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This study introduces a compact, reconfigurable antenna for diverse applications. It operates across C-band, 5G, and ISM bands, offering wideband, dual-band, and tri-band modes for smart devices.

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Area of Science:

  • Electrical Engineering
  • Electromagnetics
  • Antenna Design

Background:

  • Modern wireless devices require antennas supporting heterogeneous applications.
  • Existing antennas often lack the flexibility for multi-band and multi-mode operation.
  • Compact size and frequency reconfigurability are crucial for next-generation electronics.

Purpose of the Study:

  • To design and evaluate a compact-sized, frequency-reconfigurable antenna.
  • To achieve multi-operational modes including wideband, dual-band, and tri-band.
  • To target applications in C-band, 5G-sub-6GHz, and ISM bands.

Main Methods:

  • Initial design of a wideband antenna (4-7 GHz).
  • Formation of multiband antennas by loading stubs.
  • Integration of wideband and multiband antennas with PIN diodes for mode activation.
  • Optimization for desired bandwidths and performance.

Main Results:

  • The optimized antenna operates in wideband mode covering C-band, Wi-Fi 6E, and ISM bands.
  • Multiband modes provide additional coverage for LTE, 4G, lower ISM, and GSM bands.
  • Performance parameters show stability when compared with measured results.

Conclusions:

  • The proposed reconfigurable antenna demonstrates robust performance for targeted applications.
  • Its compact size (15 mm × 20 mm) and FR4 substrate make it suitable for smart devices.
  • The antenna's multiband and multi-mode capabilities position it for future electronic systems.