Analytical Methods for the Study and Design of Integrated Switched Oscillators and Antennas for Mesoband Radiation
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We present an analysis of the thermal response of a hot-wire electroexplosive device (EED) excited with different transient signals. First-order and second-order analytical models to calculate the thermal response of an EED are assessed taking as reference ...
This paper presents the design, manufacture and test of a low-cost reflectarray antenna that provides a sectored-cosecant squared beam. The bandwidth limitation of single-layer reflectarrays is overcome by using three parallel dipoles in each cell. First, ...
Institute of Electrical and Electronics Engineers2013
A new vertically polarized omnidirectional antenna, inspired by an old design, has been studied, optimized, realized and measured. With a radiation pattern similar to the classical monopole on a ground plane, the proposed antenna concept provides a much la ...
The ironless inductive position sensor (I2PS) is a five-coil air-cored structure that senses the variation of flux linkage between supply and sense coils and relates it to the linear position of a moving coil. In air-cored structures, the skin and proximit ...
Institute of Electrical and Electronics Engineers2013
We present a new profile for the electrodes forming the radial transmission line of a switched oscillator (SWO). The profile is formed using a curvilinear orthogonal space based on a specific 2-D transformation called logarithmic-tangent. The proposed prof ...
This paper presents a coplanar-fed antenna designed to operate close to the human body in the 2.45 GHz Industrial Scientific Medical (ISM) band. The antenna matching is studied in free space and in body proximity. Two models of the human arm, with flat and ...
Wakes and impedances of single accelerator elements can be obtained by means of theoretical calculation, electromagnetic (EM) simulations or bench measurements. Since theoretical calculations apply only to simple structures and bench measurements have some ...
Fabry-Perot (FP) cavities having at least one partially reflective surface are widely used as compact and efficient high-directivity radiators. However, they inherently suffer from very narrow directivity bandwidths around the FP resonance. Here it is show ...
The performances of SIW horns antennas diminish significantly when the substrate thickness is much smaller than the free space wavelength lambda(0). Specifically, the mismatch between the antenna aperture and the air yields to unwanted back radiation and p ...
The measurement of the plasma current in ITER plays an outstanding role as it is part of the machine protection and is a safety-relevant measurement: it will be used in relation with regulatory limits to show that the operation remains within the safe enve ...