October 3, 2025Applied SciencesOpen Access

Microstrip Patch Antenna for GNSS Applications

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Analysis reveals performance advantages of various substrate materials in microstrip patch antenna for GNSS, indicating key metrics for design.

The designed microstrip patch antenna achieves a gain greater than 3 dB, vital for GNSS integration.
Numerical simulations using Ansys HFSS showed signal attenuation differences of about −1 dB between FR-4 and RT Duroid 5880 substrates.
The study confirms that achieving an Axial Ratio below 3 dB is critical for guaranteeing effective circular polarization.
Optimal impedance matching of 50 Ω ensures a return loss of S11 < −10 dB, enhancing the antenna's bandwidth and performance.

Topal et al. (2025) studied this question.

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Analysis reveals performance advantages of various substrate materials in microstrip patch antenna for GNSS, indicating key metrics for design.