TY  - JOUR
T1  - Modeling the Dielectric Mediums Impact on Coaxial Transmission
Line Performance
AU - Qasim Taha, Mohammed AU - Hamid AL-Jumaili, Mustafa AU - Khalid Ahmed, Abdullah 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 20
SP  - 8419
EP  - 8425
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.8419.8425
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.8419.8425
KW  - Coaxial transmission line
KW  -mathematical model
KW  -electrical model
KW  -dielectric mediums
KW  -polyimide
KW  -polyethylene
KW  -Teflon
AB  - In this research, mathematical modeling for the coaxial cable has been used to analyze transmission
line performance under three different dielectric mediums which are propagation medium in the coaxial cable and
to illustrate their role in the amount of Characteristic Impedance (Char Imp) of the transmission line. Polyimide,
polyethylene and Teflon dielectric materials have been examined to extract the values of the electrical model
elements, hence, the total reluctance and attenuation of the line. Also, this analysis is related to dielectric
mediums with respect to dielectric heat losses and its influences on coaxial cable inner and outer conductors.
Therefore, the mathematical model assembled by MATLAB is used to examine coaxial cables performance
according to the above effects of (dielectrics) insulators performance. Extracted results have demonstrated the
losses and attenuation in the propagation of electromagnetic waves.
ER  -