A compact circular polarized patch fractal antenna for global navigation satellite systems

A compact circular polarized patch fractal antenna for global navigation satellite systems

A circular polarized square fractal patch antenna with square slot and via is proposed, which can be applied to global navigation satellite systems. Two pairs of square ring slot with different sizes are placed diagonally for antenna circularly polarized radiation. By changing the square patch into...

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Veröffentlicht in:Microwave and optical technology letters 2022-03, Vol.64 (3), p.520-524
Hauptverfasser: Wang, Encheng, Liu, Mengxin, Lin, Daming, Wang, Jie
Format: Artikel
Sprache:eng
Schlagworte:
Antennas
Bandwidths
Circular polarization
circularly polarized antenna
fractal
Fractals
global navigation satellite systems (GNSS)
Miniaturization
Navigation satellites
patch antenna
Patch antennas
Polarized radiation
Resonant frequencies
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Zusammenfassung:A circular polarized square fractal patch antenna with square slot and via is proposed, which can be applied to global navigation satellite systems. Two pairs of square ring slot with different sizes are placed diagonally for antenna circularly polarized radiation. By changing the square patch into a fractal structure and adding defective ground structure, miniaturization can be achieved while the bandwidth is further expanded. The total antenna size is 0.3λo × 0.3λo × 0.03λo (λo is the free‐space wavelength at 1.575 GHz). The final measurement results show that the maximum gain is 3.26 dBic, the 3 dB axial ratio (AR) bandwidth is 1.57–1.6 GHz and the impedance bandwidth (S11 
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.33110