Design of a Miniature Inexpensive Diamond-Shaped Patch Antenna for 5G Mid-Band Applications

An antenna is one of the most important components in all wireless communication systems, representing the inter-mediary between the electronic device and propagation space. Today's antenna designs have to meet several criteria, such as compactness, small size, low cost, and good electrical performance. This work proposes a miniature inexpensive diamond-shaped monopole patch antenna carefully deposited on the top surface of a cheap Fiberglass-Reinforced (FR) Epoxy insulating substrate. The simulation results show satisfactory electrical performance, such as a low reflection coefficient
$(S_{11} < -10)$
dB in a frequency range of (3.02 GHz-5.75 GHz). An excellent Voltage Standing Wave Ratio
$({\it VSWR} < 2$
) was achieved at the resonance frequency of 3.53 GHz, and a good gain of 5 dBi. All the reached outcomes make the suggested antenna suitable for use in 5G Mid-band applications including n77(3.3-4.2GHz), n78 (3.3-3.8GHz) and n79 (4.4-5GHz) frequency bands.