Gain compensation method and device for a radio frequency module

A radio frequency module and gain compensation technology, applied in the radio frequency field, can solve the problem of no longer accurate, and achieve the effect of large supplementary range and high precision

Active Publication Date: 2018-11-23
GCI SCI & TECH
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  • Application Information

AI Technical Summary

Problems solved by technology

The accuracy of RF gain compensation depends on the minimum step of the RF attenuator. At present, the minimum step of the RF attenuator of the RF device manufacturer is 0.5dB, which cannot be more accurate

Method used

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  • Gain compensation method and device for a radio frequency module

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Embodiment Construction

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0053] see figure 1 , is a schematic flowchart of a gain compensation method for a radio frequency module provided in an embodiment of the present invention, and the method includes the following steps:

[0054] S1. Obtain a first power value and a second power value; the first power value is the power value of the output signal of the front-end module of the radio frequency module, and the second power value is the power value of the output signal of the radio fre...

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Abstract

The invention discloses a gain-compensating method and device for a radio-frequency module. The method comprises the following steps: acquiring a first power value and a second power value; calculating a current gain value according to the first power value and the second power value, and calculating a difference value between the current gain value and an initial gain value; when an absolute value of the difference value is greater than or equal to D1 and the difference value is a positive value, controlling the attenuation amount of a first radio-frequency attenuator to be added with a plurality of D1 in order that the absolute value of the difference value is smaller than the D1; when the absolute value of the difference value is greater than or equal to the D1 and the difference value is a negative value, controlling the attenuation amount of a second radio-frequency attenuator to be reduced by a plurality of D1 in order that the absolute value of the difference value is smaller than the D1; and when the absolute value of the difference value is greater than or equal to D2 and smaller than the D1, controlling the attenuation amount of a PIN (Positive-Intrinsic Negative) diode to be added with or reduced by a plurality of D2 in order that the absolute value of the difference value is smaller than the D2. Through adoption of the gain-compensating method and device, the radio-frequency gain compensating accuracy can be increased under the situation of ensuring that a radio-frequency gain compensating range is large enough.

Description

technical field [0001] The invention relates to the field of radio frequency technology, in particular to a gain compensation method and device for a radio frequency module. Background technique [0002] Radio frequency (Radio Frequency: RF) specifically refers to electromagnetic waves with a certain wavelength that can be used for radio communication. The high-frequency circuit used to generate radio frequency becomes a radio frequency circuit, which is basically composed of passive components, active devices and passive networks. With the development of communication technology, the frequency used by communication equipment is increasing day by day, radio frequency (RF) and microwave (MW) circuits are widely used in communication systems, and the field of radio frequency circuit design has received special attention from the industry. [0003] In the active transmitting\receiving system of radio frequency and microwave communication and LNA (low noise amplifier) ​​and PA ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03G3/30
CPCH03G3/3036
Inventor 赵栋
Owner GCI SCI & TECH
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