• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2024, Volume: 17, Issue: 1, Pages: 97-104

Original Article

A Double Band Notch Antenna with Flexible Frequency Tuning for Ultra Wideband Applications

Received Date:18 October 2023, Accepted Date:08 December 2023, Published Date:12 January 2024


Objectives: To develop a flexible double-band notched UWB antenna with frequency reconfigurable characteristics. Method: Meander slots on the radiating patch and ground structure are used to achieve dual band notches. PIN diodes are used to obtain frequency reconfiguration. Findings: Simulation analysis through HFSS shows a single band notch at 8.6 GHz when both diodes are ON and two notches are obtained at 5.3 GHz and 8.6 GHz when both diodes are OFF. The antenna's radiation pattern is omnidirectional. The findings reveal that the UWB antenna design offers valuable advantages, including the ability to notch specific frequency bands (dual band notching at 5.5 GHz and 8.6 GHz), ensuring compliance with regulatory standards, reducing interference, both in single and dual notch configurations, while maintaining an omni-directional radiation pattern (5 dBi). The design offers precise control over frequency rejection and hence flexible in design, enhancing versatility in wireless communication systems. Novelty: The performance characteristics, such as frequency tunability in the notch band, using the described method are a novel concept to the author's knowledge.

Keywords: Band Notch, PIN diodes, Reconfigurable antenna, Slot antenna, UWB


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© 2024 Magalada et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)


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