نتایج جستجو برای: electromagnetic waves

تعداد نتایج: 181493  

Journal: :Quarterly of Applied Mathematics 1967

1995
Ching-Lieh Li Kun-Mu Chen

A full-wave analysis is applied to the scheme of measuring electromagnetic (EM) properties of materials over the frequency range of 0.3-4 GHz using a flanged open-ended coaxial probe. The excitation of complex waves, which include surface waves, radiative waves and radial guided waves in layered material media, is considered. With an accurate theory, this scheme may be used to measure both comp...

Journal: :Journal of Mathematical Analysis and Applications 1988

Journal: :Sensor Electronics and Microsystem Technologies 2015

Journal: :Journal of Mathematical Analysis and Applications 1987

Journal: :Journal of Applied Sciences 2011

Azadeh Amraee, Fateme Seif Mahsa SHakeri Mohammad Reza Bayatiani

Introduction: Communication between mobile phones and antenna BTS (Base Transceiver station) is carried by electromagnetic waves that have energy, according to their nature. Increasing use of mobile phones because of the proliferation of antennas the concerns about them are proposed in society. In the present study the correlation between distance from the BTS antennas and the ...

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