Adding a series inductance to an antenna would:

Adding a series inductor to an antenna electrically lengthens it. Because a longer antenna resonates at a lower frequency, adding inductance effectively decreases the resonant frequency of the antenna system. This technique is commonly used in mobile whip antennas. A physical whip might be too short to resonate on a low-frequency band like 40 meters, so a 'loading coil' (an inductor) is added in series to lower its resonant frequency. Conversely, adding a capacitor in series would electrically shorten the antenna and increase its resonant frequency. The distractors involving bandwidth and atmospheric noise are incorrect, as loading coils generally decrease an antenna's useful bandwidth rather than increasing it.