High-precision four-arm helical antenna
A four-arm helix, high-precision technology, used in antennas, flexible antennas, folded antennas and other directions, can solve the problems of inability to meet the use requirements, poor signal receiving effect, and weak structure, so as to improve the signal receiving effect and enhance the Solid, wide range of effects
Active Publication Date: 2019-02-01
江苏三和欣创通信科技有限公司
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Problems solved by technology
However, the existing four-arm helical antenna still has the disadvantages of small gain, poor signal reception effect, weak structure, and difficulty in frequency conversion, which cannot meet the requirements of use and has certain use limitations.
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0017] refer to Figure 1-3 , a high-precision four-arm helical antenna, including a base 1 and a shield 13, a circuit board 2 is provided in the middle of the upper end of the base 1, and a groove 22 matching the circuit board 2 is provided in the middle of the upper end of the base 1, and the concave The bottom of the groove 22 is provided with an elastic pad 24, and the setting of the groove 22 enhances the convenience when the circuit board 2 is installed, and can enhance the stability of the circuit board 2, and the buffer protection of the circuit board 2 can be strengthened by the elastic pad 24 effect.
[0018] The lower end of the circuit board 2 is connect...
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The invention belongs to the technological field of antennas and relates to a high-precision four-arm helical antenna. The high-precision four-arm helical antenna comprises a base and a shield; the middle portion of the upper end of the base is provided with a circuit board; the middle portion of the upper end of the circuit board is provided with a supporting column; the upper end of the supporting column is connected with a dielectric plate; the outer side of the supporting column is wound with spiral arms; the four spiral arms are wound on the supporting column along the same direction; positioning grooves are symmetrically formed in two sides of the upper end of the base; a clamping groove is formed in one side of each positioning groove; two sides of the lower end of the shield is symmetrically provided with positioning blocks matched with the positioning grooves; second springs are arranged in mounting grooves; and one end of each second spring is fixedly connected with a positioning rod which is used in combination with the clamping groove in a matched manner. Compared with the prior art, the high-precision four-arm helical antenna of the invention has the advantages of simple structure, convenient adjustment, wide application range and high practicality, and is worthy of popularization. According to the high-precision four-arm helical antenna, the resonant frequency ofthe four-arm helical antenna can be freely changed.
Description
technical field [0001] The invention relates to the technical field of antennas, in particular to a high-precision quadrifilar helical antenna. 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 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 quality of the antenna performance will directly affect the normal working status of the satellite navigation system terminal. The quadrifilar helical antenna has been used more and more widely as an antenna device with low cost, compact structure and small size. However, the existing four-arm helical antenna still has the disadvantages of small gain, poor signal reception effect, weak structure, and difficulty in frequency conversion, which cannot...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01Q1/08H01Q1/14H01Q1/36H01Q1/42H01Q5/10H01Q5/20H01Q5/307
CPCH01Q1/087H01Q1/14H01Q1/362H01Q1/42H01Q5/10H01Q5/20H01Q5/307
Inventor 李庚禄施静刘兆华娟李铎
Owner 江苏三和欣创通信科技有限公司