In this letter, an integrated frequency-tunable inverted-F antenna is presented. Thanks to a reconfigurable circuit using a digitally tunable capacitor (DTC), the antenna resonant frequency can be shifted over 32 different positions from 600 to 960 …
Internet of thing will soon connect billion of objects together. Interference with existing standard in the ISM bands and outside is a hot issue to solve. Ultra-narrow band modulation has recently been proposed to decrease interference for low-data …
In this letter, an antenna operating over the GSM band is proposed. Thanks to the use of a foam material as dielectric substrate, the prototype of this antenna is particularly light. It has a very low profile with overall dimensions equal to 0.31λ × …
In this paper, the effects of geometrical perturbations on the geometry of a reference fractal antenna have been carefully analyzed to provide a set of analytic rules for describing the resonant behavior of the antenna. As regards to the antenna …