Design and Performance Analysis of Compact Antenna Solutions for 5G-IoT Applications at 28 GHz

This research focuses on designing a compact millimeter-wave antenna for 5G-IoT applications at 28 GHz using a double-sided FR-4 substrate and copper layer. Simulation and measurement results indicate promising performance with a small size of 14.30 mm x 15.80 mm, a reflection coefficient of -45.11 dB, a VSWR of 1.011, a gain of 5.472 dBi, and a directivity of 6.694 dBi. The proposed design is anticipated to exhibit excellent performance characteristics for IoT applications and holds promise for efficient integration into 5G-IoT devices.