Abstract

ABSTRACTThe paper presents design, simulation and experimental results for the reconfigurable square spiral antenna. This antenna is reconfigurable for two bands: band-I is 0.4–3 GHz which covers GSM, CDMA, Wi-Fi, multipoint communication system and band-II is 4.4–5.9 GHz which covers Wi-Max, 802.11Y, WLAN and 802.11a/h/j/n/ac standards. The antenna can be tuned to other aerospace and electronic warfare applications. This antenna structure offers a good radiation efficiency as the cavity is filled with low dielectric constant material and has high gain and directivity. PIN diodes have been used to achieve the reconfigurability.

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