Miniaturized Novel Textile Antenna for Biomedical Applications

Abstract

A miniatured Novel Patch antenna for biomedical applications is proposed in this paper. This antenna will work in the ISM band. To compare the SAR value, the proposed antenna is designed in two ways: one without slots and one with slots. The SAR value for lg of tissue in wearable antennas should be less than 1. 6KW. In Computer Simulation Technology (CST), a multilayer phantom model is created to study the characteristics of the antenna when placed on the human body. As a radiating element, a microstrip patch is used, and silk is used as a substrate because it is a common textile material. According to the results, slots in the patch reduce the SAR value (Specific absorption rate). The simulated results, such as return loss, gain, and VSWR, are measured for both slot designs with and without slots. For patch with no interior slots, the return loss is approximately -32dB at 2. 42GHz for freespace and -13.5dB at 2. 42GHz for human phantom model. For patch with interior slots, the return loss is approximately -28dB at 2. 4GHz for freespace and -21dB at 2. 45GHz for human phantom model. The antenna system is simple in design, small in size, has a low SAR value, and has a high gain.