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On the cavity problem for the general linear medium in Electromagnetic Theory

In this paper we study the propagation problem of a time harmonic electromagnetic field inside a cavity filled with a generic bianisotropic medium. We define the concepts of eigenfrequencies and modes of the cavity and we propose a method to prove their existence and countability. We extend, in this respect, the theory for the isotropic, homogeneous, lossless cavity.

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We investigated properties of electrical contacts to filamentary nanocrystals based on InAs, synthesized by chemical-beam epitaxy. Robust, low resistive Ohmic contacts were manufactured to InAs segment of filamentary nanocrystals both directly and indirectly, through a catalytic particle at the top of nanocrystals. Current-voltage characteristics and degradation characteristics of devices based on

Moment-method calculations on multiple apertures using singular basis functions

The transmission properties of perforated perfectly conducting screens are of practical interest. The treatment of non-periodical structures by numerical tecniques, such as the method of moments, is very computer intensive. In this paper it is shown that using well adapted basis functions, the number of unknowns can be drastically reduced. Advantages and limitations of the method are discussed. Nu

An Audio-Haptic Mobile Guide for Non-Visual Navigation and Orientation

People who have visual impairments may have difficulties navigating freely and without personal assistance, and some are even afraid to go out alone. Current navigation devices with non-visual feedback are quite expensive, few, and are in general focused on routing and target finding. We have developed a test prototype application for Android in which a user may scan for map information using the

Influence on the ear-to-ear link loss from heterogeneous head phantom variations

We have investigated the detuning of the antennas and the ear-to-ear link loss for the in-the-ear (ITE) binaural hearing aids considering the different heterogeneous human phantoms through FDTD simulations. It was found that the resonance frequency shifts differently for different phantoms and between the ears within the same phantom. The ear-to-ear link loss between the antennas for the homogeneo