A Novel Design Reconfigurable Antenna Based on the Metamaterial for Wearable Applications

Abstract

A novel design of wearable antenna depending on metamaterials inspired-fractal Minkowski-shaped for industrial, scientific, and medical (ISM) applications is presented. The antenna consists of a conventional monopole and a Chebyshev transformer coupled with a unit cell of a fractal Minkowski curve to obtain three bands covering the ISM and Wireless Local Area Network (WLAN) applications. To enhance the antenna performance, the authors proposed the Electromagnetic Band Gap (EBG) layer of 3×4 array is introduced into the design structure. The authors used material FR4 dielectric as a substrate to design the antenna with dimensions of 51mm x 45mm x 1.6mm and fed by a 50 Ω port. The Antenna performance is analyzed numerically using CST Microwave Studio (CSTMWS) depending the Finite Integral Technique (FIT). Various investigation analyses have carried out to verify optimum antenna performance. The proposed antenna realizes reconfiguration by using the PIN diode. In both cases (switching= ON, OFF) the antenna achieves good bandwidth, |S11|<-10dB, and excellent impedance matching.

A Novel UWB Monopole Antenna with Reconfigurable Band Notch Characteristics Based on PIN Diodes

“…This antenna patterns stability is due to selecting the PIN diodes position on the ground plane instead of the radiating patch element. However, due to manufacturing tolerance and the additional parasitic parameters caused by introducing several capacitors and bias wires, the simulated and measured radiation patterns are worse when integrating the PIN diodes on the antenna batch instead of the ground plane [34]. These eight radiation patterns under different biasing states exhibited certain similarities to each other, which confirmed the purpose of the proposed frequency reconfigurable antenna.…”

“…It is clear the radiation patterns of the proposed antenna display the same characteristics which are almost symmetrical in the Eplane and omnidirectional in the H-plane for the eight PIN diode states. Such stability in the radiation patterns for all the switches states in both E-plane and H-plane is a very desirable property in many applications [34]. This antenna patterns stability is due to selecting the PIN diodes position on the ground plane instead of the radiating patch element.…”

A survey on state of the inter body radio communication channel: Performance and solutions

“…There are numerous concerns with designing and fabricating the implantable antennas 104 . According to the aimed utilization of the antenna, the answers to the design questions could vary.…”

“…There are numerous concerns with designing and fabricating the implantable antennas. 104 According to the aimed utilization of the antenna, the answers to the design questions could vary. One of the main considerations is the reduction of the body's exposure to the materials that are non-biocompatible.…”