دهخدا, پریسا
دانشکده مهندسی برق- دانشگاه صنعتی امیرکبیر- تهران- ایران
[ 1 ] - کاهش اثرات امواج موبایل به کمک آنتنهای آرایهای و تفکیک یک نقطه داغ به چند نقطه داغ
In this paper, new method for reduction of Specific Absorption Rate (SAR) in mobile handset is presented. The idea is based on the array antenna theory and this caused that by improvement of the gain, SNR be preserved and instead of one antenna and one strong hotspot, have the two antenna with two weak hotspot. For this array, the antenna must be equal with similar pattern to have the best arra...
[ 2 ] - Transmission and Reflection Characteristics of a Concrete Block Wall Illuminated by a TM-polarized Obliquely incident wave
Typically, many of the modern buildings have concrete walls constructed from cinder block walls, that have periodic nature in their relative dielectric constant. This periodic nature excites higher-order Floquet harmonic modes at microwave frequencies, which leads to the propagation of scattered waves along with non-specular directions. Periodic structures exhibit different behaviors when illum...
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