Wide beam multi-arm slot helical antenna

A technology of helical antenna and wide beam, applied in the field of wide-beam multi-arm slot helical antenna, can solve the problems of complex feeding structure of four-arm helical antenna, enhance the ability of coupling to metal slots, overcome the limitation of the number of arms, improve the The effect of antenna gain
CN104701622BActive Publication Date: 2017-09-26XIDIAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIDIAN UNIV
Publication Date
2017-09-26

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Abstract

The invention discloses a wide-beam multi-arm slot helical antenna, which is used to solve the problem of complex feed structure of the existing four-arm helical antenna. Including annular cylindrical dielectric substrate (1), annular conical dielectric substrate (2), annular cylindrical metal patch (3), annular conical metal patch (4), series-fed microstrip line (5), coaxial interface ( 6) and load resistor (7); the inner and outer surfaces of the annular columnar dielectric substrate (1) are respectively printed with a series-fed microstrip line (5) and an annular columnar metal patch (3). The series-fed microstrip line (5) N evenly distributed sector-shaped pieces (51) are provided on the annular columnar metal patch (3), and coupling adjustment gaps (31) corresponding to the sector-shaped pieces (51) are etched on the annular columnar metal patch (3); the outer surface of the annular cone-shaped dielectric substrate (2) An annular conical metal patch (4) printed with etched radiating spiral slits (41). The invention has the advantages of simple feed structure and wide beam, and can be used in fields such as communication and navigation.
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Description

technical field

[0001] The invention belongs to the technical field of antennas, and relates to a wide-beam multi-arm slot helical antenna, which can be used for communication, navigation and other multifunctional aircraft integrated system antennas. Background technique

[0002] The key role of the global satellite navigation and positioning system GNSS is to provide time, space reference and all real-time dynamic information related to the position. It is a strategic deterrent basic resource and a major technical support system for national defense security, homeland security, public security and economic security. At present, the satellite navigation systems in operation around the world include the GPS system of the United States, the GLONASS system of Russia, the Galileo system of Europe and the Beidou second-generation satellite navigation and positioning system of China. Due to the instability of the phase center of the general antenna, it will cause errors of centim...

Claims

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