Progress In Electromagnetics Research C
ISSN: 1937-8718
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By S. Maddio, G. Pelosi, M. Righini, and S. Selleri

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This paper describes the design and experimental characterization of a circular polarized printed antenna for dual-band WiFi operation at 2.45 GHz and 5.10 GHz. The patch design is based on a combination of slits loading and gap-coupling applied to a disc patch in order to enhance the radiation performances in terms of polarization purity and bandwidth at the two operation frequencies. Experimental validations confirm a maximum gain around 6.0 dB for both 2.45 and 5.10 GHz, as well as an axial ratio as low as 0.5 dB and a return loss exceeding 15 dB on the operating frequencies. These characteristics are suitable for operationing in IEEE802.11x networks.

S. Maddio, G. Pelosi, M. Righini, and S. Selleri, "A Circularly Polarized Antenna for Dual Band Operation at 2.45 GHz and 5.10 GHz ," Progress In Electromagnetics Research C, Vol. 74, 1-8, 2017.

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