Cell Phone Signal Booster
The cell phone signal booster is composed of components or modules such as antenna, radio frequency duplexer, low noise amplifier, mixer, ESC attenuator, filter, power amplifier and so on.
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The basic principle of its work is: use the forward antenna to receive the downlink signal of the base station into the repeater, amplify the useful signal through the low-noise amplifier, suppress the noise signal in the signal, and improve the signal-to-noise ratio; and then down-convert to the intermediate frequency signal. , filtered by the filter, amplified at the intermediate frequency, and then shifted and up-converted to the radio frequency, amplified by the power amplifier, and transmitted to the mobile station by the backward antenna; at the same time, the backward antenna is used to receive the uplink signal of the mobile station, and the uplink signal is transmitted along the opposite path by the uplink amplification chain. Road processing: that is, through low-noise amplifier, down-converter, filter, intermediate amplifier, up-converter, power amplifier and then transmitted to the base station. Thereby, two-way communication between the base station and the mobile station is achieved.
