Wearable Proximity Coupled Antenna for IoT Applications

Abstract

Wearable antennas help people in many day-to-day activities inclusive of health monitoring, calorie burning, monitoring of oxygen level and the same measured data can also be shared to hospitals and attenders. Early, wearable antennas are found helpful for the elderly people and later a wide use of wearable antennas has been found in many fields. Wearable antennas found interest in medical, defence security and public entertainment fields. The antennas integrated with sporting cloths and being in shut proximity to the body are additionally appropriate for private wireless devices needed for maintaining quality of service, no matter the body movements. These wearable antennas can be body-worn antennas or wrist wearable ones and sometimes can be integrated with the dress materials. There are two types of wearable antennas, either on the layer of the skin or placed inside the body for the analysis of internal body parts. Some are made as capsules which are available for the patients to consume, for different analysis of body parts. A wearable antenna is supposed to be part of the garb used for communique purposes, which incorporates monitoring and navigation, cellular computing and public safety. Specific necessities for wearable antennas are a planar shape and bendy production substances. Several residences of the substances have an effect on the traits of the antenna. For instance, the bandwidth and the performance of a planar microstrip antenna are particularly decided with the aid of using the permittivity and the thickness of the substrate. The use of textiles in wearable antennas calls for the characterization in their residences. The proposed antenna is a rectangular microstrip MIMO antenna with a patch, with proximity coupled feed line. Two Nano strip feed lines are designed above substrate 1, which is placed above the perfect conducting ground plane. The Graphene based patch is placed above substrate 2. The feedlines are separated from the radiating material by substrate 2. Two excitation ports are assigned to the feed lines. The input for the excitation of the antenna is a Gaussian pulse.