Abstract
Abstract TV White space has the potential to extend internet connection to remote areas worldwide. In this paper, a dual-band frequency reconfigurable microstrip patch antenna has been designed for TV white space applications. Switching between the frequencies (reconfiguration) has been achieved by introducing a switch between two radiating strips on the top surface of the substrate. The prototype has been designed and fabricated on a cost-effective FR-4 substrate (εr = 4.4, tanδ = 0.02) with an overall dimension of 30 × 261 × 0.8 mm3. ON and OFF condition of the switch provides two operating frequency bands namely 626.7–778.11 MHz and 461.5–549.7 MHz The proposed monopole TV white space antenna operates with a peak gain of 2 dB with an efficiency greater than 85% in both the bands. The simulated and measured parameters are well-matched in both the operating bands along with desired radiation patterns suitable for TV white space applications.
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