Multi-star single-frequency antenna based on multi-arm spiral

Abstract

The present invention relates to the technical field of antennas, especially to a multi-star single-frequency antenna based on multi-arm spiral. The antenna comprises an installation rack, the middleportion of the upper end of the installation rack is hinged with a protection housing through a spherical hinge, the lower portion of the inner cavity of the protection housing is slidingly connectedwith an installation plate, the upper end of the installation plate is provided with an antenna body, a fixed shaft is fixedly connected between the lower portions of the two sides of the inner wall of the protection housing, a first spring is arranged between two shaft sleeves, the first spring sleeves the outer side of the fixed shaft, the upper ends of the shaft sleeves are hinged with first swing rods through pin shafts, the lower ends of the shaft sleeves are hinged with second swing rods through pin shafts, and a second spring is fixedly connected between the first swing rods and the second swing rods. The multi-star single-frequency antenna based on multi-arm spiral is simple in structure and convenient to use, can randomly regulate the angle of the antenna body and can effectivelyprotect the antenna body from being damaged so as to greatly prolong the service life and the device and to be worth promotion.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a multi-satellite single-frequency antenna based on a multi-arm helix. Background technique [0002] The antenna is the key unit of the satellite navigation system terminal. The satellite navigation system terminal receives the electromagnetic wave signal emitted by the navigation satellite through the multi-arm spiral antenna, and provides it to the RF front-end processing on the terminal to obtain the navigation satellite signal and related data information. , therefore, the performance of the multi-arm helical antenna will directly affect the normal working state of the satellite navigation system terminal. [0003] After the existing multi-armed helical antenna is installed, the angle of the antenna cannot be adjusted according to the needs of use, resulting in poor signal receiving ability of the antenna, and the best signal receiving position cannot be provided to the user...

AI Technical Summary

Problems solved by technology

[0003] After the existing multi-armed helical antenna is installed, the angle of the antenna cannot be adjusted according to the needs of use, resulting in poor signal receiving ability of the antenna, and the best signal receiving position cannot be provided to the user. In addition, the existing multi-armed helical antenna still lacks Corresponding protection measures, the antenna is prone to damage due to collision and vibration, reducing the service life

Images