Single Port Overlay Cognitive Radio Using Reconfigurable Filtennas

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).

• V. Nagaraju
• Tapas Bapu. B. R
• Beryl J. Victor

• Band-pass filter
• Cognitive radio
• filtenna
• frequency reconfigurable
• ultra-wideband antenna.

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