In this paper a new UWB textile slot antenna has been designed with high precision. This work aimed to makecloser steps towards real wearability by investigating the possibilities of designing wearable UWB antenna wheretextile materials are used for the substrate as well as the conducting parts of the designed antenna. The antenna iscomposed of three textile layers: the top and bottom are condu...

An axially corrugated horn antenna with an elliptically shaped taper is proposed for satellite communication applications. This structure is a good candidate for the feed of reflectors and also for improving the electrical properties of reflector antennas. A tapering method is used to justify the horizontal location of the corrugation profile which improves the electrical performance of the pre...

We report the use of a porous polytetrafluoroethylene capillary for the inline separation of liquid-liquid segmented flows, based on the selective wetting and permeation of the porous capillary walls by one of the liquids. Insertion of a narrow flow restriction at the capillary outlet allows the back pressure to be tuned for multiple liquid-liquid combinations and flow conditions. In this way, ...

Flow and flow-induced vibration of a square array of cylinders are investigated by two-dimensional numerical simulations. Flow past 36 cylinders in an inline arranged square array and 33 cylinders in a staggered arranged square array is firstly simulated, for Re=100 and the spacing ratios of L/D=1.5, 2, 3, 4, 5. Only one vortex street is observed in the wake of the cylinder array when the spaci...

The trend of deep pipelining and multiple instruction issue has made instruction sequencing an extremely critical issue. Traditionally, compiler-assisted instruction sequencing methods have been considered not suitable for deep pipelining and multiple instruction issue. Hardware methods such, as Branch Target Buffers have been proposed for deep pipelining and multiple instruction issue. This pa...

The goal of the work is to expand frequency range operation coplanar waveguide transmission lines as broadband high-speed superconducting protection devices against powerful ultrashort electromagnetic radiation, and apply them in antenna radio electronic systems designed ensure reliable critical infrastructure facilities. aim achieved by solving following tasks: investigating electrophysical pr...

Grant-free access is considered as a key enabler for massive machine-type communications (mMTC) it promotes energy-efficiency and small signalling overhead. Due to the sporadic user activity in mMTC, joint identification channel estimation (JUICE) main challenge. This paper addresses JUICE single-cell mMTC with single-antenna users multi-antenna base station (BS) under spatially correlated fadi...

In this work, a combined frontend of horn and slotted waveguide array antenna serving as feeding subsystem is presented. This setup allows to implement an amplitude taper in one plane while using the aperture shape far field radiation characteristics perpendicular independently tailored individual demand application. Moreover, system implemented loop resulting standing wave distribution for wid...

System-on-chip (SoC) has become an attractive solution to achieve highly integrated wireless systems. However, the antenna-on-chip (AoC) suffers from poor radiation due lossy silicon substrate in standard complementary metal–oxide–semiconductor (CMOS) processes. Artificial magnetic conductors (AMCs) with ground plane above can enhance radiation; however, fitting AMC completely thin stack-up (~1...

A novel multiband multiple-input-multiple-output (MIMO) antenna system is proposed. The MIMO antenna system consists of two antenna elements, each of which comprises of three radiators: a driven monopole, an S-shaped strip and an inverted F-shaped strip and occupies footprint of 15x18.5x0.8 mm3 only. The driven monopole acts as a quarter-wave monopole and stimulate higher mode resonance. The tw...