A folded dipole $($whose length is l $=$ $2$ and spacing s between the two parallel length is much smaller than $,$ s $$ $),$ acts as an impedance transformer with a turns ratio of $2$:$1$; i$.$e$.,$ its impedance is $4$ times greater than that of a regular $2$ dipole. Such a folded dipole was a basic feed element of a Yagi$-$Uda antenna, which was popular TV antenna prior to the cable, especially for $2-3$ TV channels. Assuming the wire radius of the folded dipole is very small compared to the wavelength $($a $$ $)$: $($a$)$ Write an expression for the input impedance of the folded dipole. $($b$)$ If we want to resonate the folded dipole, what kind of an element $($inductor or capacitor$)$ shall we place in parallel across the input terminals of the folded dipole; i$.$e$.,$ which of the two is appropriate to accomplish the task? $($c$)$ At a frequency of $100$ MHz$,$ what is the value of the inductor or capacitor, whichever is appropriate to resonate the folded dipole of Part b$?$ Transmission Line Input $2$a s l $226$ LINEAR WIRE ANTENNAS $($d$)$ After the folded dipole has been resonated, what is its: Input impedance? Input reflection coefficient $($assume a twin$-$lead transmission line connected to it with a characteristic impedance of $300$ ohms$)?$ VSWR$?$