Evaluation and Testing of Dual Band Reconfigurable Monopole Antenna for Cognitive Radio Applications

  • Rama Sanjeeva ReddyEmail author
  • N. Prasad
  • Nagesh Deevi
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 36)


Current research article involves the study and investigation of a novel reconfigurable monopole patch antenna applicable for cognitive radio services. Initially, a rigorous analysis is carried in tuning the dimensions of the antenna design progressively including the effect of change in dielectric constant and thickness values to obtain the optimized final structure. Outer dimensions of the antenna model are 65 mm × 75 mm by placing the RF switches (strips) between uniformly positioned dual slits on the top layer of the design. Fabricated antenna implanted on FR4 dielectric substrate operates at single band when the switches are in ON position and the configurations shifts to operate in dual bands when the switches are in either ON or OFF position by about 1.6% (from 0.35 to 2.65 GHz). Tuning of the resonant frequency of the structure can be performed by changing the length of the electrical length of the slot. Structures are implemented using 3D CST MW Studio simulator and found that better gain is obtained at both the operating frequencies when either of the switches are in ON/OFF state. In this paper, antenna for desired frequency bands by functional integration for cognitive radio systems with cost-effectiveness is presented.


Reconfigurable Dual bands FR4 substrate Strips Slot Gain 



The authors would like to acknowledge the support of SERB/ECR team under Department of Science and Technology with financial grant No. 000585 for carrying this work. The authors are also greatly indebted to Prof. N. V. S. N. Sarma, Dr. I. A. Pasha and colleagues of Department of ECE, BVRIT, Medak for their encouragement, support and inspiration throughout in preparation of this research article.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of ECEB V Raju Institute of TechnologyMedakIndia
  2. 2.Department of ECEPragati Engineering CollegeKakinadaIndia

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