Dual band dual mode triangular textile antenna for body-centric communications

A dual band dual mode triangular textile patch antenna is proposed for body-centric communication. The antenna has a broadside radiation pattern at 2.5GHz for supporting OFF body link whereas a conical-like radiation pattern at 5.8GHz for ON body link. Tuning of both broadside and conical radiating modes to the specific frequencies is achieved by loading three shorting pins and two symmetrical open-ended slots. This approach has resulted in the realization of the dual band-dual mode antenna using a single radiator with a simple structure. An all textile design further enhances the practicability of the antenna for wearable applications respectively.