Which type of antenna is least likely to experience interference due to its design?

The parabolic antenna is least likely to experience interference due to its design because it has a highly directional focus. Parabolic antennas are designed to receive or transmit signals in a concentrated beam, which minimizes the reception of signals coming from other directions. This focus helps to isolate the desired frequency from extraneous signals, effectively reducing the impact of interference from nearby sources.

The shape of a parabolic antenna allows it to gather and reflect signals to a focal point, making it very effective for long-range communication as well. While omnidirectional, bidirectional, and multidirectional antennas pick up signals over a wider area, which can lead to more potential interference, the parabolic antenna's concentrated beam makes it ideal for applications requiring clarity and precision, such as satellite communications and microwave transmission.