The major disadvantage of single stub tuning is: – McqOptions

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1.	The major disadvantage of single stub tuning is:
A.	it requires a variable length of line between the load and the stub
B.	it involves 2 variable parameters
C.	complex calculation
D.	none of the mentioned
Answer» B. it involves 2 variable parameters

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If the length of the line between the first stub and the load can be adjusted, the admittance can be moved from the forbidden region.
The standard stub spacing usually used is:
Stub spacing that are near 0 and λ/2 lead to more frequency sensitive matching networks.
THE_STANDARD_STUB_SPACING_USUALLY_USED_IS:?$
If_the_length_of_the_line_between_the_first_stub_and_the_load_can_be_adjusted,_the_admittance_can_be_moved_from_the_forbidden_region.$
Stub spacing that are near 0 and ‚âà√≠¬¨‚Ñ¢/2 lead to more frequency sensitive matching networks?#
The simplest method of reducing the forbidden range of impedances is:
All load impedances can be matched to a transmission line using double stub matching.
Impedance matching with a double stub tuner using a smith chart yields 2 solutions.
Double stub tuners are fabricated in coaxial line are connected in shunt with the main co-axial line.