Dual-Band Wearable Textile Antenna on an EBG Substrate

TLDR

The antenna is made from common clothing fabrics and operates at 2.45 and 5 GHz. The study presents the design of a coplanar antenna integrated with a band‑gap substrate. A dual‑band coplanar patch antenna with a 3 × 3 electromagnetic band‑gap array is described, achieving >10 dB reduction of body radiation and 3 dB gain improvement. The antenna shows >10 dB reduction of body radiation, 3 dB gain improvement, and maintains performance under bending and when worn on the human body.

Abstract

Performance of a dual-band coplanar patch antenna integrated with an electromagnetic band gap substrate is described. The antenna structure is made from common clothing fabrics and operates at the 2.45 and 5 GHz wireless bands. The design of the coplanar antenna, band gap substrate, and their integration is presented. The band gap array consists of just 3 times 3 elements but reduces radiation into the body by over 10 dB and improves the antenna gain by 3 dB. The performance of the antenna under bending conditions and when placed on the human body are presented.