Dissipation in Phase-Compensating Networks

The effects of dissipation in the lattice-type, phase-compensating network are considered. There are three effects: (1) the phase shift is slightly different from the ideal calculated value; (2) there is introduced an attenuation; (3) the image impedance varies, especially near the frequencies of resonance and antiresonance of the lattice arms. The third effect is most important as it causes highly inconvenient reflections. Two methods are described for avoiding this effect, one of the methods having the special advantage that it avoids effect (1) at the same time.