A high frequency antenna is generally ______ than a low frequency one.

A high frequency antenna is generally shorter than a low frequency one due to the relationship between frequency and wavelength. The wavelength of a radio wave is inversely proportional to its frequency—higher frequencies correspond to shorter wavelengths. Consequently, antennas are often designed to be a fraction of the wavelength they are intended to transmit or receive most effectively. For higher frequencies, the antenna's length is typically a smaller fraction of the wavelength, resulting in a shorter physical size compared to antennas designed for lower frequencies, which must be longer to match the greater wavelength. This principle is fundamental in antenna design and explains why high frequency antennas are shorter.