Fig. 7.

(a) Direct-write thermal spraying a custom circuit on a curved surface as shown by Gallagher et al. (Ref 93). Copyright 2013 IEEE. Reprinted, with permission, from M.W. Gallagher, W. C. Smith and D. C. Malocha, An integrated SAW sensor with direct write antenna, 2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC), pp. 450-453. (b-d) an L-C circuit, Frequency selective surface, and multilayer inductor with ferrite core all fabricated by direct-write thermal spraying as shown by Gouldstone et al. (Ref 92). Reprinted from C. Gouldstone, J. Gutleber, W. Smith, Direct‐Write Strain and Temperature Sensors for Harsh Environments, AIP Conference Proceedings, volume 894, issue 1, pp. 949-956, Copyright 2007, with permission from AIP Publishing