An antenna system and method for tire monitoring systems provides a tubular antenna housing composed of suitably flexible material. An antenna is placed within the housing in either a straight configuration or a preferred alternative shape such as sinusoidal. The tubular housing may be straight walled or corrugated for additional flexibility. The electronics package may be provided with opposite ends dimensioned and configured for mating engagement with opposite ends of the antenna tube. Mating engagement between the electronics housing ends and the antenna tube ends secure the antenna tube to the electronics package. Subsequently, the antenna system may be secured by adhesive or other known techniques to the tire inner liner.