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Design and Study the Effect of Switching in Microstrip Patch Antenna for Cognitive Radio Applications


  • School of Electronics and Communication Engineering, Lovely Professional University Phagwara – 144411, Punjab, India


Design of microstrip antenna having switches for accomplishing frequency reconfigurability is proposed. The proposed design is having six resonating frequency bands between 3.34GHz to 3.67GHz which were achieved by using different switching configurations. Switches were assumed as ideal so as to study the simulated results of the antenna .The antenna design was made on the FR4 substrate having height of 1.6mm.The overall size of the antenna is 39×40mm2. Simulated results are utilized to validate performance of antenna. The radiation pattern, return loss and measured bandwidth are presented in the paper. Simulated results presented in this paper make the antenna are appropriate for applications such as cognitive radio which requires sensing of spectrum to use the bandwidth in an optimal manner.


Cognitive, PIN Diodes, Reconfigurable, Switching

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