A Novel U-Slotted Microstrip Patch Antenna with Defected Ground Structure for 15 GHz 6G Mid-Band Applications

Abstract

This paper presents a novel U-slotted microstrip patch antenna integrated with a defected ground structure (DGS) for 15 GHz 6 G mid-band applications. The proposed antenna is designed to achieve enhanced impedance bandwidth, improved gain, and compact size suitable for future wireless communication systems. The U-slot introduced on the patch improves impedance matching and bandwidth performance, while the defected ground structure alters the current distribution, resulting in gain enhancement and reduced mutual coupling. The antenna is designed and simulated using CST electromagnetic simulation software. Simulation results demonstrate that the proposed antenna operates efficiently at 15 GHz with a reflection coefficient below -10 dB, stable radiation characteristics, and satisfactory gain and radiation efficiency. These characteristics make the proposed antenna a promising candidate for 6 G mid-band wireless communication applications.