A novel fully textile-integrated antenna based on a slotted short-circuited microstrip line has been designed, manufactured and experimentally validated for its use in automobile upholsteries for dedicated short-range communications. The antenna can be manufactured using an industrial loom and a laser prototyping machine, avoiding subsequent treatments, sewing procedures or coatings. The manufactured antenna presents a central working frequency of 5.9 GHz and a 9.3% bandwith. Good agreement between simulations and measurements has been achieved.

Two millimetre-wave textile integrated waveguides, which only differ in the employed substrate, have been designed, manufactured and experimentally characterized. Both waveguides have been conceived to be based on the conventional substrate integrated waveguide technology while being fully integrated in textile. The manufactured prototypes have been characterized by using a back to back textile integrated waveguide to rectangular waveguide transition. The theoretically predicted behaviour of the prototypes has been experimentally verified.

A broadband flexible fully textile-integrated bandstop frequency selective surface working at a central frequency of 5 GHz and presenting a 1.8 GHz bandwidth has been designed, manufactured and experimentally characterised. The frequency selective surface consists of two isolated layers of periodic square-shaped conductive rings and, due to its symmetries, its performance is largely independent of polarisation and angle of incidence. The textile frequency selective surface has been simulated and experimentally validated under bent conditions providing a stable performance.

A novel mixed embroidered-woven coaxial-fed antenna based on a slotted short-circuited textile integrated waveguide has been designed, manufactured, and experimentally validated for its use in wireless applications. The structure of the antenna and the radiating slot can be manufactured using an industrial loom and a laser prototyping machine, respectively, whereas the conductive vias can be manufactured using a commercial embroidery machine, avoiding subsequent treatments or coating. The manufactured antenna presents a central working frequency of 5 GHz and a 20% bandwidth. Good agreement between simulations and measurements has been achieved. In addition, the performance of the antenna has been simulated and analyzed under bent conditions around an air-filled cylinder and using a phantom corresponding to a segment of an arm. This prototype demonstrates the possibility of implementing an alltextile antenna, reducing the backward radiation in comparison to the microstrip-based antennas by the use of a substrate-integrated waveguide topology.

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