AMC-Based Low-Profile Dual-Band Slotted Patch Antenna for IoT Devices in the Healthcare System

An artificial magnetic conductor (AMC)-based patch antenna with a low profile is developed for wireless devices in IoT-based healthcare systems. The proposed comprises two pairs of circular-shaped patches slots and dual-band 4 × array AMC reflectors zero-degree reflection responses to enhance the antenna's radiation performance. For 2.45 GHz ISM 5.4 WLAN bands, has dimensions 0.44λ0 0.52λ0 0.013λ0, partial ground structures improve characteristics. Following that, unique symmetrical unit cell 22 1.6 mm3 developed. There gap 15 mm between surface. supported by that total dimension 0.72λ0 0.15λ0. coefficient values less than − 10 dB 1.7–2.5 5.1–5.6 bandwidth percentage 38 9.3%, respectively. gains were 7.2 dBi inside bands. Furthermore, Specific Absorption Rate (SAR) value did not match WHO's safety health guidelines. issue was solved including an surface antenna. At GHz, SAR 0.58 1.04 W/Kg measured. Vector network analyser anechoic chamber used test performance prototypes. substantial agreement among measured simulated parameters Consequently, combination structure suited often