Log-Periodic Antenna(redirected from Log-periodic dipole array)
Also found in: Acronyms.
log-periodic antenna[′läg ‚pir·ē¦ad·ik an′ten·ə]
a type of a frequency-independent antenna with periodic repetition of the ratios of the characteristic dimensions of the adjoining components. The repetition obeys a logarithmic law in such a way that the ratio between the wavelength of the electromagnetic oscillations being radiated and the characteristic dimensions of the excited part of the antenna remains virtually constant over a wide frequency range.