Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of Graph Search.
Publication
Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of Graph Search.
This paper presents a broadband dual-polarized substrate integrated waveguide (SIW) slot antenna. It is analytically shown that by decreasing the permittivity of a dielectricloaded slot antenna, the resulting bandwidth increases significantly, where the widest bandwidth can be achieved when the permittivity of the dielectric approaches near zero. To demonstrate this idea, a rectangular SIW slot is loaded by arrays of thin wires to realize epsilon-near-zero (ENZ) metamaterials (MTM), which consequently resulted in a simple, single-layer, compact and cost-effective structure. The measured impedance bandwidth (|S11| < -10 dB) of 13.6%, covering the millimetre wave (mmWave) frequency range of 22.6 GHz to 25.9 GHz is achieved. The radiation efficiency is higher than 80%, providing at least 9.5 dBi gain through the entire frequency band.
Romain Christophe Rémy Fleury, Amir Jafargholi, Jalaledin Tayebpour