Wide-frequency-range, high-sensitivity, spurious-free and large-dynamic-range light emitting case and light emitting method thereof

Abstract

The invention discloses a wide-frequency-range, high-sensitivity, spurious-free and large-dynamic-range light emitting case and a light emitting method thereof. The wide-frequency-range, high-sensitivity, spurious-free and large-dynamic-range light emitting case comprises a radio frequency selecting switch, a radio frequency processing unit, a filter bank and an optical modulator. The input of the radio frequency selecting switch is connected with radio frequency input signals, and the output of the radio frequency selecting switch is connected with the input of the radio frequency preprocessing unit; the output of the radio frequency preprocessing unit is connected with the input of the filter bank; the output of the filter bank is connected with the input of the optical modulator; the radio frequency selecting switch selects one of multiple paths of radio frequency signals as the input, the radio frequency preprocessing unit preprocesses the input radio frequency signals, the filter bank filters out the interference signals of the preprocessed radio frequency signals, the optical modulator converts the radio frequency electric signals into optical signals, and the optical signals output by the optical modulator is connected with optical transmission medium. The wide-frequency-range, high-sensitivity, spurious-free and large-dynamic-range light emitting case is low in signal transmission loss, high in signal receiving sensitivity, large in transmission signal dynamic range, free from frequency deviation during the optical modulation process and capable of avoiding interference signals.

Description

technical field [0001] The invention relates to the field of radio frequency signal transmission, in particular to a wide-band, high-sensitivity, stray-free, and large dynamic range light emitting box and a light emitting method thereof. Background technique [0002] The current radio communication technology is inseparable from the transmission of radio frequency signals, regardless of radio stations, mobile phone communication base stations, satellite communication base stations and so on. Usually, in order to achieve better communication effects, the transmitting or receiving antenna of the communication base station is erected on a higher iron tower, and the communication station or receiving equipment is installed in the computer room. The equipment and the antenna need to be connected by radio frequency cables to transmit radio frequency signals. [0003] (1) The high loss of radio frequency cables is not conducive to long-distance transmission [0004] The frequency ...

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a wide-band, high-sensitivity, stray-free, and large dynamic range optical emission box and its optical emission method, to overcome the signal attenuation problem of remote transmission of radio frequency signals, and to transmit analog optical signals To achieve signal transmission, and solve the problem of lightning protection and poor anti-interference ability of radio frequency signal transmission

Images