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A device and method for continuously adjustable system quality factor g/t value

A technology of quality factor and adjustment range, applied in transmission systems, transmission monitoring, electrical components, etc., can solve the problems of the maximum value not meeting the requirements, G/T value jumping, etc., to avoid the effect of access loss jumping

Active Publication Date: 2019-03-12
SPACE STAR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the low noise amplifier index and the influence of the insertion loss of the programmable attenuator itself, the two traditional design devices have the phenomenon that the maximum value cannot meet the requirements and the G / T value jumps when the bypass / access is switched.

Method used

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  • A device and method for continuously adjustable system quality factor g/t value
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  • A device and method for continuously adjustable system quality factor g/t value

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Embodiment Construction

[0012] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0013] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0014] like figure 1 As shown, the present invention designs a kind of system G / T value continuously adjustable device, comprises respectively setting a low noise amplifier...

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Abstract

The invention relates to a novel device for continuously adjusting a G / T value of a system quality factor. The device comprises a programmable attenuator and two low-noise amplifiers; therefore, the low-noise amplifiers and the programmable attenuator having existing performances can be sufficiently utilized; and thus, the capabilities of increasing the maximal value and continuously adjusting the G / T value of the system can be realized.

Description

technical field [0001] The invention belongs to the technical field of satellite ground system G / T value design, and specifically relates to a continuously adjustable device and method for ground system receiving G / T value. Background technique [0002] The system quality factor G / T value is the most basic parameter of the performance of the earth station, which is the ratio of the gain of the receiving antenna to the noise temperature, and characterizes the strength of the earth station's receiving ability. [0003] The high-speed motion of the aircraft will lead to the change of its equivalent receiving capability G / T value. In order to fully simulate and verify the change of its equivalent receiving capability, it is necessary to design a simulation test system with adjustable system G / T value. There are two traditional design devices with adjustable G / T value, one is the series mode of program-controlled attenuator + low noise amplifier, and the other is the parallel mod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/309H04B17/391
Inventor 温志军林广李璇吕增利
Owner SPACE STAR TECH CO LTD