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Gallina, I. (author), Delia Villa, A. (author), Galdi, V. (author), Pierro, V. (author), Capolino, F. (author), Enoch, S. (author), Tayeb, G. (author), Gerini, G. (author), TNO Defensie en Veiligheid (author)This letter deals with a study of aperiodically ordered textured (mushroom-type) high-impedance surfaces (HISs), and their possible application as artificial-magnetic-conductor groundplanes for low-profile directive antennas. In this framework, results from full-wave simulations are presented in order to characterize the electromagnetic response...article 2008
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An, X. (author), Zhang, S. (author), Hekmat, R. (author), TNO Informatie- en Communicatietechnologie (author)The IEEE 802.15.3 standard defines a widely-accepted MAC layer protocol for high data rate WPANs. However, resource allocation schemes are not specified in the IEEE 802.15.3 MAC. In this paper, an enhanced IEEE 802.15.3 MAC is proposed for 60 GHz based WPANs. The enhancement relies on a novel resource management scheme. By exploiting the...conference paper 2008
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Bruni, S. (author), Neto, A. (author), Marliani, F. (author), TNO Defensie en Veiligheid (author)In this paper a novel UWB directive and non dispersive lens antenna is presented. It is based on the broad band leaky wave radiation occurring at a slot printed between different homogeneous dielectrics. This paper presents the guidelines for the UWB design, the hardware demonstrator and pertinent measurements. The main motivation for this work...conference paper 2006
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Neto, A. (author), Bruni, S. (author), Gerini, G. (author), Sabbadini, M. (author), TNO Defensie en Veiligheid (author)A novel type of leaky-wave antenna is presented. Differently from previously reported leaky-wave antennas, it is characterized by a constant beam direction over a very wide range of frequencies. The radiation originates at a slot etched at the interface between air and a dense dielectric, which is shaped to form a cylinder of elliptical cross...article 2005