Which of the following is a characteristic of using a gamma match with a Yagi antenna?
Why A gamma match feeds the driven element off-center: the coax shield connects to the middle of the element (the zero-voltage point) and the center conductor goes through a series capacitor to a gamma rod tapped out along the element. Because the element's center is at RF ground potential, the element can be a single unbroken tube bolted straight to the boom, with no insulating center section or split needed. That mechanical simplicity and ruggedness is the main reason gamma matches are popular on Yagis.
Watch out The claim about needing no inductors or capacitors is wrong because a gamma match normally includes a series capacitor, with the gamma rod itself supplying inductive reactance; the gamma match is also a narrowband, single-band matching device, not a multiband solution.
Gamma = Grounded element: no split, no insulator, but yes a series capacitor.