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HOMEABOUT USINDUSTRY INFO THE LONGER THE ANTENNA LENGTH, THE BETTER?

The longer the antenna length, the better?

By sdga:NiceRF Wireless Technology Co., Ltd

Is the antenna length as long as possible, and the longer the antenna, the better the signal received? Don’t take it for granted, because the theory and practice have proved that this statement is unscientific. The optimal length of the antenna is actually a quarter of the wavelength. One.

The length of the antenna is determined according to the frequency of the transmitted and received signal, that is, the wavelength. When the length of the antenna is 1/4 of the wavelength of the radio signal, the transmission and reception conversion efficiency of the antenna is the highest, so it is not the longer the better to choose the communication antenna , A quarter of the wavelength is the optimal length of the antenna.

spring antenna

Generally used for communication antennas used in conjunction with wireless modules, it mainly depends on whether the antenna frequency matches the working frequency band of the wireless data transmission module. For example, if the working frequency band of the wireless data transmission module SV610 is 433 MHz, then a communication antenna with a frequency range of 433 MHz can be selected.

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