Design of Compact Dual-Band Antenna for IOT Applications

Dual-band antennas play a crucial role in IoT applications, ensuring reliable wireless connectivity for smart homes, healthcare, industrial automation, and sensor networks. These antennas must be compact, efficient, and capable of operating across multiple frequencies for reliable data transmission. A microstrip patch antenna designed to operate at 2.4 GHz and 5.8 GHz fulfills these requirements. It is constructed using a Rogers RO4003C substrate with a dielectric constant of 3.38 and a thickness of 0.508 mm., ensuring minimal loss and high performance. Its compact dimensions are optimized for efficient radiation and impedance matching. The proposed design offers advantages such as stable dual-band operation, low return loss, and improved gain, making it well-suited for IoT communication. Simulation results show return loss values of -19.063 dB and -27.752 dB, with corresponding gains of 0.323 dBi and 3.142 dBi, demonstrating its effectiveness in supporting reliable wireless connectivity in IoT applications.