The z-parameter matrix for the two-port network shown is
\(\left[ {\begin{array}{*{20}{c}} {2{\rm{jω }}}&{{\rm{jω }}}\\ {{\rm{jω }}}&{3 + 2{\rm{jω }}} \end{array}} \right]\)
where the entries are in Ω. Suppose Zb(jω) = Rb + jω.
Then the value of Rb (in Ω) equals ________.
Enter numerical value using the virtual keypad. Round off where necessary.