ANF1-1HRA

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RF antennas are an important component of any wireless system. They are used to transmit and receive radio signals over a distance. ANF1-1HRA antennas are one of the most widely used types of RF antennas. In this article, we’ll discuss the application field and working principle of ANF1-1HRA antennas.

Applications of ANF1-1HRA antennas

ANF1-1HRA antennas are often used in a variety of applications such as remote monitoring, scientific research, and communication. They are also used in aircraft navigational systems as they provide an extremely high gain with restricted beam width. Furthermore, they are widely used in cellular communication, as they have a wide operating bandwidth avoiding the need to swap antennas for different frequencies.

Furthermore, ANF1-1HRA antennas provide a great solution for short-range applications such as local point-to-point communication and distributed antenna systems due to their omni-directional signal radiation. As such, these antennas are used in a variety of fields such as broadcast, aviation, military, and marine.

Working Principle of ANF1-1HRA Antennas

ANF1-1HRA antennas are linear antennas that operate on vertically polarized waves, which is why they are often referred to as vertical dipoles. They come with a single antenna element and utilizes a two-layer PCB permitting one antenna radiating element to be put on each layer. This element consists of one central conductor, which is a thin wire, and a couple of aluminum foil radiating elements, or foil strips, that are plastered beside the central conductor opening out in specific directions.

To function, the central conductor will need to be energized, and then apply power to the antenna. This energy will travel through the central conductor, and it will then create a capacitive coupling between the central conductor and the two aluminum foil strips. This will enable the antenna to perform as a quarter-wave vertical dipole, making signal radiation with an impedance of 50 Ohms.

This then enables the antenna to produce but energy from one side, where the vertical dipole pattern and the energy flow will be same from all directions. The power then continues along the two aluminum foil strips with the same magnitude. By the time the power reaches the end, it will have a particular form known as a donut that is symmetrically distributed. This donut will then be transmitted in the previously mentioned directions, enabling 360-degree coverage.

Conclusion

ANF1-1HRA antennas are increasingly becoming the go-to antennas for a variety of applications. This is mainly because of their high gain, wide operating bandwidth, and efficient omni-directional signal radiation, which make them a perfect choice for a number of applications in a variety of fields. Furthermore, their working principle is quite simple, with an easy to understand capacitive coupling between the central conductor and aluminum foil strips.

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