Frequency reconfigurable DRA array using wideband Wilkinson´s approach

A quad section wideband Wilkinson power divider based aperture coupled frequency reconfigurable dielectric resonator antenna array is proposed. Frequency agility is achieved by variation of stub lengths due to the various switching states of two PIN diodes used in the feed line. The design methodology is based upon use of two square DRAs having resonant frequencies at 3GHz and 5GHz, fed by a Wilkinson power divider possessing wide bandwidth of about 1GHz to 6GHz. The antenna shows some wideband and multiband frequency agility property within 2GHz to 6GHz. The specialty of the antenna is its capability of being simultaneously used for most of the important wireless applications like Wi-Max, Wi-fi, WLAN, Bluetooth, C-band downlink communication within the intended frequency range.