Vico Bondía, Felipe; Greengard, Leslie; Gimbutas, Zydrunas(Springer Verlag (Germany), 2014-11)
We present a systematic analysis of the integral operators of potential theory that arise when solving the Helmholtz or Maxwell equations in the exterior (or interior) of a sphere in the frequency domain. After obtaining ...
Vico Bondía, Felipe; Gimbutas, Zydrunas; Greengard, Leslie; Ferrando Bataller, Miguel(Institute of Electrical and Electronics Engineers (IEEE), 2013-03)
In the electromagnetics literature, significant attention has been paid to the problem of low-frequency breakdown in the electric field integral equation. By contrast, the magnetic field integral equation is well-conditioned ...
Antonino Daviu, Eva; Sonkki, Marko; Cabedo Fabrés, Marta; Ferrando Bataller, Miguel; Salonen, Erkki T.; Sánchez Escuderos, Daniel; Herranz Herruzo, José Ignacio; Valero-Nogueira, Alejandro; Baquero Escudero, Mariano; Rodrigo Peñarrocha, Vicent Miquel; Vila Jiménez, Antonio; Bernardo Clemente, Bernardo; Vico Bondía, Felipe(Instituto de Telecomunicaciones y Aplicaciones Multimedia (iTEAM), 2014)
[EN] This paper summarizes the research that has been developed by the authors for the last six years, concerning the design of planar wideband antennas for portable devices. Basic structures combining electric and magnetic ...