
Antennas are available in different shapes, sizes, and forms. They are used in the different types of devices. Yagi antenna and Log Periodic antenna are the 2 major kinds of antennas used to boost signals in various devices. In this blog, we will study the major differences between Log Periodic Antennas and Yagi Antennas and the real meaning of both these antennas.
What is a Log Periodic Antenna?
LPDA or Log Periodic Dipole Antenna is the combination of multiple dipole elements. In this type of antenna, every dipole element is longer than the other elements. This structure gives a triangular shape to the antenna. It has various dipole elements of different lengths that help to emit and receive signals across the different frequencies.
Some users say that an LPDA (Log Periodic Dipole Antenna) looks similar to a Yagi antenna. But both of them are different from each other in shape and function.
Advantages of Log Periodic Antenna
After discussing the meaning of Log Periodic Dipole Antenna let us discuss the various benefits of this antenna. Some of the major benefits of a log periodic antenna are:
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Easy To Use
It is very easy to use Log Periodic Antennas because of their simple design. One can easily receive Bandwidth in LPDA without hard work and special equipment. Apart from that, the LPDA also gives a wider bandwidth than other antenna types. It is one of the most commonly used antennas in TV and other devices.
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Comes In The Different Shapes
An LPDA is available in multiple shapes and forms. It works better than other kinds of antennas. This antenna provides both uni-directional and bi-directional radiation patterns. It is a highly directional antenna and emits signals in various frequencies.
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Used for various applications
Log periodic antenna is used in multiple applications such as UHF, VHF, and HF communication. It is widely used to receive signals in TV reception. Log periodic antennas are also used in many residential and commercial areas to boost the signals in cell phones and receive high-quality communication.
What is Yagi Antennas?
Now, let us discuss the meaning of Yagi Antenna. It is a type of antenna that operates on a narrow frequency range. It is one of the best antennas to use in areas such as public safety systems and other applications where the signal is weak.
Advantages of Yagi Antennas
Yagi antennas have various benefits over other kinds of antennas such as:
- Yagi antenna works in a narrow frequency range.
- It is widely used in places where there is a weak signal.
- You will need a simple antenna on your roof to use Yagi antennas for gaining better signals.
- These antennas are available in customized form as well.
- This antenna is used in different public safety systems and other areas where one needs only a few cellular frequencies.
- It will provide a higher gain at its optimal frequency
Key Differences Between Log Periodic Antenna And Yagi Antenna
We talked about both the antennas in the above section. Now, let us discuss the major differences between an LPDA and a Yagi Antenna in this section:
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Kind of Frequency
Log-periodic dipole antenna provides wider frequency bandwidths than Yagi antennas. Due to wide frequency bandwidths, an LPDA is used in commercial and residential areas for TV reception. On the other hand, a Yagi antenna is widely used in areas where one needs a narrow frequency range.
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Applications
An LPDA is used in many residential and commercial areas where the signals are weak. It works on several frequency ranges where the indoor signals are weak. LPDAs are commonly used in communication systems and applications like IoT, LTE-M, LPWAN, LoRa, NB-IoT, and M2M applications.
On the other hand, the Yagi antenna works on a narrow frequency range and can be used in public safety systems and other applications. Yagi antenna is a top choice for applications where one needs only a few sets of cellular frequencies. It is mainly used in radio communications where directivity and gain are needed from the design of an RF antenna.
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Radiation Pattern
Log Periodic Dipole Antennas will maintain a consistent radiation pattern across the whole frequency range. This pattern will help to boost the strength of the signals and give clear communication.
Yagi antennas cannot maintain a consistent radiation pattern because of a narrow frequency range. They are used in very few applications in residential and commercial areas.
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Structure Of the Antenna
In terms of structure, the log periodic antennas contain 2 horizontal booms that are located a bit far. They also come with a protective cap that is located at the end of the boom.
Yagi antenna contains one horizontal boom and a combination of certain materials like plastic and aluminum.
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Process Of Working
Both these antennas have different processes of working. If an LPDA works at some frequency bands, the corresponding component will work. On the other hand, the full Yagi antenna works where the oscillator and reflection matrix will work.
Which Antenna To Choose?
We discussed the various differences between a Yagi antenna and a Log periodic antenna in the above section. Both these antennas have several similarities and differences. You can choose any kind of antenna according to your needs.
If you want better signals, choose the Yagi antenna. On the other hand, the Yagi antenna works on a narrow frequency range. It is a kind of Directional Antenna that provides better signals on a single frequency band.
In addition, you must look at various other factors while choosing the antenna. The major factors to determine are the working process, applications, frequency range, and types of components.
To get a proper idea, you can contact the online dealers of antennas. The manufacturers of antennas will provide a better idea of the type of antenna to choose for commercial and residential areas. You can visit the official websites of antenna manufacturing companies to learn more about Yagi antenna and an LPDA with the latest prices.