On-Body Communication System Transmission Enhancement Using a Dual-Band Textile Artificial Magnetic Conductor

6×4 arrays of dual-band textile Artificial Magnetic Conductor (AMC) sheet-like waveguide incorporated with two dual-band textile diamond antennas are proposed for on-body communication system. The AMC sheet is designed to have zero reflection phase which means in-phase reflection at 2.45 GHz and 5.8 GHz. The main objective of this structure is to improve the transmission between antennas for on-body condition. The AMC and the antennas are designed on fleece substrate (ɛ^r = 1.35, thickness = 1 mm, tan = 0.025) with SHIELDIT fabric as the conducting patch. S-parameters of the antennas are investigated in on-body environment. The S21 transmission between antennas is enhanced up to 20 dB at 2.45 GHz and 12 dB at 5.8 GHz when the AMC is placed beneath them in on-body environment.