RF Directional Antenna

Introduction

RF directional antenna refers to an antenna that transmits and receives electromagnetic waves in one or several specific directions with particularly strong electromagnetic waves, while transmitting and receiving electromagnetic waves in other directions is zero or very small. The purpose of using directional transmitting antennas is to increase the effective utilization rate of radiated power and increase confidentiality; The main purpose of using directional receiving antennas is to enhance signal strength and increase anti-interference ability.

Peculiarity

Directional antennas are commonly used to cover long streets and have the following advantages:

1. It has a large forward gain

2. It can suppress the backward signal, which is very useful when the cell will cause potential interference to the cell behind it.

It is also worth mentioning that directional antennas can improve indoor coverage in certain buildings within the coverage area of small cells.

Kind difference

The antenna has different radiation or reception capabilities for different directions of space, which is the directivity of the antenna. Depending on the directionality, the antenna has two types: directional and omnidirectional.

Directional antenna

RF directional antenna, on the horizontal pattern, appear as a certain angular range of radiation, which is commonly known as directionality. As with omnidirectional antennas, the smaller the lobe width, the greater the gain. Directional antennas are generally used in communication systems in environments with long communication distance, small coverage, high target density and high frequency utilization.

Omnidirectional antenna

Omnidirectional antenna, that is, it appears as 360° uniform radiation on the horizontal pattern, which is commonly known as non-directionality. In general, the smaller the lobe width, the greater the gain. Omnidirectional antennas are generally used in communication systems with close distances, large coverage and cheap prices. The gain is generally below 9dB. The radiation range of an omnidirectional antenna is more like that of an apple.

Application

The RF directional antenna is generally used in urban cell system station type in mobile communication system, with small coverage, high user density and high frequency utilization. Different types of base stations are established according to the requirements of networking, and different types of base stations can choose different types of antennas according to their needs.

Certificate

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Shipping

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Packaging

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