传输线入门经典资料Transmission Lines
Complex Numbers, Phasors and Circuits
Complex numbers are defined by points or vectors in the complex plane, and can be represented in Cartesian coordinates
z = a + jb
or in polar (exponential) form
j = 1
z = A exp( jφ) = A cos ( φ ) + jA sin ( φ ) a = A cos ( φ ) real part b = A sin ( φ ) imaginary part
where
A= a + b
2
2
φ = tan
1 b
a
1
Amanogawa, 2006 ……
