Antenna Design And Implement For The Wearable Network

With the development of mobilephone, Bluetooth earphone, wireless network card, wireless router and wearable computers used near the human body. Quite soon we will see a wide range of unobtrusive wearable and ubiquitous computing equipment integrated into our everyday wear and the body-centric wireless network equipment will be studied bloomingly. Considering the needs, we proporse the concept of the wearable network. The key techniques for implementing the wearable network are the electromagnetic emission control and the wearable antenna implementation. In this paper, based on the computational electromagnetic methods, the radiation characteristic of antennas can be simulated together with visible human body model. The measurement of the antenna wearred with human can also be made by using network analyzer. In this paper, the radiation characteristics of the narrow band Bluetooth antenna and the broad band UWB antenna are simulated and the structure designs of the antennas are given. Furthermore, the narrow band wearable network has been stutied and estimated by measurement, and the human body effect caused by Bluetooth RF terminal has been studid.The main contents of this paper are as following:I. The SAR distribution in a High-Fidelity human body model caused by 2.4GHz band planar inverted-F antenna (PIFA) for Bluetooth application has been studied by sub-grid finite-difference time-domain (FDTD) method.II. The planar inverted-F antenna (PIFA) for the narrow band wearable network has been designed and the on-body channel propagations character has been studied by an experimental method when mounted on different positions on human body and with different body postures.III. The coupled planar dipole ultra-wide-band antenna has been designed and its properties have been studied for wearable computer and network application.