Yes, the component you show is clearly a coil, which is almost certainly there to provide inductance.
The impedance of a antenna varies widely with frequency and even relatively small geometry changes. Ideally a antenna looks resistive at the desired frequency, but it is often impossible to make the bare antenna look resistive in a size-constrained device. Instead, reactive components like inductors and capacitors can be connected in front of the antenna in a network such that the whole thing looks resistive to the transmitter or receiver. The inductor you show and the zig-zag traces above it are most likely part of a network that presents a different impedance to the RF circuitry than the bare antenna does. The zig-zag pattern probably also radiates, so is both part of the antenna and part of the impedance matching network.
If you want to delve into this further, look up something called a Smith chart. That is a old graphical device to help design the impedance matching networks for antennas. Given the bare antenna impedance and the impedance you want to achieve, it helps you determine how and what inductances and capacitances need to be used.