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Ultrawideband Antennas: Growth and Evolution.

Om Prakash Kumar1, Pramod Kumar1, Tanweer Ali1

  • 1Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India.

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Summary

Ultrawideband (UWB) technology enables efficient radiation of short pulses across a wide frequency range. This review details UWB antennas, notch antennas, and the necessity of reconfigurable designs for advanced wireless systems.

Keywords:
frequency reconfigurable ultrawideband (UWB) notch antennaultrawideband (UWB)ultrawideband (UWB) notch antenna

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Area of Science:

  • Electrical Engineering
  • Wireless Communications
  • Antenna Theory

Background:

  • Narrowband antennas struggle with short pulse radiation, necessitating wider frequency utilization.
  • Ultrawideband (UWB) technology, operating between 3.1-10.6 GHz, offers solutions for high-data-rate applications.
  • UWB antennas are crucial for diverse applications including radar, medical diagnostics, and structural monitoring.

Purpose of the Study:

  • To review the fundamentals and importance of UWB technology in future wireless systems.
  • To survey various UWB antenna types, their design methodologies, and key characteristics.
  • To explore the concept and design of UWB notch antennas and the need for reconfigurable versions.

Main Methods:

  • Review of existing literature on UWB antenna design and applications.
  • Detailed discussion of methods for creating notches in UWB antennas (slots, resonators, metamaterials, filters).
  • Analysis of different UWB notch antenna designs, including their specifications, pros, and cons.

Main Results:

  • UWB technology is vital for next-generation wireless communication systems.
  • Various UWB antenna designs and their characteristics are presented.
  • Methods for achieving frequency notches and the advantages of reconfigurable UWB notch antennas are detailed.

Conclusions:

  • UWB technology addresses limitations of narrowband antennas for short pulse transmission.
  • Notching in specific frequency bands is essential for certain UWB applications.
  • Reconfigurable UWB notch antennas are critical for adaptable and advanced wireless communication systems.