Читать книгу Introduction To Modern Planar Transmission Lines - Anand K. Verma - Страница 66

For the short‐circuited load Z_L = 0, the line voltage at the load end is zero . However, the voltage on the line is not zero. Equations (2.1.63) and (2.1.64) provide the voltage and current distributions on a short‐circuited line:

(2.1.75)

The input impedance at any distance (ℓ − x) from the source end is

(2.1.76)

At the load end, the voltage is zero. However, the line current is not infinite like the lumped element circuit with a short‐circuited termination at output. A short‐circuited transmission line draws only a finite current from the source. The ℓ < λ/4 short‐circuited line section behaves as an inductive element. The electrical nature of the line section can be controlled by changing its electrical length [B.9–B.15].