Log-periodic antenna - Wikipedia
A log-periodic antenna (LP), also known as a log-periodic array or log-periodic aerial, is a multi-element, directional antenna designed to operate over a wide band of frequencies. It was invented by John Dunlavy in 1952.
What is Log Periodic Antenna? Working, Characteristics ...
An antenna whose impedance acts as the logarithmically periodic function of the frequency of operation is known as log periodic. Also, the electrical properties like radiation pattern, directive gain, beamwidth, beam direction also undergo similar periodic variation.
Antenna Theory - Log-periodic Antenna - Online Tutorials Library
A Log-periodic antenna is that whose impedance is a logarithamically periodic function of frequency. The frequency range, in which the log-periodic antennas operate is around 30 MHz to 3GHz which belong to the VHF and UHF bands. The construction and operation of a log-periodic antenna is similar to that of a Yagi-Uda antenna.
Log-Periodic Dipole Array Antenna - Antenna Theory
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.
Log-Periodic Tooth Antennas - Antenna Theory
Log Periodic (LP) antennas are discussed and explained. The concept behind Log Periodicity and why this produces a wideband antenna is explained. Then we show the LP tooth antenna.
Antenna models with maximum foreshortening of 1.5 to 1, 2 to 1, and 3 to 1 were constructed. Gains and patterns of these models were measured and compared with the gains and patterns of a conventional log-periodic antenna without any element foreshortening.
Log Periodic (LPDA): Everything You Need to Know
The log-periodic Dipole Array (LDPA) is a multi-frequency antenna composed of a series of driven elements parallel to each other. One of the advantages of the LDPA is that each on each frequency that it is designed for the following essential characteristics of an effective antenna remains almost constant:
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