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access icon free Very simple circularly polarised printed patch antenna with enhanced bandwidth

A very simple circularly polarised (CP) printed patch antenna with enhanced bandwidth has been designed, fabricated and tested. The antenna consists of two semi-circular patches and a rectangular ground plane, and is excited by a simple microstrip feedline. The total substrate size is 50 × 50 × 1.52 mm3. The measured −10 dB impedance bandwidth is 101% (2.84–8.7 GHz) and the measured 3 dB axial-ratio (AR) bandwidth is 49.8% (3.95–6.57 GHz). Good agreement is achieved between measured and simulated results.

References

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      • 1. Toh, B.Y., Cahill, R., Fusco, V.F.: ‘Understanding and measuring circular polarization’, IEEE Trans. Antennas Propag., 2003, 46, (3), pp. 313318.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el.2014.2963
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content/journals/10.1049/el.2014.2963
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