A Systematic LHCP Antenna Design Exploration for Smarter IoT Wireless Networks

This manuscript introduces a methodical investigation into the design of left-handed circularly polarized (LHCP) antennas tailored for optimal performance within the framework of Internet of Things (IoT) wireless networks. The envisioned antenna has been crafted using a cost-effective FR-4 substrate with specified dimensions $0.603 \lambda\times 0.603\lambda \times 0.0053 \lambda$ (Where $\lambda$ denotes the free space wavelength at the frequency of 2.59 gigahertz). By the use of circular cross slot parasitic patch mounted on foam spacer over regular truncated antenna, At 2.59 GHz, a heightened gain of 5.27 decibels isotropic (dBi) has been achieved. The proposed antenna can be useful for IoT devices compatible with 5G NR n38 and n41 bands.