The matching of a driven element with a single adjustable mechanical and capacitive arrangement is descriptive of:

A gamma match is an unbalanced-to-balanced matching system used to feed a continuous driven element with coaxial cable. It uses a single adjustable rod (mechanical arrangement) mounted parallel to the driven element, coupled with a series variable capacitor to cancel the rod's inductive reactance. Unlike a "T" match, which uses two rods (one on each side of the boom) for balanced feedlines, the gamma match is single-sided, making it perfect for unbalanced coaxial cable. An "omega" match is similar but adds a second, shunt capacitor, meaning it involves more than just a single capacitive arrangement.