Log-periodic Loop Antennas Official

A log-periodic loop antenna can reduce transverse dimensions by a factor of roughly compared to an LPDA with similar radiation characteristics.

Like other log-periodic designs, the properties of an LPLA vary periodically with the logarithm of the frequency, allowing for consistent performance across a broad spectrum. Log-Periodic Loop Antennas

As the frequency changes, the "active region" of the antenna shifts along the array of loops. Higher frequencies resonate with smaller loops, while lower frequencies resonate with larger ones. A log-periodic loop antenna can reduce transverse dimensions

, where space is at a premium but wideband performance is necessary. Higher frequencies resonate with smaller loops, while lower

Despite their smaller size, LPLAs provide wide gain-based and polarization-based bandwidths.

Because of their high gain and compact form factor, LPLAs are frequently used as: .

, have been shown to yield a gain bandwidth of approximately and a gain of 12 dB . Primary Applications