G9C11

What is a beta or hairpin match?

1. AA shorted transmission line stub placed at the feed point of a Yagi antenna to provide impedance matching
2. BA 1/4 wavelength section of 75-ohm coax in series with the feed point of a Yagi to provide impedance matching
3. CA series capacitor selected to cancel the inductive reactance of a folded dipole antenna
4. DA section of 300-ohm twin-lead transmission line used to match a folded dipole antenna

Pick an answer to check it.