Abstract
In this letter, a new tri-band antenna is designed for a wireless body area network (WBAN) device. The proposed antenna consists of two new landolt ring-shaped strips connected by a rectangular strip and symmetrical stubs extended from the coplanar waveguide (CPW) ground plane. By integrating these techniques, an antenna with three operating bands, covering 3.19–4.57, 5.37–5.6, and 7.56–10.67 GHz, is obtained. The proposed antenna is optimized to satisfy the required band with good radiation patterns. The characteristics of the proposed antenna in on-body environment are also analyzed. In this scenario, a tri-band antenna for VSWR $ \leq $ 2 is also achieved successfully. The fabricated antenna has a compact size of $35 \times 26.6 \times 1.6\, \text{mm}^{3}$ . These features demonstrate that the proposed antenna is a suitable candidate for WBAN applications.
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