TY - JFULL AU - V. Nagaraju and Tapas Bapu. B. R and Beryl J. Victor PY - 2014/12/ TI - Single Port Overlay Cognitive Radio Using Reconfigurable Filtennas T2 - International Journal of Electronics and Communication Engineering SP - 1818 EP - 1822 VL - 8 SN - 1307-6892 UR - https://publications.waset.org/pdf/10000376 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 95, 2014 N2 - In this paper cognitive radio is presented and the spectrum overlay cognitive radio antenna system is detailed. A UWB antenna with frequency reconfigurable characteristics is proposed. The reconfigurability is achieved when the filter is integrated to the feeding line of the single port overlay cognitive radio. When activated, the filter can transform the UWB frequency response into a reconfigurable narrowband one, which is suitable for the communication operation of the CR system. Here single port overlay cognitive radio antenna is designed and simulated using Ansoft High Frequency Structure Simulator (HFSS). ER -