Small Business Innovative Research Award

Topic Number: SB021-014
Proposal Title: Electronic Textile Antennas
Firm Name: Applied Radar, Inc.
Phase I/II: I
 
Technical Abstract:

Current man portable antennas are heavy, rigid, telescoping or umbrella like contraptions, which limit the mobility and speed of a deployed unit. We propose to improve the weight, storage size, and ease of deployment of a portable antenna through the use of electronic textiles as described in this proposal. Planar antennas have been manufactured on thin films and rolled into position, however a rigid mounting structure must be used to protect the film and to keep it in place. The unique ability of fabric to drape, and take any form repeatedly without damage, will be the key to enabling next generation conformable antennas. Incorporating conductive fibers into the weave of the cloth without losing the flexibility of the cloth requires non-contact "induced" current interconnects. Such induced interconnects can be created at radio frequencies by wires oriented broadside and spaced < 1/20-th of a wavelength apart. With typical fabric densities of 30 threads-per-inch such interconnects can be created up to 8 GHz in a woven pattern using standard textile manufacturing processes. This proposal will outline a practical approach to designing a woven RF patch antenna array in the 1.5 GHz band using conductive threads.