n-RiM: A Paradigm Shift in the Realization of Fully Inkjet-printed Broadband Tunable FSS using Origami Structures

A state-of-the-art methodology for the realization of fully inkjet-printed tunable frequency selective surfaces using ripple-Miura (an origami) structure is presented. The dipoles are inkjet-printed along multiple foldlines of the ripple-Miura structure which facilitates systematic reduction in inter-element distance and an unprecedented transformation of the dipole elements into a ripple-shaped structure with folding. This results in substantial reduction in electrical length of the dipoles to realize wide range of resonant frequency and bandwidth tunability. The design also features an excellent anale of incidence rejection.