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A Beidou antenna with automatic gain control

An automatic gain control and antenna technology, applied in the field of satellite navigation, to achieve the effects of improving utilization, saving costs, improving reliability and ease of use

Active Publication Date: 2022-03-15
HEBEI JINGHE ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a Beidou antenna with automatic gain control, which solves the problem of antenna radiation power changes caused by loss changes between the terminal equipment and the antenna, and improves the reliability and ease of use of the equipment

Method used

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  • A Beidou antenna with automatic gain control
  • A Beidou antenna with automatic gain control
  • A Beidou antenna with automatic gain control

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Embodiment Construction

[0021] Below in conjunction with embodiment the present invention is described in further detail:

[0022] Such as figure 1 As shown, a Beidou antenna with automatic gain control includes a passive antenna unit A for receiving space electromagnetic wave signals, and the passive antenna unit A sends space electromagnetic wave signals to the S frequency point amplification unit B, B3 frequency point amplification Unit C, B2b frequency point amplification unit D and B1c frequency point amplification unit E filter and amplify and output the guided wave through the first-line port of the power division unit H, and the L transmission signal sent by the terminal equipment is filtered by the L frequency point amplification unit F, After being amplified, it is sent to the passive antenna unit A to convert the guided wave into a space electromagnetic wave signal. The L-frequency point amplifying unit F is provided with an L-frequency point AGC control unit G.

[0023] Such as figure ...

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Abstract

The invention discloses a Beidou antenna with automatic gain control, which includes a passive antenna unit A for receiving space electromagnetic wave signals, and the passive antenna unit A sends space electromagnetic wave signals to S frequency point amplification units B and B3 frequency points Amplifying unit C, B2b frequency point amplifying unit D and B1c frequency point amplifying unit E filter and amplify and output the guided wave through the first-line port of the power division unit H, and the L transmission signal sent by the terminal equipment is filtered by the L frequency point amplifying unit F After being amplified, it is sent to the passive antenna unit A to convert the guided wave into a space electromagnetic wave signal. The L frequency point amplifying unit F is provided with an L frequency point AGC control unit G. The present invention solves the loss between the terminal equipment and the antenna The problem of antenna radiation power changes caused by changes can improve the reliability and ease of use of equipment.

Description

technical field [0001] The invention relates to the technical field of satellite navigation, in particular to a Beidou antenna with automatic gain control. Background technique [0002] The Beidou satellite navigation system is a global satellite positioning system developed by China itself, and the antenna is an important part of it. In general, antennas are mainly divided into two types: passive antennas and active antennas. Passive antennas are mainly composed of antenna elements, and active antennas are mainly composed of antenna elements and amplifiers. The two types of antennas have their own advantages and disadvantages. When the active antenna is connected to the terminal equipment, it is usually softly connected through a cable, and the distance between the active antenna and the terminal equipment sometimes changes according to the actual usage, resulting in inconsistent loss of the connected cable, resulting in an input active The power of the antenna will chang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/13
CPCG01S19/13
Inventor 张志龙韦增旭任侃侃何赛男王强
Owner HEBEI JINGHE ELECTRONICS TECH