antenna polarization的意思|示意

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Antenna polarization is an important concept in radio and wireless communication systems. It is the direction of the electric field vector relative to the Earth's surface that determines the type of polarization used in an antenna.

The two most common types of antenna polarization are linear and circular. Linear polarization is when the electric field vector is either vertical or horizontal in relation to the Earth's surface. Circular polarization is when the electric field vector is at an angle in relation to the Earth's surface, and rotates around the antenna.

Linear antenna polarization is generally used in basic communication systems. It provides good performance in an interference-free environment and is easy to set up. However, it does not provide the same performance in a noisy environment. Circular polarization is used in situations where the environment is more noisy or when multiple antennas are used in the same space. With circular polarization, the signal can be received from multiple directions, making it more reliable and efficient.

In addition to the two main types of antenna polarization, there are also other variations such as elliptical polarization and selective polarization. Elliptical polarization utilizes a combination of linear and circular polarization to give a more robust signal. Selective polarization is more advanced, and provides the user with control over the direction of the signal and the strength of the signals.

In conclusion, antenna polarization can help improve the performance of communication systems by allowing the user to select the type of polarization that will provide the best results. It is important to understand the different types of antenna polarization and how they can be used in various scenarios.