In this paper we propose an antenna geometry whose structure embodies dual stacked circular patches printed back to back on a single substrate in inverted microstrip configuration offering wideband performance suitable for mobile communication systems. The structure offers easy integration with active devices due to its inverted configuration as well as wide bandwidth without any enhancement in...

Abstract—A high-directivity patch antenna with broadside directivity is attractive, since a narrow beam can be obtained without the need of using an array of antennas. Therefore, the solution becomes simpler as there is no need for a complicated feeding network. In this sense, this paper presents a novel patch antenna design with high directivity in the broadside direction by using genetic algo...

5 Examples of applications 16 5.1 Wide versus narrow energy window: SrVO3 . . . . . . . . . . . . . . . . . . . 17 5.2 Unfolding band structures: LaOFeAs . . . . . . . . . . . . . . . . . . . . . . . 18 5.3 Entangled bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 5.4 Spin-orbit coupling: Sr2IrO4 . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 5.5 Wannier f...

This paper considers processing and visualization of radar scattering measurements from one or more wide-angle synthetic apertures. We consider both two-dimensional imaging and three-dimensional interferometric reconstructions. A point-scattering assumption is poorly suited to wideangle scattering; scattering objects within a target typically have narrow beam patterns, resulting in limited angl...

This paper presents new Wide Bandpass Filter (WBPF) and Narrow Bandstop Filter (NBSF) incorporating two microstrip resonators, each resonator is based on 2nd iteration of Hilbert fractal geometry. The type of filter as pass or reject band has been adjusted by coupling gap parameter (d) between Hilbert resonators using a substrate with a dielectric constant of 10.8 and a thickness of 1.27 mm. Nu...

BACKGROUND Long-term morphofunctional outcome may vary widely in surgical anterior left ventricular wall restoration, suggesting variability in post-surgical remodeling similar to that observed following acute myocardial infarction. The aim of this pilot study was to demonstrate that surgical restoration obtained with a particular shape of endoventricular patch leads to steady morphofunctional ...

Many theories of decision making assume that choice options are assessed along a common subjective value (SV) scale. The neural correlates of SV are widespread and reliable, despite the wide variation in the range of values over which decisions are made (e.g., between goods worth a few dollars, in some cases, or hundreds of dollars, in others). According to adaptive coding theories (Barlow, 196...

One of the challenging problems in geometric modeling and computer graphics is the construction of realistic human facial geometry. Such geometry are essential for a wide range of applications, such as 3D face recognition, virtual reality applications, facial expression simulation and computer based plastic surgery application. This paper addresses a method for the construction of 3D geometry o...

This paper introduces a new geometry of a rectangular microstrip patch antenna that improves the performance of a conventional microstrip patch antenna .This antenna is designed to operate at 5.38 GHz with enhanced bandwidth of 11.15%. For the desired result, a triangular notch is inserted into the patch antenna. The proposed geometry provides improvement in other radiation parameters like gain...