Journal of Guangdong University of Technology ›› 2014, Vol. 31 ›› Issue (2): 90-94.doi: 10.3969/j.issn.1007-7162.2014.02.017

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Research and Application of a Novel GNSS Microstrip Patch Antenna with a Cross Slot Cut in the Patch

Li Genglu1, Lin Fumin1, Zhang Huafu2   

  1. 1. School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006，China; 
    2. HiTarget Surveying Instrument Co.〖KG-*5〗, Ltd, Guangzhou 511400，China
  • Online:2014-06-06 Published:2018-06-12
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Abstract: A novel microstrip patch antenna with a crossslot cut in the patch is proposed and studied. The research results show that, compared with general microstrip antennas of satellite navigation, the new antenna with much wider band and smaller size has outstanding advantages,. The new patch antenna with a crossslot cut in the patch was applied to the design of dual band navigation antenna for highprecision GNSS applications, and the impedance bandwidth and axial ratio bandwidth were effectively enhanced. The designed antenna had enough bandwidth to cover the all band of Global Navigation Satellite System (GNSS). Good performance of impedance, axial ratio, gain and phase center stability were obtained by simulation of HFSS. Simulation results show that the antenna has good circular polarization performance, and it is compact as well, so it is especially suitable for handheld highprecision navigation terminals and is promising in application.

Key words: patch antenna, cross slot, bandwidth, compact, circular polarization

CLC Number: 

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