題組內容

4.For a coaxial transmission line shown in Fig. 2, the capacitance per unit length is61d52ba8d6702.jpgand the inductance per unit length is61d52bcb8ab30.jpg. At high frequencies, the intemal inductance drops off (that is, approaching 0, and you should know which term is the internal inductance).

(4%)(a) Eind the characteristc impedance ofthe coasial line61d52c045f18c.jpgat high frquencies請務必將 internal inductance拿掉,並寫Zc之單位(即簡化61d52c3b4e3a9.jpg)。