Radio frequency signal sectional equalization circuit and method
A radio frequency signal and equalization circuit technology, applied in the field of radio frequency transmission, can solve the problems of high degree of flatness deterioration, flatness deterioration, and failure to meet the practical needs of the field, and achieve the effect of reducing the degree of flatness deterioration and ensuring accuracy
Pending Publication Date: 2018-09-14
成都芯通软件有限公司
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[0003] At this stage, most manufacturers use a section of equalization circuit to achieve equalization adjustment, but this method will lead to deterioration of flatness in the case of large equalization, and the greater the amount of equalization, the higher the degree of flatness deterioration, which cannot meet the practical requirements of the field. need
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[0023] The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.
[0024] Such as figure 1 As shown, the RF signal segmentation equalization circuit of the present invention includes: a micro-control unit, a level detection unit, a switch switching module, a variable equalization module, and an equalization module 1 and an equalization module 2, and the equalization module 1 and the equalization module 2 Different amounts of equalization are provided.
[0025] Among them, the equalization module 1 and the equalization module 2 are connected to the radio frequency transmission line through the switch switching module, and the switch switching module...
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The invention discloses a radio frequency signal segmented equalization circuit and method. The circuit comprises a microcontrol unit, a level detection unit, a switch switching module, a variable equalization module and a plurality of different equalization modules. The microcontrol unit controls the switch switching module to carry out connection on corresponding equalization modules and a radiofrequency transmission line and controls the variable equalization module to provide initial equalization quantity for the radio frequency transmission line according to equalization quantity needingto be configured. The microcontrol unit adjusts the equalization quantity of the variable equalization module in real time according to level magnitude of an equalized radio frequency signal detectedby the level detection unit, so the practical equalization quantity on the radio frequency transmission line reaches the equalization quantity needing to be configured. According to the circuit and the method, the wide range equalization quantity segmented adjustment can be realized, and the equalization adjustment accuracy also can be ensured.
Description
technical field [0001] The invention relates to the technical field of radio frequency transmission, in particular to a radio frequency signal segment equalization circuit and method. Background technique [0002] In the field application of the RF transmission system, it is necessary to adjust the equalization value according to the length of the front and rear cables to keep the signal level at the receiving end consistent. This requires the circuit to have a balance adjustment function. At present, the balance adjustment function is mainly realized in the following three ways, one is to replace the insert with a fixed equalization value, the other is to replace the insert with a fixed attenuation value, and the third is to adjust the equalization by ESC. [0003] At this stage, most manufacturers use a section of equalization circuit to achieve equalization adjustment, but this method will lead to deterioration of flatness in the case of large equalization, and the greate...
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IPC IPC(8): H04B3/14
CPCH04B3/14H04B3/148
Inventor 蒋志豪罗俊
Owner 成都芯通软件有限公司