Читать книгу Introduction To Modern Planar Transmission Lines - Anand K. Verma - Страница 89

For the port‐2 open‐circuited, I₂ = 0. The voltage at the port‐1 is

Likewise, for the port‐1 open‐circuited, I₁ = 0, and the parameters are Z₂₂ = Z_B + Z_C, Z₁₂ = Z_C. The [Z] matrix description of a T‐network is

(3.1.7)

Figure 3.2 Lumped T‐network.

The given circuit is asymmetrical. However, it is a reciprocal circuit. It becomes symmetrical for Z_A = Z_B.