What is the frequency range of log periodic antenna?
around 30 MHz to 3GHz
The frequency range, in which the log-periodic antennas operate is around 30 MHz to 3GHz which belong to the VHF and UHF bands.
How does log periodic antenna work?
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. Electrically, it simulates a series of two or three-element Yagi antennas connected together, each set tuned to a different frequency.
What is the difference between Yagi and log periodic antenna?
Both Log-Periodic Antennas and Yagi antennas are high gain directional antennas. The main difference between these antennas is that Log-Periodic Antennas support wider frequency bandwidths and are physically much larger than Yagi antennas. Conceptually, Log-Periodic Antennas are similar to Yagi Antennas.
What are the advantages of log periodic antenna?
Benefits or advantages of Log Periodic Antenna The wide bandwidth is great advantage of this antenna compare to YAGI and other antenna types. ➨Low to moderate gains can be obtained. ➨It offers uni-directional and bi-directional radiation patterns. It is highly directional antenna.
Why is it called log periodic antenna?
Log periodic antenna is so named because its characteristics, could be gain or impedance, shows a periodic variation with log of the input frequency. The principle of operation may be explained by considering a log periodic dipole array. It contains a large number of elements.
What are the applications of log periodic dipole antenna?
Log periodic antenna applications The log periodic antenna is used in many areas wide bandwidth levels are needed along with directivity and gain. There are several areas where the antenna is used: HF communications: Log periodic antenna arrays are often used for diplomatic traffic on the HF bands.
Why is it called log periodic?
Log periodic antenna is so named because its characteristics, could be gain or impedance, shows a periodic variation with log of the input frequency. The principle of operation may be explained by considering a log periodic dipole array.
Which LPDA antenna is best?
GLI renowned manufacturer of the best quality LPDA antenna operates in the 700-2700Mhz GHz & provides 12 dbi gain. (Its Only Antenna for outdoor applications ) The antenna offers the N female connector guaranteeing wider compatibility.
What is the difference between resonant and non resonant V antenna?
From the radiation patterns of both, the difference between resonant antenna and nonresonant antenna is as follows. ➨Nonresonant antennas are uni-directional and resonant antennas are bi-directional. ➨In nonresonant antennas only forward waves exist and in resonant antennas both forward and reflected waves exist.
How good are log periodic aerials?
A Log Periodic TV aerial is perfect for digital reception as it rejects impulse noise much better than a traditional “Yagi” aerial. This often amply makes up for the fact that a Log Periodic aerial has slightly lower signal gain on the Group B and Group C/D UHF channels than a conventional Yagi-type wideband aerial.
What is LPD antenna?
New Product! The ANT-DB1-LPD-125 (LPD) is a panel-mount dipole antenna for WiFi/WLAN/U-NII 2.4 GHz and 5 GHz frequency band applications. The snap-in panel mount provides for easy and secure installation and the hinged whip with 3-position detent allows for optimal antenna positioning.
How do the elements of an active region in log periodic antenna behave?
The signal from adjacent dipoles is in phase. The region in which this occurs is called the active region of the log periodic antenna. Behind the active region, the signal again falls out of phase and no radiation occurs. The elements outside the active region receive little direct power.