Special cases again The input admittance of a transmission line for various special cases of termination at
the load end is shown in Table 2.3
Open circuit load YI = jY0 tan βl
Open Circuit λ/4 Line YI →∞ i.e. s/c
Short circuit load YI = −jY0 cot βl
Shorted λ/4 Line YI = 0 i.e. o/c
Table 2.3: Admittances of various transmission lines.
The values in this table are worthy of being committed to memory along with the
values in Table 2.2. It is also worth comparing the tables to confirm that the second is a
restatement of the same facts as in the first, but in admittance terms.
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