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Mostrando ítems 1-3 de 3

Acoustic insertion loss due to two dimensional periodic arrays ofcircular cylinders parallel to a nearby surface

Krynkin, Anton; Umnova, Olga; Sánchez Pérez, Juan Vicente; Chong, Alvin Yung Boon; Taherzadeh, Shahram; Attenborough, Keith (Acoustical Society of America, 2011)

The acoustical performances of regular arrays of cylindrical elements, with their axes aligned and parallel to a ground plane, have been investigated through predictions and laboratory experiments. Semi-analytical predictions ...
Creation of a magnetic boundary condition in a radiating ground plane to excite antenna modes

Sonkki, Marko; Cabedo Fabrés, Marta; Antonino Daviu, Eva; Ferrando Bataller, Miguel; Salonen, Erkki T. (Institute of Electrical and Electronics Engineers (IEEE), 2011-10)

The creation of a magnetic boundary condition into the plane of symmetry in a radiating ground plane of a portable device is proposed to enhance its radiation efficiency and bandwidth. This magnetic boundary condition is ...
Wideband planar slotted radiating ground plane antenna for portable devices

Tapani Sonkki, Marko; Antonino Daviu, Eva; Ferrando Bataller, Miguel; Salonen, Erkki T. (Wiley-Blackwell, 2011-12)

A method for exciting currents in a radiating ground plane over a wide frequency bandwidth is presented. Using a complementary slot in the ground plane excited by a closely spaced monopole (0.008-0.05¿) with 50 Î© input ...

Mostrando ítems 1-3 de 3