Zw. Du et al., EXACT SOLUTION FOR THE CHARACTERISTIC IMPEDANCE OF RECTANGULAR COAXIAL CONE TRANSMISSION-LINE, IEEE transactions on electromagnetic compatibility, 39(3), 1997, pp. 233-235
In this short paper, the exact and approximate expressions for the cha
racteristic impedance of a rectangular coaxial cone transmission line
are obtained using the conformal mapping method, The formula is exact
and simple, so, it enables the characteristic impedance of a broadband
transverse electromagnetic (TEM) cell to be calculated accurately and
easily.