Detection of hazardous liquids used in explosive production is important terms public safety and health. Because many threats can be prevented by detecting these at security controls points. As existing methods have some disadvantages accuracy, practicality or reliability, there a demand for new liquid detection. In this paper, circular patch antenna detection was designed connecting to vector ...

In order to investigate a new magnetic and microwave absorbing properties, barium hexaferrite materials of BaFe 12 O 19 10 TiAlO were synthesized by solid state reaction (SSR) method. X-ray diffraction (XRD), Permagraph, vector network analyzer (VNA) used probe the crystal structure, absorption properties. The results obtained that structures have been shaped showed high susceptibility coercivi...

This paper presents four different models of 1x4 antenna arrays excited by quarter wave transformer and mitered bend feeding techniques. These antennae were designed developed to examine the various radiation performance characteristics. The Ansys HFSS tool was used simulate over frequency range (1-5GHz). simulation results compared identify optimized design model. Both types 1X4 with feed netw...

The paper presents the results of theoretical and experimental researches a frequency-tunable device based on multilayer strip-slot transition with U-shaped slot resonator variable length. application presented makes it possible to implement resonant method for measuring dielectric properties materials in microwave frequency range. numerical simulation rigorous formulation electrodynamics probl...

<p>In this paper, miniaturized microstrip crossover circuits are proposed using slots shapes obtained the superformula. The design starts by a conventional half-wavelength square patch crossover. For miniaturization purposes, different superformula slot introduced on patch. crossovers designed to operate at 2.4 GHz 0.8 mm thick FR-4 substrate with relative permittivity of 4.4. designs sim...

In this paper we provide a modified 3D Uniform Theory of Diffraction (UTD) model for finite-length cylinder, and validate the by comparing to simulation measured data. The presented finite-cylinder UTD is adapted from conventional infinite-cylinder model, additionally add edge diffraction occurring at cap finite cylinder. reference obtained CST measurement vector network analyzer based channel ...

Abstract We designed and fabricated a microwave transmitting antenna that uses an HTS thick disk as patch with resonant frequency of around 5.0 GHz. The reflection property S 11 , electromagnetic fields, current distributions, far-field several modes in the were analyzed using CST studio suite. compared properties resonance selected TM11 mode, which has smallest resonator size highest directivi...

In this paper, the nanocomposite magnetic material (NCMM) of substituted BaFe 12 O 19 and Fe 2 3 was synthesized by using solid state reaction (SSR) method. Ba 0.9 Ca 0.1 with different absorption frequencies were chosen to fabricate . The crystalline structure microwave properties investigated X-ray diffraction (XRD) a vector network analyzer (VNA) in frequency range 7-13 GHz, respectively. re...