Abstract
The quasi-periodic Thue-Morse (T-M) multilayered band gap structures are studied at ultra high frequency band (UHF) by using a theoretical model based on matrix method (MM) for any incidence simulator. It is demonstrated that reflection spectrum in this frequency domain cover a great part of UHF band which contains the Global System for Mobile communication (GSM) bands, where the propagation of electromagnetic waves is forbidden in this region for all incident angle and all polarisations. The study of a deformed stack which is constructed according to the quasi-periodic sequences so that the coordinates y of the deformed object was determined through the coordinates x of the Thue-Morse stack in accordance with the following rule y=x(k+1), where k: the coefficient defining the deformation degree. Consequently, an omni-directional high reflector at UHF band covering the GSM band is established.