Log Periodic (LP) dipole antenna arrays are explained. We discuss the basic idea behind the LP dipole array design, and then show a real world design.

The most common form of log-periodic antenna is the log-periodic dipole array or LPDA, The LPDA consists of a number of half-wave dipole driven elements of gradually increasing length, each …

A log-periodic dipole antenna (LPDA) is a broadband narrow-beam antenna that has impedance and radiation characteristics that are regularly repetitive as a logarithmic function of the excitation frequency.

As may be seen in Fig.1, the log-periodic array consists of several dipole elements which each are of different lengths and different relative spacings. A distributive type of feeder system is used to excite …

The main advantage of this antenna is that it exhibits constant characteristics over a desired frequency range of operation. It has the same radiation resistance and therefore the same SWR. The gain and …

Learn how to design and understand the working principles of the LPDA (Log-Periodic Dipole Array) antenna in this comprehensive video!

Dec 21, 2014 · Log Periodic Dipole Arrays, or LPDA is a directional antenna with relatively constant characteristics across it's wide frequency range.

Download scientific diagram | The structure of LPDA from publication: A Design of LPDA Antenna with Patch Dipoles for Airbone Communication | This article designs a Log-periodic Dipole...

Unlike many antenna arrays, the design equations for the LPDA are relatively simple to work with. If you would like to experiment with LPDA designs, click on the link below. It will open an EXCEL …

This document provides instructions for building a DIY log periodic dipole array (LPDA) antenna with 58 elements covering 700-2700 MHz. It includes diagrams of the antenna layout, labeling each element …