The National Interdisciplinary Science and Technology Institute (NIIST) is located in India's Tiffany, recently, which use 3D printing to develop a new type of wearable antenna that can be embedded in the fabric, such as military uniforms. The antenna and wireless devices have been integrated into military uniforms for a long time, but they are always not perfect. There are more or less problems, for example, due to the thin copper film attached to the glass to enhance the epoxy resin substrate, which makes them hard and difficult to incorporate in the fabric.
Niist's researchers have developed a new type of wearable antenna printed by conductive silver ink 3D. It is flexible and light, because it is silver rather than copper, it will not oxidize. The bottom electrode on the antenna embedded polyester fabric is 3D printing, and the E-shaped patch antenna can be used in a variety of applications, including defense, telemedicine and environmental monitoring.
Dr. P. Mohanan, Cochin University of Technology, said: "Our goal is to make wearable antennas, which can be embedded in jackets wearing soldiers in remote areas, we can connect antennas to different sensors, such as temperature, pressure and ECG Sensor, data can be transmitted to the remote server. Antenna can perceive and transmit data in a non-invasive manner. So we can monitor the health of soldiers. "
The antenna is about 3 cm long and 4 cm wide, and the antenna works at 3.37 Hz. It applies a PVC polymer to make it water-resistant, and can be woven into textiles applications for WiMAX (global microwave access interoperability). In order to maximize flexibility, the researcher does not penetrate into the material during the screen printing process, and the researchers are hot press three-layer fabric with polyacrylate sheets between the layers. The polyacrylate sheet is then used as an adhesive.
This is how to use 3D printing to improve the manufacture of telecommunications devices such as antenna. In many cases, 3D printing has been used to make the antenna, smaller volume, from a large number of multi-component components to a compact device consisting of only one component. 3D printing provides weight reduction means that costs can be reduced.
In a smaller size, the 3D print created antenna means making it more flexible and better on site. In military, the military affirm that they don't want their communication devices to fail, so it seems that a small advancement can make the embedded antenna performance better, actually a huge progress.
Original link: https://www.eeboard.com/news/3d-21/
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