Release date：2021-12-28Author source：KinghelmViews：195
Today, Beidou antenna is used more and more in our life. For example, for personal location services, when entering unfamiliar places, you can use mobile phones equipped with Beidou antenna or vehicle satellite navigation equipment to provide roads. Because of this, there are many Beidou antenna manufacturers. What are the specific performance indicators of this antenna.
1. Consideration of input impedance
The input impedance is the ratio of voltage to current at the Beidou antenna supply point. Generally speaking, the input impedance of Beidou antenna is a complex number, and the real part is called the input resistance. In addition, the input impedance of Beidou antenna is related to the shape, size, supply point position, working wavelength and surrounding environment of the antenna. Therefore, Beidou antenna manufacturers should pay attention to this when producing antennas.
2. Understand the performance through the pattern
At present, for the antennas produced by Beidou antenna manufacturers, in terms of performance indicators, the pattern is a graphical representation of the direction function, which intuitively describes the spatial distribution of electric field intensity, and uses the commonly used general power lobe width to represent the width of the pattern. Beidou antenna pattern is determined in long-distance areas, so it is also called long-distance pattern.
3. Polarization characteristics of antenna
The polarization characteristics of Beidou antenna are defined by the spatial direction of the electromagnetic wave emitted by the antenna from the emission direction to the electric field intensity vector, and the parameters of the spatial direction of the electromagnetic wave vector emitted by Beidou antenna are described. There is a certain relationship between the electric field and the magnetic field, so the space is generally directed to the polarization direction of the electromagnetic wave radiated by the Beidou antenna.
Want fromBeidou antenna manufacturer, to consider the performance index of this antenna, you will find that the performance of the antenna can be known mainly through these indexes.
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