Electromagnetic waves are studied with applications to microstrip antennas, 1'2 geophysical subsurface probing,3' 4 scattering from helical structures5 '6 and Smith-Purcell radiation from metallic gratings.7 Radiation and resonance characteristics of two coupled circular microstrip disk antennas are studied rigorously using numerical techniques, matched asymptotic analysis, and the newly develo...

A novel wearable Frequency Selective Surface (FSS) created using fabric materials capable of blocking electromagnetic radiation around the frequency 10.64 GHz (X Microwave band) is presented in this paper. Two different unit cell shapes are tested: embroidered metal yarn squares and hexagons. cotton with permittivity 1.9 thickness 0.4 mm used as a substrate. The proposed design validated by com...

In the paper first the harmful effects of electromagnetic radiation to human beings are pointed out. The sources of electromagnetic energy encountered in occupational and general public environment are revealed and the thermal and nonthermal influences of their electromagnetic fields are briefly discussed. A survey of exposure limits adopted in different national and international standards and...

Infrared (IR) radiation is a type of electromagnetic radiation. Infrared “light” has a longer wavelength than visible light. Red light has a longer wavelength than other colors of light, and infrared has even longer waves than red does; so infrared is sort of “redder-than-red” light or “beyond red” light. Infrared radiation lies between visible light and radio waves on the electromagnetic spect...