Abstract
A unique circularly polarized (CP) compact wearable dielectric resonator antenna (DRA) has been proposed for off-body communication in wireless body area network (WBAN) applications. The design is singly fed and a new H-shaped conformal metal strip has been used to excite the DRA. A circular polarization over a bandwidth of ~9.6% (7.47-8.25 GHz) in conjunction with an impedance matching bandwidth of ~20.7% (6.95-8.68 GHz) has been offered by the antenna. A prototype has been fabricated and measured. The antenna has been tested both in free space and on-body environment. A robust performance has been offered by the antenna against human body lossy effects. The measured results agree very well with the simulated results.
Highlights
From the last decade the wireless body area network (WBAN) has gained much more popularity due to increasing demand of wireless commutation in various applications such as multimedia, sports monitoring, health care, personal equipment, rescue operations and the military [1]–[9]
The wearable dielectric resonator antenna (DRA) has been excited on different ground materials and sizes to estimate the real life situation
The proposed antenna has been simulated at various distances from body to ensure the close proximity operation
Summary
From the last decade the wireless body area network (WBAN) has gained much more popularity due to increasing demand of wireless commutation in various applications such as multimedia, sports monitoring, health care, personal equipment, rescue operations and the military [1]–[9]. B. AXIAL RATIO OF THE WEARABLE DRA In Figure 7, the simulated axial ratio of the proposed antenna in free space and on-body scenario has been illustrated.
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