not a four-wall spiral method, but a single-pole metal wire or a metal wire wound into a helical shape is used as the antenna carrier. Low, the right-handed element pole cannot be realized, and the omnidirectional antenna cannot be realized, which leads to the unsatisfactory overall receiving ability of the antenna. Contents of the invention [0003] The purpose of the present invention is to provide a quadrifilar helical antenna capable of realizing the omnidirectionality of the antenna and the signal receiving function of the right-handed element pole without being limited by the directivity, so as to solve the problems raised in the above-mentioned background tech...

AI Technical Summary

Problems solved by technology

[0002] The GPS antenna or Beidou system currently on the market, the positioning antenna structure of the receiving end of the ordinary antenna is not a four-wall spiral method, but a single-pole metal wire or a metal wire wound into a helical shape is used as the antenna carrier. Low, unable to realize the right-handed element pole, and also failed to realize the omnidirectional antenna, resulting in the overall receiving ability of the antenna is not very ideal

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