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A Compact Circularly Polarized Microstrip Ring Antenna Using a Slotted Ground for GNSS Applications

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Figure

Figure 1. Geometry of the proposed antenna. (a) Cross sectional view, (b) top view and radiationpatch (in blue), (c) bottom view (ground plane).
Figure 2. Variations of |S11| and AR with different sizes of G4 and G5. (a) |S11|, (b) AR.
Figure 4. The fabricated prototype. (a) Top view, (b) bottom view, and (c) side view.
Figure 5. Simulated and measured |S11| of the proposed antenna.
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