Dual-Band Reconfigurable Flexible Antenna With Extensive Frequency Tuning Range

A dual-band frequency-reconfigurable flexible antenna with an extensive frequency tuning range of approximately 83% is proposed. This unique frequency agility feature is realized by implementing frequency tunability into two overlapping frequency bands and then combining them. The antenna is optimized to operate from 1.42 GHz to 3.43 GHz, which is centered on the 2.45 GHz Industrial, Scientific, and Medical bands for demonstration purposes. A prototype is manufactured and measured to validate the operating concept.