This paper presents a low-profile ultra-wideband (UWB) antenna with artificial magnetic conductor (AMC), designed wireless body area network (WBAN) applications. The use of all- textile materials both substrate and conductive elements in antenna design offers advantages such as low profile, flexibility, and lightweight construction. The prototype of proposed monopole antenna is fabricated on felt substrate with dimensions of 35 \(\times\) 40 mm2. The designed antenna achieves a wide bandwidth ranging from 3.01 to 13 GHz. Furthermore, the AMC reflector with dimensions of 79 \(\times\) 79 mm2 is placed behind the antenna. The integration of an AMC reflector effectively reduces SAR and improves performance in proximity to the human body. The simulated SAR value of proposed antenna without AMC reflector is reduced from 22.9 to 0.292 W/kg when the AMC reflector is positioned beneath it. This SAR value is below the safety limit of 2 W/kg for a 10 g mass of tissue. Moreover, the designed antenna with AMC reflector achieves a maximum gain of 9.67 dBi at 11 GHz. The results indicate that the proposed antenna is suitability for WBAN applications due to its wideband operation, low profile, flexibility, and low SAR.
