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We present an ultrathin and flexible microwave broadband polarization transformer concept based on oriented carbon nanotubes dispersed in a polycarbonate matrix. Stacking anisotropic composite films with a controlled angle mismatch between successive layers produces a twist polarizer able to change the orientation of the electric field over broad frequency range in the microwave domain. The smart organization confers to the multilayer a high efficiency measured as a degree of twist, which reaches 75.1% at GHz frequencies for a 420 lm thick seven-layer stack.

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This page is a summary of: Flexible twist polarizer based on ultrathin multi-layered polymer-carbon nanotubes composite films, Microwave and Optical Technology Letters, August 2017, Wiley,
DOI: 10.1002/mop.30839.
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