A Four-Port Antenna System for Cognitive Radio Applications


  • Prakash Namdev, Om Prakash Meena, Madhu Shandilya


Cognitive Radio, Ultra wide Band Antenna, Narrowband Antenna, Radio Applications


The antenna system for Cognitive Radio (CR) that is proposed in this paper is hybrid, compact, low profile, and multi-port. It consists a Funnel shaped UWB monopole (2–11 GHz) and three Slotted Rectangular NB antennas. In this antenna system one ultrawide band (UWB) antenna is used for sensing the frequency spectrum and three narrow band antennas are employed for communication purpose. The ultra-wideband antenna sense 2 GHz - 11 GHz spectrum which cover the ultrawide band frequency range from 3.1 GHz - 10.6 GHz, which is permitted by Federal Communication Commission in year 2002. Over the operational band, this antenna arrangement shows less than −15 dB isolation. CST Microwave Studio is used to simulate the system, and a prototype is built to confirm the outcomes. The observed and simulated results accord rather well. The suggested antenna may be used for public safety wireless communication, marine radio navigation, X-band satellite communication, mid-band 5G, ISM/WLAN/Military applications, and C-band operations.


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How to Cite

Prakash Namdev,. (2024). A Four-Port Antenna System for Cognitive Radio Applications. International Journal of Intelligent Systems and Applications in Engineering, 12(21s), 2159–2165. Retrieved from https://ijisae.org/index.php/IJISAE/article/view/5812



Research Article