The main requirements of microwave circuit technology for wireless applications are a com‐ bination of high performance circuit, high integration density and frequency stability with a cost effective price [1-2]. Ceramic technology is particularly well suited to these require‐ ments due to the superior performance of their electrical, electromechanical, dielectric and thermal properties in orde...

Abstract. Large microwave surface emissivities with a highly heterogeneous distribution and the relatively small hydrometeor signal over land make it challenging to use satellite data retrieve precipitation be assimilated into numerical models. To better understand emissivity surfaces, we designed established ground observation system for in situ of several typical surfaces. The major component...

this paper presents an approach to modeling of field penetration and gives contribution to understanding the real effects of the fields and the sensitivity of human model to electromagnetic radiation generated by mobile antenna. when a human body is exposed to the electromagnetic radiation, because human body contain 70% of liquid, and it contain more liquid near of head, heart, abdomen (near o...

In this paper we propose to attach radio frequency (RF) shields on mobile phone to reduce Specific Absorption Rate (SAR) in the spherical head model. Shields made of ferrimagnetic materials are used to suppress surface currents on the mobile phone. Many kinds of simulation are performed to investigate the effect of various parameters like location, size, shape and thickness of the shield on the...

Within the European project "New Safe and Cost Effective Techniques Against Asbestos Risks" different methods for decontamination of asbestos in asbestos containing wastes, abbreviated as ACW from building industry were investigated. A mobile asbestos decontamination unit was developed, aiming at the complete disintegration of asbestos fibres on-site. The process is based on a chemo-thermal tre...

Conventionalmicrostriplowpass and bandpass filters such as stepped-impedance filters, open-stub filters, semilumped element filters, endand parallel-coupled half-wavelength resonator filters, hairpin-line filters, interdigital and combline filters, pseudocombline filters, and stub-line filters are widely used in many RF/microwave applications. Modern RF and microwave communication systems, spec...

With the ever-increasing demand on wireless spectrum by wide bandwidth applications, such as 3G mobile phones at RF frequencies, Multipoint Video Distribution System (MVDS) and Local Multipoint Distribution System (LMDS) in the millimeter-wave frequency range, there is a growing need to exploit higher and higher frequencies. So, mmwave field is becoming a rapidly emerging area of research. Keyw...

A new path loss model of interference between mobile terminals in a residential area is proposed. The model uses invertible formulas and considers the effects on path loss characteristics produced by paths having many corners or corners with various angles. Angular profile and height pattern measurements clarify three paths that are dominant in terms of their effect on the accurate modeling of ...

BACKGROUND It is widely accepted that DNA double-strand breaks (DSBs) and their misrepair in stem cells are critical events in the multistage origination of various leukemias and tumors, including gliomas. OBJECTIVES We studied whether microwaves from mobile telephones of the Global System for Mobile Communication (GSM) and the Universal Global Telecommunications System (UMTS) induce DSBs or ...

Recent rapid development of electromagnetic field (EMF) emitters (mobile phones, microwave broadcast stations, radiolocation, microwave sources in household devices) increased the environmental level of electromagnetic radiation. This, in turn, increased the interest on the possible risk of harmful influence of exposure to EMF. On the other hand, the low energy EMF of both low (homogenous magne...