0
405views
An aluminum waveguide with a=4.2 cm,b=1.5 cm,σc=3.5×107mhos/m, filled with telfon..

An aluminum waveguide with a=4.2 cm,b=1.5 cm,σc=3.5×107mhos/m, filled with telfon (μr=1,ϵr=2.6,σ=1015mhos/m) operates at 4GHz. Determine,

(a) αc and αd for TE10 mode

(b) The waveguide loss in dB over a distance of 1.5 m.

1 Answer
0
5views

Solution:

Cut off frequency for TE10 mode is,

$ \begin{aligned} & f_{\mathrm{c} 10}=\frac{1}{2 \mathrm{a} \sqrt{\mu \epsilon}}=\frac{1}{\mathbf{2 x} \mathbf{0 . 0 4 2}\\ \sqrt{\boldsymbol{\mu o 2 . 6 \epsilon}}}=2.213 \mathrm{G} \mathrm{Hz} \\\\ & \boldsymbol{\delta}_{\mathbf{s}}=\frac{\mathbf{1}}{\sqrt{\pi f \mu} \sigma_c}=1.35 \times 10^{-6} \mathrm{~m} \\\\ & \mathbf{R}_{\mathbf{s}}=\frac{1}{\sigma \delta s}=\frac{1}{3.5 \times 107 \times 1.35 \times 10-6}=0.02110 …

Create a free account to keep reading this post.

and 5 others joined a min ago.

Please log in to add an answer.