Title :
Millimeter wave transmittance and diffractive scattering of radome membranes
Author :
Afsar, M.N. ; Tkachov, I.I.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Tufts Univ., Medford, MA, USA
Abstract :
The study of electromagnetic properties of a number of woven and non-woven radome membranes with various diameter of threads of the fabric, and thickness of the laminate was made as a continuous function of frequency over the range 30-1000 GHz by utilizing Fourier transform spectroscopy. These woven and non-woven radome membranes were manufactured by W. L. Gore and Associates and known as "Gore-Tex". It is for the first time the transmittance has been measured with various angles of incidence of the incident wave for both TE and TM modes. Strong diffractive scattering has been found above the frequency with wavelength comparable with period of the fabrics (240 GHz for the standard Gore-Tex product).
Keywords :
Fourier transform spectrometers; electromagnetic wave diffraction; electromagnetic wave transmission; millimetre wave measurement; millimetre wave propagation; radomes; 30 to 1000 GHz; EHF; Fourier transform spectroscopy; Gore-Tex; TM mode; W. L. Gore and Associates; electromagnetic properties; incident wave; laminate thickness; millimeter wave diffractive scattering; millimeter wave transmittance; nonwoven radome membranes; radome membranes; thread diameter; woven radome membranes; Biomembranes; Electromagnetic diffraction; Electromagnetic scattering; Fabrics; Fourier transforms; Frequency; Laminates; Manufacturing; Spectroscopy; Yarn;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.960096
