RF Electronics Chapter4: Transmission Line Transformers and Hybrids Page 65
2022, C. J. Kikkert, James Cook University, ISBN 978-0-6486803-9-0.
the maximum amplitude and the minimum amplitude is the Voltage Standing Wave Ratio
(VSWR), and can be related to the reflection coefficient as:
�� ���
��
��
��
�
�
�
�
Eqn. 4.6
In general the VSWR is the ratio of the actual impedance of the termination to the desired
impedance of the termination. If the allowable (VSWR) is W, the limiting value of the
sending end impedance is WZ
s
, substituting equation 4.4 into equation 4.1 gives:
�
�
�
�
�
�
�
�
��
�
���
�
�������
�
�
����
�
�������
� Eqn. 4.7
Solving for tan(l) and using the fact that normally W
2
<