When using two coupled inductors, the Imaginary part of input impedance appears positive as expected. However, when using the same circuit using four coupled inductors, he Imaginary part of input impedance appears negative (third and fourth inductors effectively open circuited. by high resistances).
When using two coupled inductors, the Imaginary part of input impedance appears positive as expected. However, when using the same circuit using four coupled inductors, he Imaginary part of input impedance appears negative (third and fourth inductors effectively open circuited. by high resistances).