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Recent Advances in Electrical & Electronic Engineering

Author(s): Xianquan Luo and Juwei Lv*

DOI: 10.2174/2352096513999201112140532

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A Design of Multi-element Anti-jamming GPS Antenna

Page: [325 - 338] Pages: 14

  • * (Excluding Mailing and Handling)

Abstract

Background: With the development of the application of GPS satellite, the requirement of anti-jamming and integration for navigation receiving terminal is gradually raised. In terms of anti-jamming performance, because the satellite signal arrives at the ground with weak intensity and is vulnerable to electromagnetic interference, the positioning results are not available.

Objective: Therefore, in complex electromagnetic environment, the anti-jamming navigation receiving terminal is needed, and the interference nulling or beam pointing can be achieved by using multi- element antenna array with anti-jamming algorithm.

Methods: Accordingly to requirements, the development trend of navigation receiving terminal is from single mode to multi-mode and miniaturization. A miniaturized 7-element anti-jamming antenna array is proposed. It mainly aims at GPS L1 and L2 frequency points. All elements adopt ceramic substrate microstrip antenna. The array elements adopt laminated design to effectively reduce the antenna aperture. The spacing between elements at two frequency points is not greater than half wavelength, which can ensure the back-end anti-jamming algorithm performance, and its performance and characteristics are verified through related experiments and simulations.

Results: Anti-jamming algorithm performance, and its performance and characteristics are verified through related experiments and simulations.

Conclusion: The designed multi-element antenna can be used in the anti-jamming application.

Keywords: Anti-jamming antenna, multi-element, GPS antenna, design, polarized antenna, GPS L1.

Graphical Abstract

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